ORDINANCE 1680ORDINANCE NO. 1680
AN ORDINANCE ADOPTING THE 2025 EDITION OF THE CALIFORNIA
BUILDING CODE, 2025 CALIFORNIA RESIDENTIAL CODE, 2025
CALIFORNIA ELECTRICAL CODE, 2025 MECHANICAL CODE, 2025
CALIFORNIA PLUMBING CODE, 2025 CALIFORNIA ENERGY CODE,
2025 CALIFORNIA HISTORICAL BUILDING CODE, 2025 CALIFORNIA
EXISTING BUILDING CODE, 2025 CALIFORNIA GREEN BUILDING
STANDARDS CODE, 2025 CALIFORNIA WILDLAND-URBAN
INTERFACE CODE, 2024 INTERNATIONAL SWIMMING POOL AND
SPA CODE, 2024 INTERNATIONAL PROPERTY MAINTENANCE CODE,
WITH CERTAIN APPENDICES AND AMENDMENTS AND AMENDING
THE EL SEGUNDO MUNICIPAL CODE TO REFLECT SUCH ADOPTION.
The City Council of the city of El Segundo does ordain as follows:
SECTION 1. Findings.
A. Government Code § 50022.9 authorizes the City of El Segundo (the "City") to
adopt, by reference, codes from another governmental entity as the City's own;
B. The California Building Standards Codes (the "California Building Codes")
established statewide codes and regulations for building construction and fire
safety and is published every three years by order of the California Legislature;
C. The 2025 California Building Codes are based upon the International Code
Council's 2024 International Building Code;
D. The 2025 California Building Codes were published on July 1, 2025 and will
become effective on January 1, 2026;
E. California Health & Safety Code §§ 17958.5 and 18941.5 authorize cities and
counties to modify the California Building Code by adopting more restrictive
standards and modifications if such standards and modifications are
accompanied by express findings that they are reasonably necessary because
of local climatic, geological or topographical conditions; and
F. In accordance with Health & Safety Code § 17958.7, the City Council finds that
there are local climatic, geographic, and topographical conditions justifying the
various local amendments to the California Building Code Standards Code as
set forth in attached Resolution No. 5573 which is adopted by the City Council
and incorporated herein by this reference.
Ordinance No. 1680
Page 1 of 87
SE,;C- COI 2. Sections 13-1-1 and 13-1-2 of Chapter 1 of Title 13 of the El Segundo
Municipal Code ("ESMC") are repealed and replaced by the following to read as follows:
CHAPTER 1
BUILDING CODE
13-1-1: ADOPTION OF CALIFORNIA BUILDING CODE, 2025 Edition:
Pursuant to California Government Code Section 50022.2, the California Building Code,
2025 Edition, published as Title 24, Part 2, of the California Code of Regulations, including
Appendices F, H, I, and J ("CBC") is adopted by reference, subject to the amendments,
additions and deletions set forth in Section 13-1-2. One true copy of the CBC is on file in
the office of the Building Official and is available for public inspection as required by law.
13-1-2: AMENDMENTS TO CALIFORNIA BUILDING CODE:
The California Building Code adopted pursuant to Section 13-1-1 is hereby amended as
follows:
Section 105.1 of Chapter 1 of the CBC is amended to read as follows:
105.1 Permit Required.
Any owner or owner's authorized agent who intends to construct, enlarge, alter, repair,
move, demolish or change the occupancy of a building or structure, or to erect, install,
enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical or
plumbing system, the installation of which is regulated by this code, or to cause any such
work to be performed, shall first make application to the building official and obtain the
required permit. Parking lots shall not be paved, improved, striped, or restriped unless a
separate permit for each parking lot has first been obtained from the building official.
Exception: A separate permit shall not be required to pave, improve, stripe, or restripe a
parking lot when such work is included in the scope of another project for which a building
permit has been issued and when the design of such parking lot was included in the plan
check review of such project
Subsection 14 is added to Section 105.2 of Chapter 1 of the CBC as follows:.
105.2 Work exempt from permit.
Building:
14. Block wall and concrete fences not over 3 feet 6 inches high.
Section 105.3.2 of Chapter 1 of the CBC is amended to read as follows:
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105.3.2 Expiration of Plan Check.
An application for a permit for any proposed work shall be deemed to have been
abandoned 180 days 12 months after the date of filing, unless such application has been
pursued in good faith or a permit has been issued; except that the building official is
authorized to grant one or more extensions of time for additional periods not exceeding
90 days each. The extension shall be requested in writing and justifiable cause
demonstrated. [OSHPD 1, 1R, 2, 4 & 5] Time limitation shall be in accordance with the
California Administrative Code, Chapter 7, Section 7-129.
Section 105.8 Chapter 1 of the CBC is added to read as follows:
105.8 Responsibility of permittee.
Building permits shall be presumed by the city to incorporate all of the work that the
applicant, the applicant's agent, employees and/or contractors shall carry out. Said
proposed work shall be in accordance with the approved plans and with all requirements
of this code and any other laws or regulations applicable thereto. No city approval shall
relieve or exonerate any person from the responsibility of complying with the provisions
of this code nor shall any vested rights be created for any work performed in violation of
this code.
Section 109.4 of Chapter 1 of the CBC is amended to read as follows:
109.4 Work commencing before permit issuance.
Any person who commences any work on a building, structure, electrical, gas, mechanical
or plumbing system before obtaining the necessary permits shall be subject to a fee in
addition to the normally established permit fee, equal to 100% of such normally
established permit fee, or as otherwise determined by the building official.
Section 109.6.1 of Chapter 1 of the CBC is added to read as follows:
109.6.1 Plan check fees refund.
No portion of the plan check fee shall be refunded unless plan review has not been
performed, in which case 80 percent of the plan check fee shall be refunded upon written
application for refund submitted by the person who made original payment of such fee and
with the written consent of the owner of the real property on which the work was proposed
to be done. The Building Official shall determine, in such official's discretion, whether an
applicant is qualified to receive a refund. After 180 days have elapsed from the date of the
submittal for plan check, no plan check fees shall be refunded. In the event subsequent
application for plan check is made by a person who has received a refund, the full amount
of all required fees shall be paid as elsewhere provided in this chapter.
Section 109.6.2 of Chapter 1 of the CBC is added to read as follows
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Page 3 of 87
109.6.2 Permit fees refund.
In the event any person shall have obtained a building permit and no portion of the work or
construction covered by such permit shall have commenced, nor any inspection
performed by any City employee, and notice of abandonment has been received from the
owner of the real property on which such work would have been performed, the permittee,
upon presentation to the Building Official of a written request for refund, shall be entitled
to a refund in an amount equal to 80 percent of the building permit fee actually paid for
such permit. The Building Official shall determine, in such official's discretion, whether an
applicant is qualified to receive a refund. After 12 months have elapsed from the date of
the issuance of the permit, no permit fees shall be refunded. In the event subsequent
application for a permit is made by a person who has received a refund, the full amount of
all required fees shall be paid as elsewhere provided in this chapter.
Exception:
1. If a permit has been issued for a project located in an area outside the jurisdiction
of the City, 100 percent of the permit and plan checking fee may be refunded.
2. If a duplicate permit has been erroneously issued, 100 percent of the duplicated
permit and plan checking fee may be refunded.
Section 109.7 of Chapter 1 of the CBC is added to read as follows:
109.7 Re -inspections.
A re -inspection fee in the amount set by City Council resolution may be assessed for each
inspection or re -inspection when such portion of work for which inspection is called is
incomplete or when required corrections are not made. This section is not to be
interpreted as requiring re -inspection fees the first time a job is rejected for failure to
comply with the requirements of this code, but as controlling the practice of calling for
inspections before the job is ready for such inspection or re- inspection. Re -inspection
fees may be assessed when the inspection record card is not posted or otherwise
available on the work site, the approved plans are not readily available to the inspector,
for failure to provide access on the date for which inspection is requested, or for deviating
from plans requiring the approval of the building official. In instances where re -inspection
fees have been assessed, no additional inspection of the work will be performed until
required fees have been paid.
Section 110.1.1 of Chapter 1 of the CBC is added to read as follows:
110.1.1 Setback Certification required.
A California State licensed surveyor is required to certify the location and setbacks of all
new construction prior to the first foundation inspection. A copy of the certification shall
be available to the Building Division inspector for the job file prior to the first inspection.
Exception: Wherever there are practical difficulties involved in carrying out the provisions
of this section, the Building Official shall have the authority to grant modifications for
individual cases.
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Section 113.3 of Chapter 1 of the CBC is amended to read as follows:
113.3 Board of Appeals.
The board of appeals consists of members of the Planning Commission. The term of a
board of appeals member will coincide with the term of service as a Planning
Commissioner and will terminate should the member cease serving as a Planning
Commissioner. The building official is the secretary to the board. The board may adopt
reasonable rules and regulations for conducting its investigations and will render all its
decisions and findings on contested matters, in writing to the building official, with a
duplicate copy for any appellant or contestant affected by such decision or finding and
may recommend to the City Council appropriate new legislation.
Three members of the board constitute a quorum. The Planning Chairperson is the board's
chairperson and in the chairperson's absence the board will select a temporary
chairperson.
The city will assess a filing fee set by City Council resolution, or a higher amount set by
resolution, at the time that an appellant file appeal of any order, decisions, or
determination made by the building official relative to the application and interpretation of
this code. The filing fee is refundable should the appellant prevail in a decision by the
board. The appeal must be taken by filing a written notice of appeal, in letterform, to the
board of appeals. The board's decision constitutes the city's final decision.
Section 202 of Chapter 2 of the CBC, a new definition is added to read as follows:
MID -RISE BUILDING. A building four or more stories high but not exceeding 75 feet in
height and notdefined as a high-rise building by section 202 of the California Building Code.
Height measurements shall be made from the underside of the roof or floor above the
topmost space that may be occupied to the lowest fire apparatus access road level.
Section 456 of Chapter 4 of the CBC is added to read as follows:
Section 456 Mid -Rise Buildings.
The provisions of this section shall apply to buildings or structures defined in Section 202
as mid -rise buildings. All mid -rise buildings shall meet the requirements of Section 918 of
the El Segundo Fire Code and any other applicable fire and life safety provisions.
Section 903.2 of Chapter 9 of the CBC is amended and Sections 903.2.1 through 903.2.21
are deleted, to read as follows:
903.2 Where Required.
A. New Buildings. Unless otherwise prohibited by law, an approved automatic
sprinkler system in new buildings and structures shall be required for all
occupancies.
Exception: New detached buildings under one thousand (1,000) square feet
subject to approval of the Building Official or Fire Official.
Ordinance No. 1680
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B. Existing Buildings. Unless otherwise prohibited by law, any work to an existing
building which removes more than fifty percent (50%) of the exterior perimeter wall
height as defined in ESMC 15-1-6 for additions and alterations will require the
existing building to be fully sprinklered throughout.
Section 903.2.22 of Chapter 9 of the CBC is added to read as follows:
903.2.22 Structures in the Smoky Hollow Specific Plan Area. An automatic sprinkler
system must be provided throughout every facility or building hereafter constructed within
the Smoky Hollow Specific Plan Area.
903.2.22.1 Existing Buildings.
Unless otherwise prohibited by law, any work to an existing building which removes more
than fifty percent (50%) of the exterior perimeter wall height as defined in ESMC 15-1-6
for additions and alterations will require the existing building to be fully sprinklered
throughout.
Section 903.3.5.3 of Chapter 9 of the CBC is added to read as follows:
903.3.5.3 Hydraulically calculated systems.
The design of hydraulically calculated fire sprinkler systems shall not exceed 90% of the
water supply capacity.
Section 903.3.8 of Chapter 9 of the CBC is deleted in its entirety and replaced to read as
follows:
903.3.8 Limited Area Sprinkler Systems.
When a fire sprinkler system is required, it shall be provided throughout the building.
Exception: Protection for specific appliances and/or hazards.
Section 903.3.10 of Chapter 9 of the CBC is amended to read as follows:
903.3.10 Floor Control Valves.
Floor control valves and waterflow detection assemblies shall be installed at each floor
where any of the following occur:
1. Buildings where the floor level of the highest story is located more than 30 feet
above the lowest level of fire department vehicle access.
2. Buildings that are three or more stories in height.
3. Buildings that are two or more stories below the highest level of fire department
access.
Ordinance No. 1680
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Exception: Group R-2 and R-3.1 occupancies floor control valves and water flow
detection assemblies shall not be required.
Section 909.11 of Chapter 9 of the CBC is deleted in its entirety and replaced to read as
follows:
909.11 General.
The smoke -control system shall be supplied with two sources of power. Primary power
shall be from the normal building power systems. Secondary power shall be from an
approved standby source complying Section 1203 of this code. The standby power
source and its transfer switches shall be in a room separate from the normal power
transformers and switchgear and ventilated directly to and from the exterior. The room
shall be enclosed with not less than 1- hour fire barriers constructed in accordance with
Section 707 or horizontal assemblies constructed in accordance with Section 712, or
both.
Transfer to full standby power shall be automatic and within 60 seconds of failure of the
primary power. The systems shall comply with the City of El Segundo Electrical Code.
Exception: The secondary power is not required for pressurized enclosures in buildings
of less than 5 floors used for human occupancy.
Section 1206.6 is added to Chapter 12 of the 2025 Edition of the CBC to read as follows:
1206.6: RESIDENTIAL NOISE INSULATION STANDARDS (Airport Noise Sources)
1206.6.01 Noise Insulation Requirements for New Construction.
1206.6.02 Purpose and Scope. The purpose of this section is to establish minimum
noise insulation performance standards for new residential dwelling units and additions of
habitable rooms to existing residential dwelling units to protect public health, safety, and
welfare from the effects of excessive noise, including without limitation, indoor quality of
life, speech interference, and sleep disruption.
1206.6.03 Applicability.
This section applies to all newly constructed residences and habitable room additions to
existing residence
1206.6.04 Definitions.
For purposes of this section, the following words must have the following meaning:
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"Community Noise Equivalent Level (CNEL)" means the noise measure defined in 21
Code of California Regulations § 5001(d), and any successor regulation or amendment.
"Habitable Room" means a room that is a space in a structure for living, sleeping, eating,
or cooking. Bathrooms, toilet compartments, closets, halls, storage or utility space,
garages, and similar areas are not considered habitable space.
"LAX" means Los Angeles International Airport.
"Noise Impact Boundary for LAX" means the area around LAX as defined in 21
California code of regulations § 5001(1), and any successor regulation or amendment.
The city's building safety department must at all times maintain a current map of the noise
impact boundary. The latest published map by LAWA located at the Building Safety
Counter shall be used as the basis for determination.
"Residence" means any occupancy group R building as used in El Segundo title 13 of
the El Segundo municipal code.
1206.6.05 Standards.
Any new residence or addition of one or more habitable rooms to an existing residence
that is within the noise impact boundary for LAX must be designed to ensure that internal
noise levels due to LAX do not exceed 45 dB CNEL. This standard may be satisfied in
two ways: (1) by performing the acoustical analysis described in section 1206.6.06,
below, or (2) by employing the prescribed construction methods described in section
1206.6.07, below.
1206.6.06: Acoustical Analysis.
A building permit application for a new residence or addition of one or more habitable
rooms to an existing residence must comply with the minimum noise insulation
performance standards established in this section if it includes an acoustical analysis
demonstrating that the proposed design will ensure that internal noise levels due to LAX
aircraft noise will not exceed 45 dB CNEL. The acoustical analysis shall be proven to
meet the standard by providing post- construction/pre-occupancy acoustic measurement
to verify compliance with the 45 dB CNEL standard. The Building Official has the
discretion to implement policies that meet the intent of this code section.
A. The acoustical analysis must be prepared by a person experienced in the field of
acoustical engineering. The analysis must consider and include: the topographical
relationship between LAX aircraft noise sources and the dwelling site, the
characteristics of those noise sources, predicted noise spectra and levels at the
exterior of the dwelling site, the basis for this prediction (measured or obtained from
published data), the noise insulation measures to be employed, and the
effectiveness of the proposed noise insulation measures.
B. If the interior allowable noise levels are to be met by requiring that windows be
unopenable or closed, the design for the structure must also specify a ventilation
or air-conditioning system to provide a habitable interior environment, having at
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least 2 air exchanges per hour for the affected rooms. The ventilation system must
not compromise the interior room noise reduction.
1206.6.07 Prescribed Construction Methods.
A building permit application for a new residence or addition of one or more habitable
rooms to an existing residence must comply with the minimum noise insulation
performance standards established in this section if the design incorporates the following
construction methods.
Construction Methods in the 70 dB CNEL and Greater Noise Zone
1206.6.08 Exterior Walls.
New walls that form the exterior portion of habitable rooms must be constructed as follows:
A. Studs must be at least 4 inches in nominal depth.
B. Exterior finish must be stucco, minimum /g-inch thickness, brick veneer, masonry,
or any siding material allowed by this code. Wood or metal siding must be installed
over Y2-inch minimum solid sheathing.
C. Masonry walls with a surface weight of less than 40 pounds per square foot must
require an interior supporting stud -wall that is finished with at least 5/8-inch thick
gypsum wall board or plaster.
D. Wall insulation must be at least R-11 glass fiber or mineral wool and must be installed
continuously throughout the stud space.
E. Exterior solid sheathing must be covered with overlapping asphalt felt.
F. Interior wall finsh must be at least 5/8-inch thick gypsum wall board or 5/8-inch thick
gypsum wall board or plaster.
1206.6.09 Exterior Windows.
A. Openable Windows: All openable windows in the exterior walls of habitable rooms
must have a laboratory sound transmission class rating of at least STC 40 dB and
must have an air infiltration rate of no more than 0.5 cubic feet per minute when
tested according to ASTM E-283.
B. Fixed Windows: All fixed windows in the exterior walls of habitable rooms must:
1. Have a sound transmission class rating of at least STC 40 dB, or
2. Must be 5/8-inch laminated glass with STC rating of 40 dB and must be set
in non -hardening glazing materials, or
3. Must be glass block at least 3Y2 inches thick.
C. The total areas of glazing in rooms used for sleeping must not exceed 20% of the
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Page 9 of 87
wall area.
1206.6.10 Exterior Doors.
A. Exterior hinged doors to habitable rooms that are directly exposed to aircraft noise
and are facing the source of the noise must be a door and edge seal assembly
that has a laboratory sound transmission class of at least STC 40 dB.
B. Exterior hinged doors to habitable rooms that are not directly exposed to aircraft
noise and do not face the source of the noise must have a minimum STC rating of
35 dB.
C. Sliding glass doors in habitable rooms must not be allowed in walls that are directly
exposed to aircraft noise. Sliding glass doors in walls that are not directly exposed
must have an STC rating of at least 40 dB.
D. Access doors from attached garage to the interior of a residence must have an STC
rating of at least 30 dB.
1206.6.11 Roof/Ceiling Construction.
A. Roof rafters must have a minimum slope of 4:12 and must be covered on their top
surface with minimum Y2-inch solid sheathing and any roof covering allowed by this
code.
B. Attic insulation must be batt or blow-in glass fiber or mineral wool with a minimum
R-30 rating applied between the ceiling joists.
C. Attic ventilation must be:
Gable vents or vents that penetrate the roof surface that are fitted with
transfer ducts at least 6 feet in length that are insulating flexible ducting or
metal ducts containing internal 1-inch thick coated fiberglass sound
absorbing duct liner. Each duct must have a lined 90-degree bend in the
duct so that there is no direct line of sight from the exterior through the duct
into the attic, or
2. Noise control louver vents, or
3. Eave vents that are located under the eave overhang.
4. Ceilings must be finished with gypsum board or plaster that is at least 5/8-
inch thick. Ceiling materials must be mounted on resilient channels.
5. Skylights must penetrate the ceiling by means of a completely enclosed light
well that extends from the roof opening to the ceiling opening. A secondary
openable glazing panel must be mounted at the ceiling line or at any point
that provides at least a 4-inch space between the skylight glazing and the
secondary glazing and must be glazed with at least 3/16-inch plastic or
laminated glass. The weather -side skylight must be any type that is
permitted by the building code. The size of skylights must be no more than
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20 percent of the roof area of the room.
1206.6.12 Ventilation.
A. A ventilation system must be provided that will provide at least the minimum air
circulation and fresh air supply requirements of this code in each habitable room
without opening any window, door or other opening to the exterior. All concealed
ductwork must be insulated flexible glass fiber ducting that is at least 10 feet long
between any two points of connection.
B. Kitchen cooktop vent hoods must be the non -ducted recirculating type with no
ducted connection to the exterior.
1206.6.13 Fireplaces.
Each fireplace must be fitted with a damper at the top of the chimney that is operated
from the firebox and must have glass doors across the front of the firebox.
1206.6.14 Wall and Ceiling Openings.
Openings in the shell of the residence that degrade its ability to achieve an interior CNEL
rating of 45 dB or less when all doors and windows are closed are prohibited unless access
panels, pet doors, mail delivery drops, air-conditioning, or other openings are designed to
maintain the 45 dB CNEL (or less) standard in the room to which they provide access.
Construction Methods In The 65 dB CNEL To 70 dB CNEL Noise Zone
1206.6.15 Exterior Walls.
New walls that form the exterior portion of habitable rooms must be constructed as follows:
A. Studs must be at least 4 inches in nominal depth.
B. Exterior finish must be stucco, minimum'/8-inch thickness, brick veneer, masonry,
or any siding material allowed by this code. Wood or metal siding must be installed
over 1/2-inch solid sheathing.
C. Masonry walls with a surface weight of less than 40 pounds per square foot will
require an interior studwall that is finished with at least 5/8-inch thick gypsum
wallboard or plaster.
D. Wall insulation must be at least R-11 glass fiber or mineral wool and must be installed
continuously throughout the stud space.
E. Exterior solid sheathing must be covered with overlapping asphalt felt.
F. Interior wall finish must be at least 5/8-inch thick gypsum wallboard or plaster.
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1206.6.16 Exterior Windows.
A. Openable Windows: All openable windows in the exterior walls of habitable rooms
must have a laboratory sound transmission class rating of at least STC 35 dB and
must have an air infiltration rate of no more than 0.5 cubic feet per m i n u to when
tested according to ASTM E-283.
B. Fixed Windows: All fixed windows in the exterior walls of habitable rooms must be
at least %-inch thick and must be set in non -hardening glazing materials.
C. The total area of glazing in rooms used for sleeping must not exceed 20% of the
floor area.
1206.6.17 Exterior Doors.
A. Exterior hinged doors to habitable rooms that are directly exposed to aircraft noise
and are facing the source of the noise must be a door and edge seal assembly
that has a laboratory sound transmission class of at least STC 35 dB.
B. Exterior hinged doors to habitable rooms that are not directly exposed to aircraft
noise and do not face the source of the noise must have a minimum STC rating of
30 dB
C. Sliding glass doors in habitable rooms must have glass that is 1/4-inch thick.
D. Access doors from a garage to a habitable room must have an STC rating of at
least 30 dB.
1206.6.18 Roof Ceiling Construction.
A. Roof rafters must have a minimum slope of 4:12 and must be covered on their top
surface with minimum 1/2-inch solid sheathing and any roof covering allowed by
this code
B. Attic insulation must be batt or blow-in glass fiber or mineral wool with a minimum
R-30 rating applied between the ceiling joists.
C. Attic ventilation must be:
1. Gable vents or vents that penetrate the roof surface that are fitted with
transfer ducts at least 6 feet in length that are insulating flexible ducting or
metal ducts containing internal 1-inch thick coated fiberglass sound
absorbing duct liner. Each duct must have a lined 90-degree bend in the
duct so that there is no direct line of sight from the exterior through the duct
into the attic, or
2. Noise control louver vents, or
3. Eave vents that are located under the eave overhang.
4. Ceilings must be finished with gypsum board or plaster that is at least 5/8-
inch thick.
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5. Skylights must penetrate the ceiling by means of a completely enclosed light
well that extends from the roof opening to the ceiling opening. A secondary
openable glazing panel must be mounted at the ceiling line and must be
glazed with at least 3/16-inch plastic, tempered or laminated glass. The
weather -side skylight must be any type that is permitted bythe building code.
1206.6.19 Floors.
The floor of the lowest habitable rooms must be concrete slab on grade or wood framed
floors.
1206.6.20 Ventilation.
A. A ventilation system must be provided that will provide at least the minimum air
circulation and fresh air supply requirements of at least 2 air exchanges in each
affected habitable room without opening any window, door or other opening to the
exterior. All concealed ductwork must be insulated flexible glass fiber ducting that
is at least 10 feet long between any two points of connection.
B. Kitchen cooktop vent hoods must be the non -ducted recirculating type with no
ducted connection to the exterior.
1206.6.21 Fireplaces.
Each fireplace must be fitted with a damper at the top of the chimney that is operated
from the firebox and must have glass doors across the front of the firebox.
1206.6.22 Wall and Ceiling Openings.
Openings in the shell of the residence that degrade its ability to achieve an interior CNEL
rating of 45 dB or less when all doors and windows are closed are prohibited. Any access
panels, pet doors, mail delivery drops, air-conditioning, or other openings must be
designed to maintain the 45 dB CNEL or less standard in the room to which they provide
access.
Section 1507.3.1 of the 2022 CBC is amended to read as follows:
1507.3.1 Deck requirements.
Concrete and clay tile shall be installed only over solid -structural sheathing boards.
Section 1613.8 is added to Chapter 16 of the 2025 CBC to read as follows:
1613.8 Amendments to ASCE 7.
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The provisions of Section 1613.8 shall be permitted as an amendment to the relevant
provisions of ASCE 7.
Section 1613.8.1 is added to Chapter 16 of the 2025 CBC to read as follows:
1613.8.1 Values for Vertical Combinations.
Modify ASCE 7 Section 12.2.3.1 Exception 3 as follows:
3. Detached one- and two-family dwellings up to two stories in height of light frame
construction.
Section 1613.8.2 is added to Chapter 16 of the 2025 CBC to read as follows:
1613.8.2 Wood Diaphragms.
Modify ASCE 7 Section 12.11.2.2.3 as follows:
12.11.2.2.3 Wood Diaphragms.
The anchorage of concrete or masonry structural walls to wood diaphragms shall be in
accordance with AWC SDPWS 4.1.5.1 and this section. Continuous ties required by this
section shall be in addition to the diaphragm sheathing. , the
'i -seat • i t - g Anchorage shall not be
accomplished by use of toe nails or nails subject to withdrawal, nor shall wood ledgers or
framing be used in cross -grain bending or cross -grain tension. The diaphragm sheathing
shall not be considered effective as providing ties or struts required by this section.
For structures assigned to Seismic Design Category D, E or F, wood diaphragms
supporting concrete or masonry walls shall comply with the following:
The spacing of continuous ties shall not exceed 40 feet. Added chords of
diaphragms may be used to form sub diaphragms to transmit the anchorage forces
to the main continuous crossties.
2. The maximum diaphragm shear used to determine the depth of the subdiaphragm
shall not exceed 75% of the maximum diaphragm shear.
Section 1613.8.3 is added to Chapter 16 of the 2025 CBC to read as follows:
1613.8.3 Structural Separation.
Modify ASCE 7 Section 12.12.3 Equation 12.12-1 as follows:
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CdS=-
12-12-1
Section 1613.9 is added to Chapter 16 of the 2025 CBC to read as follows:
1613.9 Seismic Design Provisions for Hillside Buildings.
1613.9.1 Purpose.
The purpose of this section is to establish minimum regulations for the design and
construction of new buildings and additions to existing buildings when constructing such
buildings on or into slopes steeper than one unit vertical in three units horizontal (33.3%).
These regulations establish minimum standards for seismic force resistance to reduce
the risk of injury or loss of life in the event of earthquakes.
1613.9.2 Scope.
The provisions of this section shall apply to the design of the lateral -force -resisting system
for hillside buildings at and below the base level diaphragm. The design of the lateral -
force -resisting system above the base level diaphragm shall be in accordance with the
provisions for seismic and wind design as required elsewhere in this division.
Exception: Non -habitable accessory buildings and decks not supporting or supported
from the main building are exempt from these regulations.
1613.9.3 Definitions.
For the purposes of this section certain terms are defined as follows:
BASE LEVEL DIAPHRAGM is the floor at, or closest to, the top of the highest level of
the foundation.
DIAPHRAGM ANCHORS are assemblies that connect a diaphragm to the adjacent
foundation at the uphill diaphragm edge.
DOWNHILL DIRECTION is the descending direction of the slope approximately
perpendicular to the slope contours.
FOUNDATION is concrete or masonry which supports a building, including footings, stem
walls, retaining walls, and grade beams.
FOUNDATION EXTENDING IN THE DOWNHILL DIRECTION is a foundation running
downhill and approximately perpendicular to the uphill foundation.
Ordinance No. 1680
Page 15 of 87
HILLSIDE BUILDING is any building or portion thereof constructed on or into a slope
steeper than one unit vertical in three units horizontal (33.3%). If only a portion of the
building is supported on or into the slope, these regulations apply to the entire building.
PRIMARY ANCHORS are diaphragm anchors designed for and providing a direct
connection as described in Sections 1613.9.5 and 1613.9.7.3 between the diaphragm
and the uphill foundation.
SECONDARY ANCHORS are diaphragm anchors designed for and providing a
redundant diaphragm to foundation connection, as described in Sections 1613.9.6 and
1613.9.7.4.
UPHILL DIAPHRAGM EDGE is the edge of the diaphragm adjacent and closest to the
highest ground level at the perimeter of the diaphragm.
UPHILL FOUNDATION is the foundation parallel and closest to the uphill diaphragm
edge.
1613.9.4 Analysis and Design.
1613.9.4.1 General.
Every hillside building within the scope of this section shall be analyzed, designed, and
constructed in accordance with the provisions of this division. When the code -prescribed
wind design produces greater effects, the wind design shall govern, but detailing
requirements and limitations prescribed in this and referenced sections shall be followed.
1613.9.4.2 Base Level Diaphragm -Downhill Direction.
The following provisions shall apply to the seismic analysis and design of the connections
for the base level diaphragm in the downhill direction.
1613.9.4.2.1 Base for Lateral Force Design Defined.
For seismic forces acting in the downhill direction, the base of the building shall be the
floor at or closest to the top of the highest level of the foundation.
1613.9.4.2.2 Base Shear.
In developing the base shear for seismic design, the response modification coefficient (R)
shall not exceed 5 for bearing wall and building frame systems. The total base shear shall
include the forces tributary to the base level diaphragm including forces from the base
level diaphragm.
1613.9.5 Base Shear Resistance -Primary Anchors.
Ordinance No. 1680
Page 16 of 87
1613.9.5.1 General.
The base shear in the downhill direction shall be resisted through primary anchors from
diaphragm struts provided in the base level diaphragm to the foundation.
1613.9.5.2 Location of Primary Anchors.
A primary anchor and diaphragm strut shall be provided in line with each foundation
extending in the downhill direction. Primary anchors and diaphragm struts shall also be
provided where interior vertical lateral -force -resisting elements occur above and in
contact with the base level diaphragm. The spacing of primary anchors and diaphragm
struts or collectors shall in no case exceed 30 feet (9144 mm).
1613.9.5.3 Design of Primary Anchors and Diaphragm Struts.
Primary anchors and diaphragm struts shall be designed in accordance with the
requirements of Section 1613.6.8.
1613.9.5.4 Limitations.
The following lateral -force -resisting elements shall not be designed to resist seismic
forces below the base level diaphragm in the downhill direction:
1. Wood structural panel wall sheathing,
2. Cement plaster and lath,
3. Gypsum wallboard, and
4. Tension only braced frames.
Braced frames designed in accordance with the requirements of Section 2205.2.1.2 may
be used to transfer forces from the primary anchors and diaphragm struts to the
foundation provided lateral forces do not induce flexural stresses in any member of the
frame or in the diaphragm struts. Deflections of frames shall account for the variation in
slope of diagonal members when the frame is not rectangular.
1613.9.6 Base Shear Resistance -Secondary Anchors.
1613.9.6.1 General.
In addition to the primary anchors required by Section 1613�5 1613.6.5, the base shear
in the downhill direction shall be resisted through secondary anchors in the uphill
foundation connected to diaphragm struts in the base level diaphragm.
Exception: Secondary anchors are not required where foundations extending in the
downhill direction spaced at not more than 30 feet (9144 mm) on center extend up to and
are directly connected to the base level diaphragm for at least 70% of the diaphragm
depth.
Ordinance No. 1680
Page 17 of 87
1613.9.6.2 Secondary Anchor Capacity and Spacing.
Secondary anchors at the base level diaphragm shall be designed for a minimum force
equal to the base shear, including forces tributary to the base level diaphragm, but not
less than 600 pounds per lineal foot (8.76 kN/m) based on Allowable Stress Design (ASD)
levels. The secondary anchors shall be uniformly distributed along the uphill diaphragm
edge and shall be spaced a maximum of 4 feet (1219 mm) on center.
1613.9.6.3 Design.
Secondary anchors and diaphragm struts shall be designed in accordance with Section
1613.9.8.
1613.9.7 Diaphragms below the Base Level -Downhill Direction.
The following provisions shall apply to the lateral analysis and design of the connections
for all diaphragms below the base level diaphragm in the downhill direction.
1613.9.7.1 Diaphragm Defined.
Every floor level below the base level diaphragm shall be designed as a diaphragm.
1613.9.7.2 Design Force.
Each diaphragm below the base level diaphragm shall be designed for all tributary loads
at that level using a minimum seismic force factor not less than the base shear coefficient.
1613.9.7.3 Design Force Resistance -Primary Anchors.
The design force described in Section 1613.9.7.2 shall be resisted through primary
anchors from diaphragm struts provided in each diaphragm to the foundation. Primary
anchors shall be provided and designed in accordance with the requirements and
limitations of Section 1613.9.5.
1613.9.7.4.1 General.
In addition to the primary anchors required in Section 1613.9.7.3, the design force in the
downhill direction shall be resisted through secondary anchors in the uphill foundation
connected to diaphragm struts in each diaphragm below the base level.
Exception: Secondary anchors are not required where foundations extending in the
downhill direction, spaced at not more than 30 feet (9144 mm) on center, extend up to
and are directly connected to each diaphragm below the base level for at least 70% of
Ordinance No. 1680
Page 18 of 87
the diaphragm depth.
1613.9.7.4.2 Secondary Anchor Capacity.
Secondary anchors at each diaphragm below the base level diaphragm shall be designed
for a minimum force equal to the design force but not less than 300 pounds per lineal foot
(4.38 kN/m) based on Allowable Stress Design (ASD) levels. The secondary anchors
shall be uniformly distributed along the uphill diaphragm edge and shall be spaced a
maximum of 4 feet (1219 mm) on center.
1613.9.7.4.3 Design.
Secondary anchors and diaphragm struts shall be designed in accordance with Section
1613.9.8.
1613.9.8 Primary and Secondary Anchorage and Diaphragm Strut Design.
Primary and secondary anchors and diaphragm struts shall be designed in accordance
with the following provisions:
1. Fasteners. All bolted fasteners used to develop connections to wood members
shall be provided with square plate washers at all bolt heads and nuts. Washers
shall be minimum 0.229 inch by 3 inches by 3 inches (5.82 mm by 76 mm by 76
mm) in size. Nuts shall be tightened to finger tight plus one half (1/2) wrench turn
prior to covering the framing.
2. Fastening. The diaphragm to foundation anchorage shall not be accomplished by
the use of toenailing, nails subject to withdrawal, or wood in cross -grain bending
or cross -grain tension.
3. Size of Wood Members. Wood diaphragm struts collectors, and other wood
members connected to primary anchors shall not be less than 3 inch (76 mm)
nominal width. The effects of eccentricity on wood members shall be evaluated as
required per Item 9.
4. Design. Primary and secondary anchorage, including diaphragm struts, splices,
and collectors shall be designed for 125% of the tributary force.
5. Allowable Stress Increase. The one-third allowable stress increase permitted
under Section 1605.3.2 shall not be taken when the working (allowable) stress
design method is used.
6. Steel Element of Structural Wall Anchorage System. The strength design forces
for steel elements of the structural wall anchorage system, with the exception of
anchor bolts and reinforcing steel, shall be increased by 1.4 times the forces
otherwise required.
7. Primary Anchors. The load path for primary anchors and diaphragm struts shall be
fully developed into the diaphragm and into the foundation. The foundation must
Ordinance No. 1680
Page 19 of 87
be shown to be adequate to resist the concentrated loads from the primary
anchors.
8. Secondary Anchors. The load path for secondary anchors and diaphragm struts
shall be fully developed in the diaphragm but need not be developed beyond the
connection to the foundation.
9. Symmetry. All lateral force foundation anchorage and diaphragm strut connections
shall be symmetrical. Eccentric connections may be permitted when demonstrated
by calculation or tests that all components of force have been provided for in the
structural analysis or tests.
10. Wood Ledgers. Wood ledgers shall not be used to resist cross -grain bending or
cross -grain tension.
1613.9.9 Lateral -Force -Resisting Elements Normal to the Downhill Direction.
1613.9.9.1 General.
In the direction normal to the downhill direction, lateral -force -resisting elements shall be
designed in accordance with the requirements of this section.
1613.9.9.2 Base Shear.
In developing the base shear for seismic design, the response modification coefficient (R)
shall not exceed 5 for bearing wall and building frame systems.
1613.9.9.3 Vertical Distribution of Seismic Forces.
For seismic forces acting normal to the downhill direction the distribution of seismic forces
over the height of the building using Section 12.8.3 of ASCE 7 shall be determined using
the height measured from the top of the lowest level of the building foundation.
1613.9.9.4 Drift Limitations.
The story drift below the base level diaphragm shall not exceed 0.007 times the story
height at strength design force level. The total drift from the base level diaphragm to the
top of the foundation shall not exceed 3/4 inch (19 mm). Where the story height or the
height from the base level diaphragm to the top of the foundation varies because of a
stepped footing or story offset, the height shall be measured from the average height of
the top of the foundation. The story drift shall not be reduced by the effect of horizontal
diaphragm stiffness.
1613.9.9.5 Distribution of Lateral Forces.
Ordinance No. 1680
Page 20 of 87
1613.9.9.5.1 General.
The design lateral force shall be distributed to lateral -force -resisting elements of varying
heights in accordance with the stiffness of each individual element.
1613.9.9.5.2 Wood Structural Panel Sheathed Walls.
The stiffness of a stepped wood structural panel shear wall may be determined by dividing
the wall into adjacent rectangular elements, subject to the same top of wall deflection.
Deflections of shear walls may be estimated by AWC SDPWS Section 4.3.2. Sheathing
and fastening requirements for the stiffest section shall be used for the entire wall. Each
section of wall shall be anchored for shear and uplift at each step. The minimum horizontal
length of a step shall be 8 feet (2438 mm) and the maximum vertical height of a step shall
be 2 feet 8 inches (813 mm).
1613.9.9.5.3 Reinforced Concrete or Masonry Shear Walls.
Reinforced concrete or masonry shear walls shall have forces distributed in proportion to
the rigidity of each section of the wall.
1613.9.9.6 Limitations.
The following lateral force -resisting -elements shall not be designed to resist lateral forces
below the base level diaphragm in the direction normal to the downhill direction:
1. Cement plaster and lath,
2. Gypsum wallboard, and
3. Tension -only braced frames.
Braced frames designed in accordance with the requirements of Section 2205.2.1.2 of
this Code may be designed as lateral -force -resisting elements in the direction normal to
the downhill direction, provided lateral forces do not induce flexural stresses in any
member of the frame. Deflections of frames shall account for the variation in slope of
diagonal members when the frame is not rectangular.
1613.9.10 Specific Design Provisions.
1613.9.10.1 Footings and Grade Beams.
All footings and grade beams shall comply with the following:
1. Grade beams shall extend at least 12 inches (305 mm) below the lowest adjacent
grade and provide a minimum 24 inch (610 mm) distance horizontally from the
bottom outside face of the grade beam to the face of the descending slope.
2. Continuous footings shall be reinforced with at least two No. 4 reinforcing bars at
the top and two No. 4 reinforcing bars at the bottom.
Ordinance No. 1680
Page 21 of 87
3. All main footing and grade beam reinforcement steel shall be bent into the
intersecting footing and fully developed around each corner and intersection.
4. All concrete stem walls shall extend from the foundation and reinforced as required
for concrete or masonry walls.
1613.9.10.2 Protection against Decay and Termites.
All wood to earth separation shall comply with the following:
1. Where a footing or grade beam extends across a descending slope, the stem wall,
grade beam, or footing shall extend up to a minimum 18 inches (457 mm) above
the highest adjacent grade.
Exception: At paved garage and doorway entrances to the building, the stem wall need
only extend to the finished concrete slab, provided the wood framing is protected with a
moisture proof barrier.
2. Wood ledgers supporting a vertical load of more than 100 pounds per lineal foot
(1.46 kN/m) based on Allowable Stress Design (ASD) levels and located within 48
inches (1219 mm) of adjacent grade are prohibited. Galvanized steel ledgers and
anchor bolts, with or without wood nailers, or treated or decay resistant sill plates
supported on a concrete or masonry seat, may be used.
1613.9.10.3 Sill Plates.
All sill plates and anchorage shall comply with the following:
1. All wood framed walls, including nonbearing walls, when resting on a footing,
foundation, or grade beam stem wall, shall be supported on wood sill plates
bearing on a level surface.
2. Power -driven fasteners shall not be used to anchor sill plates except at interior
nonbearing walls not designed as shear walls.
1613.9.10.4 Column Base Plate Anchorage.
The base of isolated wood posts (not framed into a stud wall) supporting a vertical load
of 4,000 pounds (17.8 kN) based on Allowable Stress Design (ASD) levels or more and
the base plate for a steel column shall comply with the following:
1. When the post or column is supported on a pedestal extending above the top of a
footing or grade beam, the pedestal shall be designed and reinforced as required
for concrete or masonry columns. The pedestal shall be reinforced with a minimum
of four No. 4 bars extending to the bottom of the footing or grade beam. The top of
exterior pedestals shall be sloped for positive drainage.
2. The base plate anchor bolts or the embedded portion of the post base, and the
vertical reinforcing bars for the pedestal, shall be confined with two No. 4 or three
No. 3 ties within the top 5 inches (127 mm) of the concrete or masonry pedestal.
Ordinance No. 1680
Page 22 of 87
The base plate anchor bolts shall be embedded a minimum of 20 bolt diameters
into the concrete or masonry pedestal. The base plate anchor bolts and post bases
shall be galvanized and each anchor bolt shall have at least 2 galvanized nuts
above the base plate.
1613.9.10.5 Steel Beam to Column Supports.
All steel beam to column supports shall be positively braced in each direction. Steel
beams shall have stiffener plates installed on each side of the beam web at the column.
The stiffener plates shall be welded to each beam flange and the beam web. Each brace
connection or structural member shall consist of at least two 5/8 inch (15.9 mm) diameter
machine bolts.
Section 1613.10 is added to Chapter 16 of the 2025 CBC to read as follows:
1613.10 Suspended Ceilings.
Minimum design and installation standards for suspended ceilings shall be determined in
accordance with the requirements of Section 2506.2.1 of this Code and this section.
1613.10.1 Scope.
This part contains special requirements for suspended ceilings and lighting systems.:
Provisions of Section 13.5.6 of ASCE 7 shall apply except as modified herein.
1613.10.2 General.
The suspended ceilings and lighting systems shall be limited to 6 feet (1828 mm) below
the structural deck unless the lateral bracing is designed by a licensed engineer or
architect.
1613.10.3 Sprinkler Heads.
All sprinkler heads (drops) except fire -resistance -rated floor/ceiling or roof/ceiling
assemblies, shall be designed to allow for free movement of the sprinkler pipes with
oversize rings, sleeves or adaptors through the ceiling tile. Sprinkler heads and other
penetrations shall have a 2 inch (50mm) oversize ring, sleeve, or adapter through the
ceiling tile to allow for free movement of at least 1 inch (25mm) in all horizontal directions.
Alternatively, a swing joint that can accommodate 1 inch (25 mm) of ceiling movement in
all horizontal directions is permitted to be provided at the top of the sprinkler head
extension.
Sprinkler heads penetrating fire -resistance -rated floor/ceiling or roof/ceiling assemblies
shall comply with Section 714 of this Code.
Ordinance No. 1680
Page 23 of 87
1613.10.4 Special Requirements for Means of Egress.
Suspended ceiling assemblies located along means of egress serving an occupant load
of 30 or more shall comply with the following provisions.
1613.10.4.1 General.
Ceiling suspension systems shall be connected and braced with vertical hangers attached
directly to the structural deck along the means of egress serving an occupant load of 30
or more and at lobbies accessory to Group A Occupancies. Spacing of vertical hangers
shall not exceed 2 feet (610 mm) on center along the entire length of the suspended
ceiling assembly located along the means of egress or at the lobby.
1613.10.4.2 Assembly Device.
All lay -in panels shall be secured to the suspension ceiling assembly with two hold-down
clips minimum for each tile within a 4-foot (1219 mm) radius of the exit lights and exit
signs.
1613.10.4.3 Emergency Systems.
Independent supports and braces shall be provided for light fixtures required for exit
illumination. Power supply for exit illumination shall comply with the requirements of
Section 1008.3, 1008.2.4 of this Code.
1613.10.4.4 Supports for Appendage.
Separate support from the structural deck shall be provided for all appendages such as
light fixtures, air diffusers, exit signs, and similar elements.
Section 1704.6 of the 2025 CBC is amended to read as follows:
1704.6 Structural Observations.
Where required by the provisions of Section 1704.6.1, the owner or the owner's
authorized agent shall employ a structural observer to perform structural observations.
Structural observation does not include or waive the responsibility for the inspections in
Section 110 or the special inspections in Section 1705 or other sections of this code. The
structural observer shall be one of the following individuals:
1. The registered design professional responsible for the structural design, or
2. A registered design professional designated by the registered design
professional responsible for the structural design.
Prior to the commencement of observations, the structural observer shall submit to the
Ordinance No. 1680
Page 24 of 87
building official a written statement identifying the frequency and extent of structural
observations.
The owner or owner's authorized agent shall coordinate and call a preconstruction meeting
between the structural observer, contractors, affected subcontractors and special
inspectors. The structural observer shall preside over the meeting. The purpose of the
meeting shall be to identify the major structural elements and connections that affect the
vertical and lateral load resisting systems of the structure and to review scheduling of the
required observations. A record of the meeting shall be included in the report submitted
to the Building Official.
Observed deficiencies shall be reported in writing to the owner or owner's authorized
agent, special inspector, contractor and the Building Official. Upon the form prescribed by
the Building Official, the structural observer shall submit to the Building Official a written
statement at each significant construction stage stating that the site visits have been made
and identifying any reported deficiencies which, to the best of the structural observer's
knowledge, have not been resolved. A final report by the structural observer which states
that all observed deficiencies have been resolved is required before acceptance of the
work by the Building Official.
Section 1704.6.1 of the 2025 CBC is amended to read as follows:
1704.6.1 Structural observations for seismic resistance.
Structural observations shall be provided for those structures assigned to Seismic Design
Category D, E or F, where one or more of the following conditions exist:
1. The structure is classified as Risk Category III or IV in accordance with Table
1604.5.
2. The height of the structure is greater than 75 feet (22860 mm) above the base.
3. The structure is classified as Risk Category I or II in accordance with Table 1604.5,
and a lateral design is required for the structure or portion thereof.
Exception: One-story wood framed Group R-3 and Group U Occupancies less than
2,000 square feet in area, provided the adjacent grade is not steeper than 1 unit
vertical in 10 units horizontal (10% sloped), assigned to Seismic Design Category
D.
4. When so designated by the registered design professional responsible for the
structural design.
5. When such observation is specifically required by the building official.
Section 1705.3 of the 2025 CBC is amended to read as follows:
1705.3 Concrete Construction.
The special inspections and tests for concrete construction shall be performed in
accordance with this section and Table 1705.3.
Ordinance No. 1680
Page 25 of 87
Exceptions: Special inspections and tests shall not be required for:
1. Isolated spread concrete footings of buildings three stories or less above grade
plane that are fully supported on earth or rock, where the structural design of the
footing isbased on a specified compressive strength, f'c, no greater than 2,500
pounds per square inch (psi) (17.2 Mpa) regardless of the compressive strength
specified in the construction documents or used in the footing construction.
2. Continuous concrete footings supporting walls of buildings three stories or less
above grade plane that are fully supported on earth or rock where:
2.1. The footings support walls of light -frame construction;
2.2. The footings are designed in accordance with Table 1809.7; or
2.3. The structural design of the footing is based on a specified compressive
strength, f'c, no greater than 2,500 pounds per square inch (psi) (17.2
Mpa), regardless of the compressive strength specified in the
construction documents or used in the footing construction.
3. Nonstructural concrete slabs supported directly on the ground, including
prestressed slabs on grade, where the effective prestress in the concrete is less
than 150 psi (1.03 Mpa).
3.1. Concrete patios, driveways and sidewalks, on grade.
Exception 3 of Section 1705.13 of the 2025 CBC is amended to read as follows:
1705.13 Special inspections for seismic resistance.
Special inspections for seismic resistance shall be required as specified in Sections
1705.13.1 through 1705.13.9, unless exempted by the exceptions of Section 1704.2.
Exception: The special inspections specified in Sections 1705.13.1 through 1705.13.9 are
not required for structures designed and constructed in accordance with one of the
following:
The structure consists of light -frame construction; the design spectral response
acceleration at short periods, SDS, as determined in Section 1613.2.4, does not
exceed 0.5; and the building height of the structure does not exceed 35 feet (10
668 mm)
2. The seismic force -resisting system of the structure consists of reinforced masonry
or reinforced concrete; the design spectral response acceleration at short periods,
SDS, as determined in Section 1613.2.4, does not exceed 0.5; and the building
height of the structure does not exceed 25 feet (7620 mm)
3. The structure is a detached one- or two-family dwelling not exceeding two stories
above grade plane, is not assigned to Seismic Design Category D, E or F and does
not have any of the following horizontal or vertical irregularities in accordance with
Section 12.3 of ASCE 7:
3.1. Torsional or extreme torsional irregularity.
Ordinance No. 1680
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3.2. Nonparallel systems irregularity.
3.3. Stiffness -soft story or stiffness -extreme soft story irregularity.
3.4. Discontinuity in lateral strength -weak story irregularity.
Section 1807.1.4 of the 2025 CBC is amended to read as follows:
1807.1.4 Permanent wood foundation systems.
Permanent wood foundation systems shall be designed and installed in accordance with
AWC PWF. Lumber and plywood shall be treated in accordance with AWPA U1
(Commodity Specification A, Use Category 4B and Section 5.2) and shall be identified in
accordance with Section 2303.1.9.1. Permanent wood foundation systems shall not be
used for structures assigned to Seismic Design Category D, E or F.
Section 1807.1.6 of the 2025 CBC is amended to read as follows:
1807.1.6 Prescriptive design of concrete and masonry foundation walls.
Concrete and masonry foundation walls that are laterally supported at the top and bottom
shall be permitted to be designed and constructed in accordance with this section.
Prescriptive design of foundation walls shall not be used for structures assigned to
Seismic Design Category D, E or F.
Section 1809.3 of the 2025 CBC is amended to read as follows;
1809.3 Stepped footings.
The top surface of footings shall be level. The bottom surface of footings shall be
permitted to have a slope not exceeding 1 unit vertical in 10 units horizontal (10- percent
slope). Footings shall be stepped where it is necessary to change the elevation of the top
surface of the footing or where the surface of the ground slopes more than 1 unit vertical
in 10 units horizontal (10-percent slope).
For structures assigned to Seismic Design Category D, E or F, the stepping requirement
shall also apply to the top surface of grade beams supporting walls. Footings shall be
reinforced with four No. 4 bars. Two bars shall be place at the top and bottom of the
footings as shown in Figure 1809.3.
Ordinance No. 1680
Page 27 of 87
REC01SM. a > b
D S 2'O•
MIN. 2-04 REBAR (POP & BOTTOM
B0770NI PLATE (11T.)
a ...... ,. BADE
T 'p
�1119 M1111M
STEPPED FOUNDATIONS
FIGURE 1809.3 - STEPPED FOOTING
Section 1809.7 and Table 1809.7 of the 2025 CBC are amended to read as follows:
1809.7 Prescriptive footings for light -frame construction.
Where a specific design is not provided, concrete or masonry -unit footings supporting
walls of light -frame construction shall be permitted to be designed in accordance with
Table 1809.7. Prescriptive footings in Table 1809.7 shall not exceed one story above
grade plane for structures assigned to Seismic Design Category D, E or F.
TABLE 1809.7 PRESCRIPTIVE FOOTINGS SUPPORTING WALLS OF LIGHT FRAME
CONSTRUCTION a, b, c, d, e
NUMBER OF FLOORS
SUPPORTED BY THE FOOTING f
WIDTH OF
FOOTING (inches)
THICKNESS OF
FOOTING (inches)
1
12
6
2
15
6
3
18
8
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm
a. Depth of footings shall be in accordance with Section 1809.4.
b. The ground under the floor shall be permitted to be excavated to the elevation of
the top of the footing.
c. Not Adopted.
d. See Section 1908 for additional requirements for concrete footings of structures
assigned to Seismic Design Category C, D, E or F.
Ordinance No. 1680
Page 28 of 87
e. For thickness of foundation walls, see Section 1807.1.6.
Footing shall be permitted to support a roof addition to the stipulated number of
floors. Footings supporting roof only shall be as required for supporting one floor.
g. Not Adopted.
Section 1809.12 of the 2025 CBC is amended to read as follows:
1809.12 Timber footings.
Timber footings shall be permitted for buildings of Type V construction and as otherwise
approved by the building official. Such footings shall be treated in accordance with AWPA
U1 (Commodity Specification A, Use Category 413). Treated timbers are not required
where placed entirely below permanent water level or where used as capping for wood
piles that project above the water level over submerged or marsh lands. The compressive
stresses perpendicular to grain in untreated timber footing supported upon treated piles
shall not exceed 70 percent of the allowable stresses for the species and grade of timber
as specified in the ANSI/AWC NDS. Timber footings shall not be used in structures
assigned to Seismic Design Category D, E or F.
Section 1810.3.2.4 of the 2025 CBC is amended to read as follows:
1810.3.2.4 Timber.
Timber deep foundation elements shall be designed as piles or poles in accordance with
ANSI/AWC NDS. Round timber elements shall conform to ASTM D 25. Sawn timber
elements shall conform to DOC PS-20. Timber shall not be used in structures assigned
to Seismic Design Category D, E or F.
Section 1905.1 of the 2025 CBC is amended to read as follows:
1905.1 General.
In addition to the provisions of ACI 318, structural concrete shall comply with the
requirements of Section 1905. The text of ACI 318 shall be modified as indicated in
Sections 1905.1.1 through 1905.1.11.
Section 1905.6.2 of the 2025 CBC is amended to read as follows:
1905.6.2 Seismic Design Category C, D, E, and F.
Structures assigned to Seismic Design Category C, D, E, or F shall not have elements of
structural plain concrete except as follows:
s� ..
xMM 1!� .�..
Ordinance No. 1680
Page 29 of 87
.,.. �R A.. 6r:., w. "." ..:�e than aW
- �, " N ^M
cement context of 2 sacks of Portland or M, per cubic
Z Isolated footings of plain concrete supporting pedestals or columns are
permitted, provided that the projection of the footing beyond the face of the
supported member does not exceed the footing thickness.
t' o ly +a a
Wit; th jet e f+ oti q-beyend. ' a .f suppefted
"tteM LW
3, Plain concrete footings supporting walls are permitted, provided that the
footings have at least two continuous longitudinal reinforcing bars. Bars
shall not be smaller than No. 4 and shall have a total area of not less than
0.002 times the gross cross -sectional area of the footing.-F-Gr-
excee ess N t fewer than one bar shall be
provided at the top and bottom of the footing. Continuity of reinforcement
shall be provided at corners and intersections.
EX-Geptinnc
4 — 1 e+a e&iq , , d Detached one- and two-
family dwellings three stories or less in height and constructed with
stud -bearing walls are permitted to have plain concrete footings
ud4ial-FeinforGefRent t with at least two continuous
Ion itudinal reinforcing bars not smaller than No. 4 and a total area
of less than 0.002 times the gross cross -sectional care area of the
footin .
f oraA:.-s4at 4 dot
t
s' u , td
-atah a
11
beta -fe
Ag-
Section 1905.8 is hereby added to the 2025 CBC to read as follows:
1905.8 ACI 318, Section 18.7.5.
Modify ACI 318, Section 18.7.5, by adding Section 18.7.5.8 and 18.7.5.9 as follows:
18.7.5.8 Where the calculated point of contraflexure is not within the middle half of the
member clear height, provide transverse reinforcement as specified in ACI 318 Sections
18.7.5.1, Items (a) through (c), over the full height of the member.
Ordinance No. 1680
Page 30 of 87
18.7.5.9 - At any section where the design strength, Pn, of the column is less than the
sum of the shears Ve computed in accordance with ACI 318 Sections 18.7.6.1 and
18.6.5.1 for all the beams framing into the column above the level under consideration,
transverse reinforcement as specified in ACI 318 Sections 18.7.5.1 through 18.7.5.3 shall
be provided. For beams framing into opposite sides of the column, the moment
components are permitted to be assumed to be of opposite sign. For the determination
of the design strength, Pn, of the column, these moments are permitted to be assumed
to result from the deformation of the frame in any one principal axis.
Section 1905.9 is hereby added to the 2025 CBC to read as follows:
1905.9 ACI 318, Section 18.10.4.
Modify ACI 318, Section 18.10.4, by adding Section 18.10.4.7 as follows:
18.10.4.7 - Walls and portions of walls with Pu > 0.35Po shall not be considered to
contribute to the calculated shear strength of the structure for resisting earthquake -
induced forces. Such walls shall conform to the requirements of ACI 318 Section 18.14.
Section 1905.10 is hereby added to the 2025 CBC to read as follows:
1905.10 ACI 318, Section 18.12.6.
Modify ACI 318, by adding Section 18.12.6.2 as follows:
18.12.6.2 Collector and boundary elements in topping slabs placed over precast floor and
roof elements shall not be less than 3 inches (76 mm) or 6 db in thickness, where db is
the diameter of the largest reinforcement in the topping slab.
Section 2304.10.2 of the 2025 CBC is amended to read as follows:
2304.10.2 Fastener requirements.
Connections for wood members shall be designed in accordance with the appropriate
methodology in Section 2302.1. The number and size of fasteners connecting wood
members shall not be less than that set forth in Table 2304.10.2. Staple fasteners in Table
2304.10.2 shall not be used to resist or transfer seismic forces in structures assigned to
Seismic Design Category D, E or F.
Exception: Staples may be used to resist or transfer seismic forces when the allowable
shear values are substantiated by cyclic testing and approved by the building official.
Section 2304.12.2.8 of the 2025 CBC is amended to read as follows:
2304.12.2.8 Wood used in retaining walls and cribs.
Wood installed in retaining or crib walls shall be preservative treated in accordance with
AWPA U1 for soil and fresh water use. Wood shall not be used in retaining or crib walls for
structures assigned to Seismic Design Category D, E or F.
Ordinance No. 1680
Page 31 of 87
Section 2305.4 is added to Chapter 23 of the 2025 CBC to read as follows::
2305.4 Quality of Nails.
In Seismic Design Category D, E or F, mechanically driven nails used in wood structural
panel shear walls shall meet the same dimensions as that required for hand -driven nails,
including diameter, minimum length and minimum head diameter. Clipped head or box
nails are not permitted in new construction. The allowable design value for clipped head
nails in existing construction may be taken at no more than the nail -head -area ratio of that
of the same size hand -driven nails.
Section 2305.5 is added to Chapter 23 of the 2025 CBC to read as follows:
2305.5 Hold-down connectors.
In Seismic Design Category D, E or F, hold-down connectors shall be designed to resist
shear wall overturning moments using approved cyclic load values or 75 percent of the
allowable seismic load values that do not consider cyclic loading of the product.
Connector bolts into wood framing shall require steel plate washers on the post on the
opposite side of the anchorage device. Plate size shall be a minimum of 0.229 inch by 3
inches by 3 inches (5.82 mm by 76 mm by 76 mm) in size. Hold-down connectors shall
be tightened to finger tight plus one half (1/2) wrench turn just prior to covering the wall
framing.
Section 2306.2 of the 2025 CBC is amended to read as follows:
2306.2 Wood -frame diaphragms.
Wood -frame diaphragms shall be designed and constructed in accordance with AWC
SDPWS. Where panels are fastened to framing members with staples, requirements and
limitations of AWC SDPWS shall be met and the allowable shear values set forth in Table
2306.2(1) or 2306.2(2) shall only be permitted for structures assigned to Seismic Design
Category A, B, or C.
Exception: Allowable shear values where panels are fastened to framing members
with staples may be used if such values are substantiated by cyclic testing and
approved by the building official.
The allowable shear values in Tables 2306.2(1) and 2306.2(2) are permitted to be
increased 40 percent for wind design.
Wood structural panel diaphragms used to resist seismic forces in structures assigned to
Seismic Design Category D, E or F shall be applied directly to the framing members.
Exception: Wood structural panel diaphragms are permitted to be fastened over
solid lumber planking or laminated decking, provided the panel joints and lumber
planking or laminated decking joints do not coincide.
Ordinance No. 1680
Page 32 of 87
Section 2306.3 of the 2025 CBC is amended to read as follows:
2306.3 Wood -frame shear walls.
Wood -frame shear walls shall be designed and constructed in accordance with AWC
SDPWS. For structures assigned to Seismic Design Category D, E, or F, application of
Tables 4.3A and 4.31B of AWC SDPWS shall include the following:
1. Wood structural panel thickness for shear walls shall not be less than 3/8-inch thick
and studs shall not be spaced at more than 16 inches on center.
2. The maximum nominal unit shear capacities for 3/8-inch wood structural panels
resisting seismic forces in structures assigned to Seismic Design Category D, E or
F is 400 pounds per linear foot (plf).
Exception: Other nominal unit shear capacities may be permitted if such values
are substantiated by cyclic testing and approved by the building official.
3. Nails shall be placed not less than 1/2 inch in from the panel edges and not less
than 3/8 inch from the edge of the connecting members for shear greater than 350
plf using ASD or 500 plf using LRFD. Nails shall be placed not less than 3/8 inch
from panel edges and not less than 1 /4 inch from the edge of the connecting
members for shears of 350 plf or less using ASD or 500 plf or less using LRFD.
4. Table 4.313 application is not allowed for structures assigned to Seismic Design
Category D, E, or F.
For structures assigned to Seismic Design Category D, application of Table 4.3C of AWC
SDPWS shall not be used below the top level in a multi -level building.
Where panels are fastened to framing members with staples, requirements and limitations
of AWC SDPWS shall be met and the allowable shear values set forth in Table 2306.3(1),
2306.3(2) or 2306.3(3) shall only be permitted for structures assigned to Seismic Design
Category A, B, or C.
Exception: Allowable shear values where panels are fastened to framing members with
staples may be used if such values are substantiated by cyclic testing and approved by
the building official.
The allowable shear values in Tables 2306.3(1) and 2306.3(2) are permitted to be
increased 40 percent for wind design. Panels complying with ANSI/APA PRP-210 shall
be permitted to use design values for Plywood Siding in the AWC SDPWS.
Section 2307.2 is added to the 2025 CBC to read as follows:
2307.2 Wood -frame shear walls.
Wood -frame shear walls shall be designed and constructed in accordance with Section
2306.3 as applicable.
Table 2308.10.1 of the 2025 CBC is amended to read as follows:
Ordinance No. 1680
Page 33 of 87
TABLE 2308.10.1—WALL BRACING REQUIREMENTS'
MAXIMUM BRACED PANEL LOCATION, MAXIMUM DISTANCE
SEISMIC SPACING (D.C.) AND MINIMUM PERCENTAGE (X) OF BRACED WALL
DESIGN STORY CONDITION SPACING OF PANELS FROM EACH
CATEGORY (SEE SECTION 2308.2) BRACED WALL Bracing method` ENO OF BRACED
LINES LIB DWB,WSP SFB,PBS,PCP,HPS,GB`a WALL LINE
{=
L
35' 0"
Each4ndand
25' 0" o.c
E.fchenfland
= 25'- 0' o.c
Eachendand 12'•6'
= 25'- 0' o.c
n II.
A and a
35' 0"
Each end and
_25. 0"oc
Each end and
s25'•0'oc
Each end and
�2S 0-0c 12' 6'
35' 0''
Nil
Each end and
Each end and 12' 6'
s 25'• 0' o.c-
_ 25' 0' 0-c.
35'-0"
Nil
Each end and
Each end and 12, f1,
s25' 0'oc
-25' 0"oc
C
Fac h end and
rac h end and
!I
35% 0'
,yp
_ 250' o.0
s 25 _0 . o_c- 12' 6"
r "*
lmlnimum 25'V 0.
(minimum 25'b of wall
wall length;'
length)'
S,,, < 0.50. Each end
5 - 0 SD: Fa(h d and -
and < 25% 0" o c,
,
25% 0" mEno,c. inimum
Immiritum 211v of
43`:v of wall lengthl'
wall lengthl'
0.5-c S_ , 0.15: Each
end and
0.5-_S„-075 Each end
-25' 0'oc
mid •25' 0"oC'!rrn1
Iminimum 32wi of
murn 5tY-- of wail lenp:h)'
wall length)'
0 and E
25' 0'
NP
0,75=S.,.IW
075�S,,, 1,00:Each end
Each end and
and
s 25'- 0' o.c.
_ 25'- 0" o.c,
(minimum 311-n of
(minimum 15°m of wall
wall lengthl'
length)
S, % 1.00. Each end
S . - 1 OD: Each end,tnd
and s 25% 0" o c
25'- 0' o,c. (rnlnimum
(minimum 48 --) of
1M4 t of wall lengthl'
wall length)'
for 51: 1 lrch -25.4 rrT, I toot ` 3JR-5 rnT,
fill- Ilot Pernutted.
a, ?N% table LpeelfK minlR\.m reC1,*fer•Mr1lL for
oraced wall panN5
alPnigMftener or cetnror
wated wall 1-net
b Sop S4f7ia%230810,3,orf�lldovrq:.onofbracingmathodt.
C.. for Melhod 4B,(rpfur,wa!Ibpard a9pltd to
lram,np wpL>xt�tFa;3"^-Lpxed
at lG
irK heo on cerler
d. The regwedle"th5.s•+3AbedoWed1c.XM
mcloxdappledtooryo
eIxeofabrated
wall parA
e,. Percentage•lrwnregrrentfthemrf,mimanwurxof
bracing required
abngthe a;xld:ng
length rorwa'.Ikngth-,l
the -tructvehaLar:rrcgutwJ%apc;,
Section 2308.10.5.1 and Figure 2308.10.5.1 of the 2025 CBC are amended to read as
follows:
2308.10.5.1 Alternate braced wall (ABW).
An ABW shall be constructed in accordance with this section and Figure 2308.10.5.1. In
one-story buildings, each panel shall have a length of not less than 2 feet 8 inches (813
mm) and a height of not more than 10 feet (3048 mm). Each panel shall be sheathed on
Ordinance No. 1680
Page 34 of 87
one face with 3/8-inch (3.2 mm) minimum -thickness wood structural panel sheathing
nailed with 8d common or galvanized box nails in accordance with Table 2304.10.2 and
blocked at wood structural panel edges. For structures assigned to Seismic Design
Category D or E, each panel shall be sheathed on one face with 15/32-inch-minimum-
thickness (11.9 mm) wood structural panel sheathing nailed with 8d common nails spaced
3 inches on panel edges, 3 inches at intermediate supports. Two anchor bolts installed in
accordance with Section 2308.7.1 shall be provided in each panel. Anchor bolts shall be
placed at each panel outside quarter points. Each panel end stud shall have a hold-down
device fastened to the foundation, capable of providing an approved uplift capacity of not
less than 1,800 pounds (8006 N). The hold-down device shall be installed in accordance
with the manufacturer's recommendations. The ABW shall be supported directly on a
foundation or on floor framing supported directly on a foundation that is continuous across
the entire length of the braced wall line. This foundation shall be reinforced with not less
than one No. 4 bar top and bottom. Where the continuous foundation is required to have
a depth greater than 12 inches (305 mm), a minimum 12-inch by 12-inch (305 mm by 305
mm) continuous footing or turned -down slab edge is permitted at door openings in the
braced wall line. This continuous footing or turned -down slab edge shall be reinforced
with not less than one No. 4 bar top and bottom. This reinforcement shall be lapped 15
inches (381 mm) with the reinforcement required in the continuous foundation located
directly under the braced wall line.
Where the ABW is installed at the first story of two-story buildings, the wood structural
panel sheathing shall be provided on both faces, three anchor bolts shall be placed at
one -quarter points and tie -down device uplift capacity shall be not less than 3,000 pounds
(13 344 N).
lip' "C'KCK WOODSTRUC7URALPANEL
�VN
SHEA1 HING ON ONE F AGE
w
x
■HEADER
REQUIRED
2 S' MIN PANEL ...,FOR PANEL SPL CE, (IF NEEDED) ADJOINING PANEL
LENG1 H' • LOUaF- S,13HALL MEET OVEFi D ANBE FAS I ENED I O
r
4:'OR BIA01I &`ICI PING
•
ANCHOR BOLTS PER SECTION 2303 G 5 1
r-1,ItNIMUM REkNP ORC:NU OF I OUNDATION, ONE 1,14
BASS TOP ANLW B T tO1«1 Ol"FOO"ING REiNFORCNG
SHALL BE LAPPED 462¢ INCHES MIN
For SL I inch = 25A mm. I foot = 304.3 mm.
FIGURE 2308.6.5.1
ALTERNATE BRACED WALL PANEL (ABW)
Section 2308.10.5.2 and Figure 2308.10.5.2 of the 2025 CBC are amended to read as
follows:
Ordinance No. 1680
Page 35 of 87
2308.10.5.2 Portal frame with hold-downs (PFH).
A PFH shall be constructed in accordance with this section and Figure 2308.10.5.2. The
adjacent door or window opening shall have a full-length header.
In one-story buildings, each panel shall have a length of not less than 16 inches (406 mm)
and a height of not more than 10 feet (3048 mm). Each panel shall be sheathed on one
face with a single layer of 3/8-inch (9.5 mm) minimum -thickness wood structural panel
sheathing nailed with 8d common or galvanized box nails in accordance with Figure
2308.10.5.2. The wood structural panel sheathing shall extend up over the solid sawn or
glued -laminated header and shall be nailed in accordance with Figure 2308.10.5.2. A
built-up header consisting of at least two 2-inch by 12-inch (51 mm by 305 mm) boards,
fastened in accordance with Item 24 of Table 2304.10.2 shall be permitted to be used. A
spacer, if used, shall be placed on the side of the built-up beam opposite the wood
structural panel sheathing. The header shall extend between the inside faces of the first
full-length outer studs of each panel. The clear span of the header between the inner
studs of each panel shall be not less than 6 feet (1829 mm) and not more than 18 feet
(5486 mm) in length. A strap with an uplift capacity of not less than 1,000 pounds (4,400
N) shall fasten the header to the inner studs opposite the sheathing. One anchor bolt not
less than 5/8 inch (15.9 mm) diameter and installed in accordance with Section 2308.7.1
shall be provided in the center of each sill plate. The studs at each end of the panel shall
have a hold-down device fastened to the foundation with an uplift capacity of not less than
3,500 pounds (15 570 N).
Where a panel is located on one side of the opening, the header shall extend between
the inside face of the first full-length stud of the panel and the bearing studs at the other
end of the opening. A strap with an uplift capacity of not less than 1,000 pounds (4400 N)
shall fasten the header to the bearing studs. The bearing studs shall also have a hold-
down device fastened to the foundation with an uplift capacity of not less than 1,000
pounds (4400 N). The hold-down devices shall be an embedded strap type, installed in
accordance with the manufacturer's recommendations. The PFH panels shall be
supported directly on a foundation that is continuous across the entire length of the braced
wall line. This foundation shall be reinforced with not less than one No. 4 bar top and
bottom. Where the continuous foundation is required to have a depth greater than 12
inches (305 mm), a minimum 12-inch by 12-inch (305 mm by 305 mm) continuous footing
is permitted at door openings in the braced wall line. This continuous footing shall be
reinforced with not less than one No. 4 bar top and bottom. This reinforcement shall be
lapped not less than 24 inches (610 mm) with the reinforcement required in the continuous
foundation located directly under the braced wall line. Where a PFH is installed at the first
story of two-story buildings, each panel shall have a length of not less than 24 inches
(610 mm).
Ordinance No. 1680
Page 36 of 87
EXTENT OF I IEs,OLR
6 .........
„m ,,,,_. ..... �......
.......
UOUL'LL PORIAL FRAt.IL (I WO R GIED WALL P LLS)
EXTENT Of- HEADER ... ®,.
S NCLE
PORTAL FRAME E RCED.....WAL.. L
( L PANEL)
t ,�
Fa91N 101,111, F3 IEDOWN
IN 3 xtt 25NET HEADER
DEVICE
®{
6 ICd 1R°
..... a �,,,,
r TYPICAL PORTAL FRAME
y
CONSTRUCT ION
0JU ID S I RAP UPPOSI I L SHLAI H NG
�i
FASTFN TOPPLATE TO HEADER WITH TWO
>
FOR T ANEL ST'L CE ('F
T '
ROWS OF 16d S:NKER NAILSAT 3° O C TYR
NEEDED) PANEL EDGES
SHALL 13L BLOCKLL: AND
P
FAST EN SHEATH NO TO HEADFR 4V!J11 S,; COMMON
' OCCUR WITH N M DDI F
oa
OR GALVANIZED BOX NAILS IN 3' OHIO E'ATTERN AS
24 IN OF POORTAI HF ICHT
~
SI IC`,VN AND 3° C C IN ALL rR LNG (STUDS,
ONE ROW OF rYP:CAL
BLOCK NGAND S'LLS) 1YP
S1IEATHINC-To-rRAMjNC
MIN VI CT1 I = 1 Ei FOR ONE-STORY STRUCTURES
NAILING IS HECUIRIA,
MiN 1a°dL°IH=24°PORUSF!NFRSIOF IYA)81CRY
ATFAC,HPANFI FPCF
(
STRUCTURES
I 2'w3(tIdNMF"rk31G?C&INC'
,, U'S L U y I IF, ?'we S MUST
T
BE NAILED IOGLIHIER �3
Glsi
MIN Lx� I-RAMiNG
WiFH (3) i6c S NKFRS
)
're L1IN TT I CLNESS WOOF
STRUCTURAL PANFI -.T !.,
A-4A N OOLIBI F 2x4 POST
PAN 35ODLBTIE-COVVNDEVICE(EMBECCED INTOCONCRETE
INTO f !NG IN
. M N 1030 LB T E-D04'1T3
jk't
AND NAILED
ACCORD C E N/I IFI URF_R S
DEV Cf-
lMUI-ACI
RFC`.C3Ta MFNDATIC NS,.—
Sr. E SECT 'T ON 2308 6 5 2,
For SI: I inch 25.4 mm. I foot +04.3 mm. I pound = 4.448 K.
0, L F 21 4IW r%" d WOW' I I5 lAesl 'M Vmroptv PnT F; ttl� IMNrc�t Odd@ kF, f'��I M W1EYY 1rh �' O AW • 1W I �+C I kFtk FM i f Yl NlM wp' ! tl aY l46G t � m T ILL �tl►. r
FIGURE 2308.6.6.2
PORTAL FRAME WITH HOLD-DOWNS (PFH)
Section 2308.10.8.1 of Chapter 23 of the 2025 CBC is amended to read as follows:
2308.10.8.1 Foundation requirements.
Braced wall lines shall be supported by continuous foundations.
Exception: For structures with a maximum plan dimension not more than 50 feet
(15240 mm), continuous foundations are required at exterior walls only for
structures assigned to Seismic Design Category A, B, or C.
For structures in Seismic Design Categories D and E, exterior braced wall panels shall
be in the same plane vertically with the foundation or the portion of the structure
containing the offset shall be designed in accordance with accepted engineering practice
and Section 2308.3.
Section 2308.10.9 of the 2025 CBC is amended to read as follows:
2308.10.9 Attachment of sheathing.
Fastening of braced wall panel sheathing shall be not less than that prescribed in Tables
2308.10.1 and 2304.10.2. Wall sheathing shall not be attached to framing members by
adhesives. Staple fasteners in Table 2304.10.2 shall not be used to resist or transfer
seismic forces in structures assigned to Seismic Design Category D, E or F.
Ordinance No. 1680
Page 37 of 87
Exception: Staples may be used to resist or transfer seismic forces when the
allowable shear values are substantiated by cyclic testing and approved by the
building official.
All braced wall panels shall extend to the roof sheathing and shall be attached to parallel
roof rafters or blocking above with framing clips (18 gauge minimum) spaced at maximum
24 inches (6096 mm) on center with four 8d nails per leg (total eight 8d nails per clip).
Braced wall panels shall be laterally braced at each top corner and at maximum 24 inches
(6096 mm) intervals along the top plate of discontinuous vertical framing.
Section 3114 of the 2025 CBC is amended as follows:
SECTION 3114
INTERMODAL SHIPPING CONTAINERS
3114.1 General. The provisions of Section 3114 and other applicable sections of this
code shall apply to intermodal shipping containers that are repurposed for use as
buildings or structures or as a part of buildings or structures.
Exceptions:
1. Not adopted.
2. Stationary storage battery arrays located in intermodal shipping containers
complying with Chapter 12 of the California Fire Code.
3. Intermodal shipping containers that are listed as equipment complying with the
standard for equipment, such as air chillers, engine generators, modular
datacenters, and other similar equipment.
4. Intermodal shipping containers housing or supporting experimental equipment are
exempt from the requirements of Section 3115 provided they comply with all of the
following:
4.1. Single -unit stand-alone intermodal shipping containers shall be supported at
grade level and used only for occupancies as specified under Risk Category I
in Table 1604.5;
4.2. Single -unit stand-alone intermodal shipping containers shall be located a
minimum of 8 feet from adjacent structures and are not connected to a fuel
gas system or fuel gas utility; and
4.3.In hurricane -prone regions and flood hazard areas, single -unit stand-alone
intermodal shipping containers are designed in accordance with the applicable
provisions of Chapter 16.
4.4.Intermodal shipping containers approved as temporary structures complying
with Section 3103.
Ordinance No. 1680
Page 38 of 87
5. [HCD] shipping containers constructed or converted off -site that meet the definition
of Factory -built Housing in Health and Safety Code Section 19971 or Commercial
Modular(s) as defined in Health and Safety Code Section 18001.8 shall be
approved by the Department of Housing and Community Development.
6. Single -unit stand-alone intermodal shipping containers used as temporary storage
or construction trailer on active construction sites. Construction support facilities
for uses and activities not directly associated with the actual processes of
construction, including but not limited to, offices, meeting rooms, plan rooms, other
administrative or support functions shall not be exempt from Section 3114.
3114.8.4 Detailed design procedure. A structural analysis meeting the requirements of
this section shall be provided to the building official to demonstrate the structural
adequacy of the intermodal shipping containers.
Exception: Structures using an intermodal shipping container that meet the limitation of
Section 3114.8.5.1 and designed in accordance with the simplified procedure in Section
3114.8.5.
3114.8.5.2 Structural design assumptions. Where permitted by Section 3114.8.5.1,
single -unit stand-alone, intermodal shipping containers shall be designed using the
following assumptions for the profile steel panel foree-exist' side walls
and end walls:
1. The appropriate detailing requirements contained in Chapters 16 through 23.
2. Response modification coefficient, R = 2,
3. Over strength factor, Do = 2.5,
4. Deflection amplification factor, Ca = 2, and
5. Limits on structural height, h„= 9.5 feet (2900 mm).
Section J101.3 is added to the 2025 CBC to read as follows:
J101.3 Hazards.
Whenever the building official determines that any land or any existing excavation
or fill has, from any cause, become a menace to life or limb, or endangers public
or private property, or adversely affects the safety, use or stability of public or private
property, the owner or other person in legal control of the property concerned shall,
upon receipt of a written notice thereof from the building official, correct such
condition in accordance with the provisions of this appendix and the requirements
and conditions set forth in the notice so as to eliminate such condition. The owner
or other person in legal control of the property shall immediately comply with the
provisions set forth in the notice and shall complete the work within 180 days from
the date of the notice unless a shorter period of time for completion has been
specified in the notice in which case the owner shall comply with the shorter period
Ordinance No. 1680
Page 39 of 87
of time. Upon written application and good cause shown, the building official may
approve the request for an extension of time to complete the work required by the
notice.
2. If the above condition is not eliminated within the specified time period, the building
official may file with the Office of the Los Angeles County Recorder a certificate
stating that the property is deemed substandard and that the owner thereof has
been so notified to correct the substandard condition. Said certificate shall specify
the conditions creating the substandard classification.
3. When the above conditions have been corrected to the satisfaction of the building
official, upon receiving a sixty -dollar fee from the owner or his agent, the building
official shall file with the Office of the Los Angeles County Recorder, within a
reasonable period of time, a certificate specifying that the conditions creating the
substandard classification have been corrected and that the property is no longer
considered substandard.
Section J101.4 is added to the 2025 CBC to read as follows:
J101.4 Safety Precautions.
1. General.
a) If at any stage of work on an excavation or fill, the building official
determines that the work has become or is likely to become dangerous to
any person, or is likely to endanger any property, public or private, the
building official must be authorized to require safety precautions to be
immediately taken by the property owner as a condition to continuing such
permitted work or to require cessation thereof forthwith unless and until it is
made safe and to amend the plans for such work.
b) Safety precautions may include, without limitation, specifying a flatter
exposed slope or construction of additional drainage facilities, berms,
terracing, compaction, cribbing, retaining walls or buttress fills, slough walls,
desilting basins, check dams, benching, wire mesh and guniting, rock
fences, revetments or diversion walls.
c) Upon the determination of the building official that such safety precautions
during grading are necessary, the building official must provide a notice and
order to the permittee to implement same. After receiving such notice, oral
or written, it is unlawful for the permittee or any person to proceed with such
work contrary to such order.
2. Removal of Ground Cover.
a) The existing vegetative ground cover of any watershed in any hillside area
cannot be destroyed, removed or damaged except for routine maintenance
pursuant to lawful grading, use or occupancy of the property or to clear
hazardous vegetation near structures and roads.
Ordinance No. 1680
Page 40 of 87
b) Whenever ground cover is removed or damaged pursuant to a validly
issued grading permit, the permittee must restore and maintain the affected
area with an approved ground cover or must accomplish such other erosion
control protection measures as may be approved by the building official.
Such erosion control must be completed within thirty days after cessation
of the grading work or other work pursuant to a validly issued building
permit.
3. Maintenance of Protective Devices.
All devices used to protect hillside areas from erosion or landslide damage
including, without limitation, retaining walls, cribbing, terracing, surface and
subsurface drainage structures, interceptor drains, check dams, and riprap must
be maintained in good condition and repair as approved by the building official at
the time of completion of construction thereof.
Section J101.5 is added to the 2025 CBC to read as follows;.
J101.5 Protection of Utilities
The owner and permittee of any property on which grading has been performed and that
requires a grading permit must be responsible for the prevention of damage to any public
utilities or services.
Section J101.6 is added to the 2025 CBC to read as follows:
J101.6 Protection of Adjacent Properties
The owner and permittee of any property on which grading has been performed and that
requires a grading permit is responsible for the prevention of damage to adjacent property
and no person must excavate on land sufficiently close to the property line to endanger
any adjoining public street, sidewalk, alley, or other public or private property without
supporting and protecting such property from settling, cracking or other damage that might
result. Special precautions approved by the building official must be made to prevent
imported or exported materials from being deposited on the adjacent public way and/or
drainage courses. A 30- day excavation notice must be provided as required by California
Civil Code Section 829-834 when the excavation is of sufficient depth and proximity to
adjacent lot structures.
Section J101.7 is added to the 2025 CBC to read as follows:
J101.7 Storm water control measures.
The owner and permittee of any property on which grading has been performed and that
requires a grading permit under Section J103 shall put into effect and maintain all
precautionary measures necessary to protect adjacent water courses and public private
property from damage by erosion, flooding, and deposition of mud, debris and
construction -related pollutants originating from the site during, and after, grading and
Ordinance No. 1680
Page 41 of 87
related construction activities. Furthermore, the owner and permittee shall be responsible
for putting into effect and maintaining appropriate measures necessary to prevent any
change in cross -lot surface drainage that may adversely affect any adjoining property as
a result of grading and/or construction- related activities. Such measures to prevent any
adverse cross -lot surface drainage effects on adjoining property shall be required whether
shown on approved grading plans or not.
Section J101.8 is added to the 2025 CBC to read as follows:
J101.8 Conditions of approval.
In granting any permit under this code, the building official may include such conditions
as may be reasonably necessary to prevent creation of a nuisance or hazard to public or
private property. Such conditions may include, but shall not be limited to:
1. Improvement of any existing grading to comply with the standards of this code.
2. Requirements for fencing of excavations or fills which would otherwise be
hazardous.
Section J101.9 is added to the 2025 CBC to read as follows;
J101.9 Rules and regulations.
J101.9.1 Rules. The permissive provisions of this chapter shall not be presumed to waive
any regulations imposed by other statutes or other ordinances of the State of California
or the City of El Segundo.
J101.9.2 Regulations. If two or more pertinent regulations are not identical, those
regulations shall prevail which are more restrictive or which afford greater safety to life,
limb, health, property or welfare. For the purposes of these regulations, grading permits
shall be considered as building permits and shall be subject to the administrative
provisions of this code, unless otherwise specifically provided for in this chapter.
Section J 103.2 is amended to the 2025 CBC to read as follows:
J103.2 Exemptions.
A grading permit shall not be required for the following:
1. When approved by the building official, grading in an isolated, self-contained area,
provided there is no danger to the public, and that such grading will not adversely
affect adjoining properties.
2. Excavation for construction of a structure permitted under this code where the
excavation is limited to within the volume of the proposed structure.
3. Cemetery graves.
Ordinance No. 1680
Page 42 of 87
4. Refuse disposal sites controlled by other regulations.
5. Excavations for wells, or trenches for utilities.
6. Mining, quarrying, excavating, processing or stockpiling rock, sand, aggregate or
clay controlled by other regulations, provided such operations do not affect the
lateral support of, or significantly increase stresses in, soil and adjoining properties.
7. Exploratory excavations performed under the direction of a registered soils
engineer or engineering geologist. This shall not exempt grading of access roads
or pads created for exploratory excavations. Exploratory excavations must not
create a hazardous condition to adjacent properties or the public in accordance
with Section J101.3. Exploratory excavations must be restored to existing
conditions, unless approved by the building official.
8. An excavation that does not exceed 50 cubic yards (38.3 m") and complies with
one of the following conditions:
(a) is less than 2 feet (0.6 m) in depth.
(b) does not create a cut slope greater than 5 feet (1.5 m) measured vertically
upward from the cut surface to the surface of the natural grade and is not
steeper than 2 units horizontal to 1 unit vertical (50 percent slope).
9. A fill not intended to support a structure that does not obstruct a drainage course
and complies with one of the following conditions:
(a) is less than 1 foot (0.3 m) in depth and is placed on natural terrain with a
slope flatter than 5 units horizontal to 1 unit vertical (20 percent slope).
(b) is less than 3 feet (0.9 m) in depth at its deepest point measured vertically
upward from natural grade to the surface of the fill, does not exceed 50
cubic yards, and creates a fill slope no steeper than 2 units horizontal to 1
unit vertical (50 percent slope).
(c) is less than 5 feet (1.5 m) in depth at its deepest point measured vertically
upward from natural grade to the surface of the fill, does not exceed 20
cubic yards, and creates a fill slope no steeper than 2 units horizontal to 1
unit vertical (50 percent slope).
Exemption from the permit requirements of this appendix shall not be deemed to
grant authorization for any work to be done in any manner in violation of the
provisions of this code or any other laws or ordinances of this jurisdiction.
Section J103.3 is added to the 2025 CBC to read as follows:
J103.3 Permit issuance.
1. The issuance of a grading permit shall constitute an authorization to do only that
work which is described or illustrated on the application for the permit or on the
grading plans and specifications approved by the building official at the time of
issuance.
Ordinance No. 1680
Page 43 of 87
2. Jurisdiction of other agencies. Permits issued under the requirements of this
chapter shall not relieve the owner of responsibility for securing required permits
for work to be accomplished which is regulated by any other code, department or
division of the governing agency.
3. Conditions of permit. The building official, upon recommendation of the city traffic
and transportation administrator, may impose such regulations with respect to
access routes to and from grading sites in hillside areas as the building official shall
determine are required in the interest of safety precautions involving pedestrian or
vehicular traffic.
4. Consent of adjacent property owner. Whenever any excavation or fill requires entry
onto adjacent property for any reason, the permit applicant shall obtain the written
consent or legal easements or other property rights of the adjacent property owner
or their authorized representative, and shall file a signed and duly notarized copy
of such consent with the building official, and no permit for such grading work may
be issued unless and until all necessary consent documents are so filed. The
consent shall be in a form acceptable to the building official.
Section J 103.4 is added to the 2025 CBC to read as follows:
J103.4 Grading fees.
1. Fees for grading plan check and for grading permits shall be established or
modified by resolution of the city council. The schedule of such fees shall remain
on file and be available in the office of the building official. The building official
shall, with the approval of the city manager, recommend changes to the council
when the costs to provide grading plan check and grading inspection services
make it appropriate.
2. The applicant shall pay a plan check fee prior to acceptance of grading plans and
specifications for checking by the city. The plan check fee shall be based on the
total volume of the excavation and fill, on the site. The grading plan check fee shall
be recalculated each time the grading plan volume of excavation and fill exceeds
the volume used to determine the original plan check fee, and the applicant shall
pay the difference between the revised and original fee before the revised grading
plans are accepted for review by the city. The original grading plan check fee
includes the cost to the applicant for the original submittal plus two additional
submittals of corrected grading plans and specifications. When required by the
building official, the applicant shall pay a supplemental grading plan check fee in
accordance with the fee resolution established by the city council.
3. Whenever the applicant submits a grading plan for plan check that is substantially
different in design of the earthwork as compared to previously submitted grading
plans, the submittal shall be considered an original and a new grading plan check
fee shall be determined and paid to the city as provided in this section.
4. The applicant shall pay a grading permit fee prior to the issuance of a grading
permit by the city. The fee shall be based on the total volume of excavation and
fill, on the site. If, during grading operations, the plans and specifications for the
Ordinance No. 1680
Page 44 of 87
grading project are revised increasing the volume of excavation, fill, or a
combination thereof above the volume that was used to determine the grading
permit fee, the applicant shall pay to the city the difference between the original
grading permit fee and the recalculated fee before work may resume under the
grading permit.
5. Whenever grading operations are commenced without an approved grading
permit, a penalty shall be added to all unpaid fees for grading plan check and
grading permits. The penalty shall be three hundred percent of all fees due the
city.
Section J104.2.1 is added to the 2025 CBC to read as follows:
J104.2.1 Grading Designation.
Grading in hilly terrain and all grading in excess of 2,500 cubic yards shall be performed
in accordance with the approved grading plan prepared by a registered civil engineer and
shall be designated as "engineered grading." Grading involving less than 2,500 cubic
yards and not located in an area of mountainous terrain shall be designated as "regular
grading" unless the permittee chooses to have the grading performed as engineered
grading, or the building official determines that special conditions or unusual hazards
exist, in which case grading shall conform to the requirements for engineered grading.
Section J104.2.2 is added to the 2025 CBC to read as follows
J104.2.2 Regular grading requirements.
In addition to the provisions of Section 106, and Section 104.2, Chapter 1, Division II, an
application for a regular grading permit shall be accompanied by plans in sufficient clarity
to indicate the nature and extent of the work. The plans shall give the location of the work,
the name of the owner, and the name of the person who prepared the plan. If the slope
of the grade exceeds 3 units horizontal to 1 unit vertical or as required by the building
official, the plans and specifications shall be prepared and signed by an individual
licensed by the state to prepare such plans or specifications. The plan shall include the
following information:
1. General vicinity of the proposed site.
2. Limits and depths of cut and fill.
3. Location of any buildings or structures where work is to be performed, and the
location of any buildings or structures within 15 feet (4.6 m) of the proposed
grading.
4. Contours, flow areas, elevations, or slopes which define existing and proposed
drainage patterns.
5. Storm water provisions in accordance with the requirements of Appendix J and
Title 5 Chapter 4 of the City of El Segundo Municipal Code.
Ordinance No. 1680
Page 45 of 87
6. Location of existing and proposed utilities, drainage facilities, and recorded public
and private easements and use restricted use areas.
7. Location of all Special Flood Hazard Areas as designated and defined in Title 44,
Code of Federal Regulations.
Section J104.2.3 is added to the 2025 CBC to read as follows:
J104.2.3 Engineered grading requirements.
In addition to the provisions of Chapter 1 Division II, Section 107 and Appendix J Section
J104.2, an application for an engineered grading permit shall be accompanied by plans
and specifications and supporting data consisting of a soils engineering report and
engineering geology report. The plans and specifications shall be prepared and signed
by an individual licensed by the state to prepare such plans or specifications when
required by the building official. Specifications shall contain information covering
structures and material requirements. Plans shall be drawn to scale and shall be of
sufficient clarity to indicate the nature and extent of the work proposed and show in detail
that it will conform to the provisions of this code and all relevant laws, ordinances, rules,
and regulations. The first sheet of each set of plans shall give location of the work, the
name and address of the owner, and the person by whom they were prepared. The plans
shall include, but shall not be limited to, the following information:
1. General vicinity of the proposed site.
2. Property limits and accurate contours of existing ground and details of terrain and
area drainage.
3. Limiting dimensions, elevations, or finish contours to be achieved by the grading,
proposed drainage channels, and related structures.
4. Detailed plans of all surface and subsurface drainage devices, walls, cribbing,
dams and other protective devices to be constructed with, or as a part of, the
proposed work. A map showing the drainage area and the estimated runoff of the
area served by any drains shall also be provided.
5. Location of any existing or proposed buildings or structures on the property where
the work is to be performed and the location of any buildings or structures on land
of adjacent owners that are within 15 feet (4.6 m) of the property or that may be
affected by the proposed grading operations.
6. Recommendations in the geotechnical engineering report and the engineering
geology report shall be incorporated into the grading plans or specifications. When
approved by the building official, specific recommendations contained in the
geotechnical engineering report and the engineering geology report, that are
applicable to grading, may be included by reference.
7. The dates of the geotechnical engineering and engineering geology reports
together with the names, addresses, and telephone numbers of the firms or
individuals who prepared the reports.
Ordinance No. 1680
Page 46 of 87
8. A statement of the earthwork quantities of materials to be excavated and/or filled.
Earthwork quantities shall include quantities for geotechnical and geological
remediation. In addition, a statement of material to be imported or exported from
the site.
9. A statement of the estimated starting and completion dates for work covered by
the permit.
10. A statement signed by the owner acknowledging that a field engineer, geotechnical
engineer and engineering geologist, when appropriate, will be employed to perform
the services required by this code, whenever approval of the plans and issuance
of the permit are to be based on the condition that such professional persons be
so employed. These acknowledgments shall be on a form furnished by the building
official.
11. Storm water provisions are required to be shown on the grading plan in accordance
with Appendix J Section J and Title 5 Chapter 4 of the ESMC.
12.A drainage plan for that portion of a lot or parcel to be utilized as a building site
(building pad), including elevation of floors with respect to finish site grade and
locations of existing and proposed stoops, slabs, fences or other features that may
affect drainage.
13. Location and type of any existing or proposed private sewage disposal system.
14. Location of existing and proposed utilities, drainage facilities, and recorded public
and private easements.
15. Location of all recorded floodways.
16. Location of all Special Flood Hazard Areas as designated and defined in Title 44,
Code of Federal Regulations.
Section J109.5 is added to the 2025 CBC to read as follows:
J109.5 Disposal.
All drainage facilities shall be designed to carry waters to the nearest practicable street,
storm drain, or natural watercourse drainage way approved by the building official or other
appropriate governmental agency jurisdiction provided it is a safe place to deposit such
waters. Erosion of ground in the area of discharge shall be prevented by installation of
non -erosive down drains or other devices. Desilting basins, filter barriers or other
methods, as approved by the building official, shall be utilized to remove sediments from
surface waters before such waters are allowed to enter streets, storm drains, or natural
watercourses. If the drainage device discharges onto natural ground, riprap or a similar
energy dissipater may be required. Building pads shall have a minimum drainage gradient
of 2 percent toward approved drainage facilities, a public street or drainage structure
approved to receive storm waters unless waived by the building official. A lesser slope
may be approved by the building official for sites graded in relatively flat terrain, or
where special drainage provisions are made, when the building official finds such
modification will not result in unfavorable drainage conditions.
Ordinance No. 1680
Page 47 of 87
Section J113 is added to the 2025 CBC to read as follows: SECTION J113
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
COMPLIANCE
J113.1 General.
All grading plans and permits shall comply with the provisions of this section for NPDES
compliance including the owner of any property on which grading has been performed
and which requires a grading permit under Appendix J Section J103. Sites which have
been graded and which require a grading permit under Appendix J Section J103 are
subject to penalties and fines per Appendix J Section J113.4. All best management
practices shall be installed before grading begins or as instructed in writing by the building
official for unpermitted grading as defined by Section J 103.3. As grading progresses, all
best management practices shall be updated as necessary to prevent erosion and control
structures related pollutants from discharging from the site. All best management
practices shall be maintained in good working order to the satisfaction of the building
official unless final grading approval has been granted by the building official and all
permanent drainage and erosion control systems, if required, are in place.
J113.2 Storm water pollution prevention plan (SWPPP).
When requested by the building official, no grading permit shall be issued unless the plans
for such work include a Storm Water Pollution Prevention Plan with details of best
management practices, including desilting basins or other temporary drainage or control
measures, or both, as may be necessary to control structures- related pollutants which
originate from the site as a result of structures related activities. For unpermitted grading
as defined by Section J103.3 upon written request a SWPPP in compliance with the
provisions of this section and Section J106.4.3 for NPDES compliance shall be submitted
to the building official.
J113.3 Wet weather erosion control plans (WWECP).
In addition to the SWPPP required in Appendix J Section J113.2, where a grading permit
is issued and it appears that the grading will not be completed prior to November 1, then
on or before October 1 the owner of the site on which the grading is being performed shall
file or cause to be filed with the building official a WWECP which includes specific best
management practices to minimize the transport of sediment and protect public and
private property from the effects of erosion, flooding or the deposition of mud, debris or
structures related pollutants. The best management practices shown on the WWECP
shall be installed on or before October 15. The plans shall be revised annually or as
required by the building official to reflect the current site conditions. The WWECP shall be
accompanied by an application for plan checking services and plan check fees equal in
amount to 10 percent of the original grading permit fee."
Ordinance No. 1680
Page 48 of 87
SECTION 3. Sections 13-2-1 and 13-2-2 of Chapter 2 of Title 13 of the ESMC are
repealed and replaced by the following to read as follows:
CHAPTER
RESIDENTIAL CODE
13-2-1: ADOPTION OF CALIFORNIA RESIDENTIAL CODE, 2025 Edition:
Pursuant to California Government Code Section 50022.2, the California Building Code,
2025 Edition, published at Title 24, Part 2.5, of the California Code of Regulations,
including Appendix CI ("CRC") is adopted by reference, subject to the amendments,
additions and deletions set forth in Section 13-1-2. One true copy of the CRC is on file in
the office of the Building Official and is available for public inspection as required by law.
13-2-2: AMENDMENTS TO CALIFORNIA RESIDENTIAL CODE:
The California Residential Code adopted pursuant to Section 13-2-1 is hereby amended
as follows:
Subsection 11 is added to R105.2 of the 2025 CRC:
R105.2 Work exempt from permit.
Building:
11. Block wall and concrete fences not over 3 feet 6 inches high..
Section R105.3.2 of the 2025 CRC is hereby amended to read as follows:
R105.3.2 Expiration of Plan Check.
An application for a permit for any proposed work is deemed to have been abandoned 12
months after the application date. Unless otherwise provided, after expiration of the
application, the City will not issue a permit until the plans are rechecked and approved
and a new fee is paid.
Exception: The Building Official may grant extensions of time for additional periods not
exceeding 90 days each if a permit applicant submits in writing sufficient evidence that
unusual conditions or circumstances precluded the securing of the permit within the
allocated time.
Section R105.8.1 of Chapter 1 of the 2025 CRC is added to read as follows:
R105.8.1 Responsibility of permittee.
Building permits shall be presumed by the city to incorporate all of the work that the
applicant, the applicant's agent, employees and/or contractors shall carry out. Said
proposed work shall be in accordance with the approved plans and with all requirements
Ordinance No. 1680
Page 49 of 87
of this code and any other laws or regulations applicable thereto. No city approval shall
relieve or exonerate any person from the responsibility of complying with the provisions
of this code nor shall any vested rights be created for any work performed in violation of
this code.
Section R108.5.1 of Chapter 1 of the 2025 CRC -is added to read as follows:.
R108.5.1 Plan check fees refund.
No portion of the plan check fee shall be refunded unless plan review has not been
performed, in which case 80 percent of the plan check fee shall be refunded upon written
application for refund submitted by the person who made original payment of such fee and
with the written consent of the owner of the real property on which the work was proposed
to be done. The Building Official shall determine, in such official's discretion, whether an
applicant is qualified to receive a refund. After 180 days have elapsed from the date of the
submittal for plan check, no plan check fees shall be refunded. In the event subsequent
application for plan check is made by a person who has received a refund, the full amount
of all required fees shall be paid as elsewhere provided in this chapter.
Section R108.5.2 of Chapter 1 of the 2025 CRC is added to read as follows:
R108.5.2 Permit fees refund.
In the event any person shall have obtained a building permit and no portion of the work
or construction covered by such permit shall have commenced, nor any inspection
performed by any City employee, and notice of abandonment has been received from the
owner of the real property on which such work would have been performed, the permittee,
upon presentation to the Building Official of a written request for refund, shall be entitled
to a refund in an amount equal to 80 percent of the building permit fee actually paid for
such permit. The Building Official shall determine, in such official's discretion, whether an
applicant is qualified to receive a refund. After 12 months have elapsed from the date of
the issuance of the permit, no permit fees shall be refunded. In the event subsequent
application for a permit is made by a person who has received a refund, the full amount
of all required fees shall be paid as elsewhere provided in this chapter.
Exception:
If a permit has been issued for a project located in an area outside the
jurisdiction of the City, 100 percent of the permit and plan checking fee may be
refunded.
2. If a duplicate permit has been erroneously issued, 100 percent of the duplicated
permit and plan checking fee may be refunded
Section R108.6 of Chapter 1 of the 2025 CRC is amended to read as follows:
R108.6 Work commencing before permit issuance.
Any person who commences any work on a building, structure, electrical, gas, mechanical
Ordinance No. 1680
Page 50 of 87
or plumbing system before obtaining the necessary permits shall be subject to a fee in
addition to the normally established permit fee, equal to 100% of such normally
established permit fee, or as otherwise determined by the building official.
Section R109.1.7 of Chapter 1 of the 2025 CRC is added to read as follows:
R109.1.7 Setback Certification required.
A California State licensed surveyor is required to certify the location and setbacks of all
new construction prior to the first foundation inspection. A copy of the certification shall
be available to the Building Division inspector for the job file prior to the first inspection
Exception: Wherever there are practical difficulties involved in carrying out the provisions
of this section, the Building Official shall have the authority to grant modifications for
individual cases.
Section R109.5 of Chapter 1 of the 2025 CRC is hereby added to read as follows:
R109.5 Re -inspections.
A re -inspection fee in the amount set by the City Council resolution may be assessed for
each inspection or re -inspection when such portion of work for which inspection is called is
incomplete or when required corrections called are not made. This section is not to be
interpreted as requiring re -inspection fees the first time a job is rejected for failure to
comply with the requirements of this code, but as controlling the practice of calling for
inspections before the job is ready for such inspection or re -inspection. Re -inspection
fees may be assessed when the inspection record card is not posted or otherwise
available on the work site, the approved plans are not readily available to the inspector,
for failure to provide access on the date for which inspection is requested, or for deviating
from plans requiring the approval of the building official. In instances where re -inspection
fees have been assessed, no additional inspection of the work will be performed until the
required fees have been paid.
Section R112.3 of Chapter 1 of the 2025 CRC is hereby amended to read as follows:
R112.3 Board of Appeals.
The board of appeals consists of members of the Planning Commission. The term of a
board of appeals member will coincide with the term of service as a Planning
Commissioner and will terminate should the member cease serving as a Planning
Commissioner. The building official is the secretary to the board. The board may adopt
reasonable rules and regulations for conducting its investigations and will render all its
decisions and findings on contested matters, in writing to the building official, with a
duplicate copy for any appellant or contestant affected by such decision or finding and
may recommend to the city council appropriate new legislation.
Three members of the board constitute a quorum. The Planning Chairperson is the board's
chairperson and in the chairperson's absence the board will select a temporary
Ordinance No. 1680
Page 51 of 87
chairperson.
The city will assess a filing fee set by City Council resolution, at the time that an appellant
files appeal of any order, decisions, or determination made by the building official relative
to the application and interpretation of this code. The filing fee is refundable should the
appellant prevail in a decision by the board. The appeal must be taken by filing a written
notice of appeal, in letterform, to the board of appeals. The board's decision constitutes
the city's final decision.
Section R301.1.3.2 of Chapter 3 of the 2025 CRC is amended to read as follows:
R301.1.3.2 Wood -frame structures greater than two stories.
The building official shall require construction documents to be approved and stamped
by a California licensed architect or engineer for all dwellings of wood- frame construction
more than two stories and basement in height located in Seismic Design Category A, B
or C. Notwithstanding other sections of law; the law establishing these provisions is found
in Business and Professions Code Section 5537 and 6737.1.
The building official shall require construction documents to be approved and stamped by
a California licensed architect or engineer for all dwellings of wood- frame construction
more than one story in height or with a basement located in Seismic Design Category Do,
D1. D2.
Section R301.1.5 is added to Chapter 3 of the 2025 CRC to read as follows:
R301.1.5 Seismic design provisions for buildings constructed on or into slopes
steeper than one unit vertical in three units horizontal (33.3 percent slope).
The design and construction of new buildings and additions to existing buildings when
constructed on or into slopes steeper than one unit vertical in three units horizontal (33.3
percent slope) shall comply with Section 1613.6 of the Building Code.
Section R309.1 of the 2025 CRC is amended to read as follows:
R309.1 Automatic firesprinkler systems.
A. New Buildings and Structures: Unless otherwise prohibited by law, approved
automatic sprinkler systems in new buildin s and structures shall be required for
all occupancies.
B. Existina Buildings, and Structures: Unless otherwise prohibited by law, any work
to an existing building which removes more than fifty percent 50%0 of the exterior
perimeter wall height as defined in ESMC 15-1-6 for additions and alterations will
require the existing building to be fully s rinklered throughout.
R309.1 Townhouse automatic fire sprinkler systems.
Ordinance No. 1680
Page 52 of 87
An approved automatic residential fire sprinkler system shall be installed in townhouses.
Exception: Deleted.
R309.1.1 Design and installation.
Automatic fire sprinkler systems for townhouses shall be designed and installed in
accordance with Section R309, NFPA 13 or NFPA 13D.
Section R330.1 of the 2025 CRC is amended to read as follows:
R330.1 General.
Energy storage systems (ESS) shall comply with the provisions of this section.. and the El
Segundo Fire Code.
Exceptions: Deleted.
Section R330.4 of the 2025 CRC is amended to read as follows:
R330.4 Locations.
ESS shall be installed only in the following locations:
1. Detached garages and detached accessory structures.
2. Deleted.
3. Outdoors or on the exterior side of exterior walls located not less than 3 feet (914
mm) from doors and windows directly entering the dwelling unit, including
accessory dwelling units.
4. Deleted.
Section R330.5 of the 2025 CRC is amended to read as follows:
R330.5 Energy Ratings.
Ordinance No. 1680
Page 53 of 87
TABLE R330.5—MAXIMUM AGGREGATE RATINGS OF ESS
MAXIMUM
LOCATION AGGREGATE INSTALLATION REQUIREMENTS
RATINGS (kWh)
,6ltices dot ��� � r„ lm �aa us�'tl'+"ircrr�orutrfi r
i000i�u�� m mu s�oa i i000moruumsicsiiiimoi ..
�ate1P wv�rn see lir�gs
In attached garages 80
On or within 3 feet of exterior walls ofdsvellings and 100
attached garoges
On or within 3 feet of exterior wolfs ofdwellings and 200 Exterior wolfs and eaves are constructed with noncombustible
attached garages surfaces"
In detached garages and detached accessory structures 200
In detached garages and detached accessory structures 600 Detached garage or detached accessory structure is a minimum
10 feet away from property lines and dwellings
Outdoors on the ground 200 ESS is a minimum 3 feet away from property lines and dsvellings
Outdoors on the ground 600 ESS is a minimum 10 feet away from property lines and dsvellings
For 5l: 1 foot = 304.8 mm.
o, l0ancombustib)v wall surface shall exfrod in accordonev withal/ the following:
1. A minimum ofS foot howontalfyfrom the edge ofthe ESS
2. Aminimum ofltoot vrnkalfybelow the bottom edge, ofthe ESS.
3 A minimum of8feet verticallyabovp the ESS, or to awn combustible cave, whichever is less.
The code olliiciol is authorized ro approve inductions of installation requirements basedon large stole fire rating complying with Section 120715 of theCalilbenk Fire code
ESS installations exceeding the permitted individual or aggregate ratings shall be
installed in accordance with Section 1207 of the El Segundo Fire Code.
Section R330.7 of the 2025 CRC is deleted in its entirety:.
Section R341 is added to the 2025 CRC to read as follows:
R341 RESIDENTIAL NOISE INSULATION STANDARDS (Airport Noise Sources)
R341.1 Noise Insulation Requirements for New Construction.
R341.2 Purpose and Scope.
The purpose of this section is to establish minimum noise insulation performance
standards for new residential dwelling units and additions of habitable rooms to existing
residential dwelling units to protect public health, safety, and welfare from the effects of
excessive noise, including without limitation, indoor quality of life, speech interference,
and sleep disruption.
R341.3 Applicability.
This section applies to all newly constructed residences and habitable room additions to
existing residences.
R341.4 Definitions.
Ordinance No. 1680
Page 54 of 87
For purposes of this section, the following words must have the following meaning:
"Community Noise Equivalent Level (CNEL)" means the noise measure defined in 21
Code of California Regulations § 5001(d), and any successor regulation or amendment.
"Habitable Room" means a room that is a space in a structure for living, sleeping, eating,
or cooking. Bathrooms, toilet compartments, closets, halls, storage or utility space,
garages, and similar areas are not considered habitable space.
"LAX" means Los Angeles International Airport.
"Noise Impact Boundary for LAX" means the area around LAX as defined in 21
California code of regulations § 5001(1), and any successor regulation or amendment.
The city's building safety department must at all times maintain a current map of the noise
impact boundary. The latest published map by LAWA located at the Building Safety
Counter shall be used as the basis for determination.
"Residence" means any occupancy group R building as used in El Segundo Title 13 of
the El Segundo municipal code.
R341.5 Standards.
Any new residence or addition of one or more habitable rooms to an existing residence
that is within the noise impact boundary for LAX must be designed to ensure that internal
noise levels due to LAX do not exceed 45 dB CNEL. This standard may be satisfied in
two ways: (1) by performing the acoustical analysis described in section R341.1207.6.06,
below, or (2) by employing the prescribed construction methods described in section
R341.1207.6.07, below.
R341.6 Acoustical Analysis.
A building permit application for a new residence or addition of one or more habitable
rooms to an existing residence must comply with the minimum noise insulation
performance standards established in this section if it includes an acoustical analysis
demonstrating that the proposed design will ensure that internal noise levels due to LAX
aircraft noise will not exceed 45 dB CNEL. The acoustical analysis shall be proven to
meet the standard by providing post-construction/pre-occupancy acoustic measurement
to verify compliance with the 45 dB CNEL standard. The Building Official has the
discretion to implement policies that meet the intent of this code section.
A. The acoustical analysis must be prepared by a person experienced in the field of
acoustical engineering. The analysis must consider and include: the topographical
relationship between LAX aircraft noise sources and the dwelling site, the
characteristics of those noise sources, predicted noise spectra and levels at the
exterior of the dwelling site, the basis for this prediction (measured or obtained
from published data), the noise insulation measures to be employed, and the
effectiveness of the proposed noise insulation measures.
B. If the interior allowable noise levels are to be met by requiring that windows be
unopenable or closed, the design for the structure must also specify a ventilation
Ordinance No. 1680
Page 55 of 87
or air-conditioning system to provide a habitable interior environment, having at
least 2 air exchanges per hour for the affected rooms. The ventilation system must
not compromise the interior room noise reduction.
R341.7 Prescribed Construction Methods.
A building permit application for a new residence or addition of one or more habitable
rooms to an existing residence must comply with the minimum noise insulation
performance standards established in this section if the design incorporates the following
construction methods.
Construction Methods in the 70 dB CNEL and Greater Noise Zone
R341.8 Exterior Walls.
New walls that form the exterior portion of habitable rooms must be constructed as
follows:
A. Studs must be at least 4 inches in nominal depth.
B. Exterior finish must be stucco, minimum 7/8-inch thickness, brick veneer, masonry,
or any siding material allowed by this code. Wood or metal siding must be installed
over 1/2-inch minimum solid sheathing.
C. Masonry walls with a surface weight of less than 40 pounds per square foot must
require an interior supporting stud -wall that is finished with at least 5/8-inch-thick
gypsum wall board or plaster.
D. Wall insulation must be at least R-11 glass fiber or mineral wool and must be
installed continuously throughout the stud space.
E. Exterior solid sheathing must be covered with overlapping asphalt felt.
F. Interior wall finish must be at least 5/8-inch-thick gypsum wall board or plaster.
R341.9 Exterior Windows.
A. Openable Windows: All openable windows in the exterior walls of habitable rooms
must have a laboratory sound transmission class rating of at least STC 40 dB and
must have an air infiltration rate of no more than 0.5 cubic feet per minute when
tested according to ASTM E-283.
B. Fixed Windows: All fixed windows in the exterior walls of habitable rooms must:
1. Have a sound transmission class rating of at least STC 40 dB, or
2. Must be 5/8-inch laminated glass with STC rating of 40 dB and must be set in
non -hardening glazing materials, or
3. Must be glass block at least 3 1/2 inches thick.
Ordinance No. 1680
Page 56 of 87
C. The total areas of glazing in rooms used for sleeping must not exceed 20% of the
wall area.
R341.10 Exterior Doors.
A. Exterior hinged doors to habitable rooms that are directly exposed to aircraft noise
and are facing the source of the noise must be a door and edge seal assembly
that has a laboratory sound transmission class of at least STC 40 dB.
B. Exterior hinged doors to habitable rooms that are not directly exposed to aircraft
noise and do not face the source of the noise must have a minimum STC rating of
35 dB.
C. Sliding glass doors in habitable rooms must not be allowed in walls that are directly
exposed to aircraft noise. Sliding glass doors in walls that are not directly exposed
must have an STC rating of at least 40 dB.
D. Access doors from attached garage to the interior of a residence must have an
STC rating of at least 30 dB.
R341.11 Roof/Ceiling Construction.
A. Roof rafters must have a minimum slope of 4:12 and must be covered on their top
surface with minimum 1/2-inch solid sheathing and any roof covering allowed by
this code.
B. Attic insulation must be batt or blow-in glass fiber or mineral wool with a minimum
R-30 rating applied between the ceiling joists.
C. Attic ventilation must be:
Gable vents or vents that penetrate the roof surface that are fitted with transfer
ducts at least 6 feet in length that are insulating flexible ducting or metal ducts
containing internal 1-inch-thick coated fiberglass sound absorbing duct liner.
Each duct must have a lined 90-degree bend in the duct so that there is no
direct line of sight from the exterior through the duct into the attic, or
2. Noise control louver vents, or
3. Eave vents that are located under the eave overhang.
4. Ceilings must be finished with gypsum board or plaster that is at least 5/8-inch
thick. Ceiling materials must be mounted on resilient channels.
5. Skylights must penetrate the ceiling by means of a completely enclosed light
well that extends from the roof opening to the ceiling opening. A secondary
openable glazing panel must be mounted at the ceiling line or at any point that
provides at least a 4-inch space between the skylight glazing and the
secondary glazing and must be glazed with at least 3/16-inch plastic or
laminated glass. The weather -side skylight must be any type that is permitted
by the building code. The size of skylights must be no more than 20 percent of
the roof area of the room.
Ordinance No. 1680
Page 57 of 87
R341.12 Ventilation.
A. A ventilation system must be provided that will provide at least the minimum air
circulation and fresh air supply requirements of this code in each habitable room
without opening any window, door or other opening to the exterior. All concealed
ductwork must be insulated flexible glass fiber ducting that is at least 10 feet long
between any two points of connection.
B. Kitchen cooktop vent hoods must be the non -ducted recirculating type with no
ducted connection to the exterior.
R341.13 Fireplaces.
Each fireplace must be fitted with a damper at the top of the chimney that is operated
from the firebox and must have glass doors across the front of the firebox.
R341.14 Wall and Ceiling Openings.
Openings in the shell of the residence that degrade its ability to achieve an interior CNEL
rating of 45 dB or less when all doors and windows are closed are prohibited unless
access panels, pet doors, mail delivery drops, air-conditioning, or other openings are
designed to maintain the 45 dB CNEL (or less) standard in the room to which they provide
access.
Construction Methods In The 65 dB CNEL To 70 dB CNEL Noise Zone
R341.15 Exterior Walls.
New walls that form the exterior portion of habitable rooms must be constructed as
follows:
A. Studs must be at least 4 inches in nominal depth.
B. Exterior finish must be stucco, minimum 7/8-inch thickness, brick veneer, masonry,
or any siding material allowed by this code. Wood or metal siding must be installed
over 1/2-inch solid sheathing.
C. Masonry walls with a surface weight of less than 40 pounds per square foot will
require an interior stud wall that is finished with at least 5/8-inch-thick gypsum
wallboard or plaster.
D. Wall insulation must be at least R-11 glass fiber or mineral wool and must be
installed continuously throughout the stud space. Exterior solid sheathing must be
covered with overlapping asphalt felt.
E. Interior wall finish must be at least 5/8-inch-thick gypsum wallboard or plaster.
R341.16 Exterior Windows.
Ordinance No. 1680
Page 58 of .87
A. Openable Windows: All openable windows in the exterior walls of habitable rooms
must have a laboratory sound transmission class rating of at least STC 35 dB and
must have an air infiltration rate of no more than 0.5 cubic feet per minute when
tested according to ASTM E-283.
B. Fixed Windows: All fixed windows in the exterior walls of habitable rooms must be
at least 1/4-inch thick and must be set in non -hardening glazing materials.
C. The total area of glazing in rooms used for sleeping must not exceed 20% of the
floor area.
R341.17 Exterior Doors.
A. Exterior hinged doors to habitable rooms that are directly exposed to aircraft noise
and are facing the source of the noise must be a door and edge seal assembly
that has a laboratory sound transmission class of at least STC 35 dB.
B. Exterior hinged doors to habitable rooms that are not directly exposed to aircraft
noise and do not face the source of the noise must have a minimum STC rating of
30 dB.
C. Sliding glass doors in habitable rooms must have glass that is 1/4-inch thick.
D. Access doors from a garage to a habitable room must have an STC rating of at
least 30 dB.
R341.18 Roof/Ceiling Construction.
A. Roof rafters must have a minimum slope of 4:12 and must be covered on their top
surface with minimum 1/2-inch solid sheathing and any roof covering allowed by
this code.
B. Attic insulation must be batt or blow-in glass fiber or mineral wool with a minimum
R-30 rating applied between the ceiling joists.
C. Attic ventilation must be:
1. Gable vents or vents that penetrate the roof surface that are fitted with transfer
ducts at least 6 feet in length that are insulating flexible ducting or metal ducts
containing internal 1-inch-thick coated fiberglass sound absorbing duct liner.
Each duct must have a lined 90-degree bend in the duct so that there is no
direct line of sight from the exterior through the duct into the attic, or
2. Noise control louver vents, or
3. Eave vents that are located under the eave overhang.
D. Ceilings must be finished with gypsum board or plaster that is at least 5/8-inch
thick.
E. Skylights must penetrate the ceiling by means of a completely enclosed light well
that extends from the roof opening to the ceiling opening. A secondary openable
glazing panel must be mounted at the ceiling line and must be glazed with at least
Ordinance No. 1680
Page 59 of 87
3/16-inch plastic, tempered or laminated glass. The weather -side skylight must be
any type that is permitted by the building code.
R341.19 Floors.
The floor of the lowest habitable rooms must be concrete slab on grade or wood framed
floors.
R341.20 Ventilation.
A. A ventilation system must be provided that will provide at least the minimum air
circulation and fresh air supply requirements of at least 2 air exchanges in each
affected habitable room without opening any window, door or other opening to the
exterior. All concealed ductwork must be insulated flexible glass fiber ducting that
is at least 10 feet long between any two points of connection.
B. Kitchen cooktop vent hoods must be the non -ducted recirculating type with no
ducted connection to the exterior.
R341.21 Fireplaces.
Each fireplace must be fitted with a damper at the top of the chimney that is operated
from the firebox and must have glass doors across the front of the firebox.
R341.22 Wall and Ceiling Openings. Openings in the shell of the residence that degrade
its ability to achieve an interior CNEL rating of 45 dB or less when all doors and windows
are closed are prohibited. Any access panels, pet doors, mail delivery drops, air-
conditioning, or other openings must be designed to maintain the 45 dB CNEL or less
standard in the room to which they provide access.
Section R401.1 of the 2025 CRC is amended to read as follows:
R401.1 Application.
The provisions of this chapter shall control the design and construction of the foundation
and foundation spaces for buildings. In addition to the provisions of this chapter, the
design and construction of foundations in flood hazard areas as established by Table
R301.2 shall meet the provisions of Section R306. Wood foundations shall be designed
and installed in accordance with AWC PWF.
Exception: The provisions of this chapter shall be permitted to be used for wood
foundations only in the following situations:
1. In buildings that have no more than two floors and a roof.
2. When interior basement and foundation walls are constructed at intervals not
exceeding 50 feet (15 240 mm).
Ordinance No. 1680
Page 60 of 87
Wood foundations in Seismic Design Category DO, D1 or D2 shall not be permitted.
Exception: In non -occupied, single -story, detached storage sheds and similar uses other
than carport or garage, provided the gross floor area does not exceed 200 square feet,
the plate height does not exceed 12 feet in height above the grade plane at any point,
and the maximum roof projection does not exceed 24 inches.
Section R403.1.3.6 of the 2025 CRC is amended to read as follows
R403.1.3.6 Isolated concrete footings.
In detached one- and two-family dwellings located in Seismic Design Category A, B, or C
that are three stories or less in height and constructed with stud bearing walls, isolated
plain concrete footings supporting columns or pedestals are permitted.
Section R403.1.5 of the 2025 CRC is amended to read as follows:
R403.1.5 Slope.
The top surface of footings shall be level. The bottom surface of footings shall not have a
slope exceeding one unit vertical in 10 units horizontal (10-percent slope). Footings shall
be stepped where it is necessary to change the elevation of the top surface of the footings
or where the slope of the bottom surface of the footings will exceed one unit vertical in 10
units horizontal (10-percent slope).
For structures located in Seismic Design Categories DO,D1or D2,stepped footings shall
be reinforced with four No. 4 rebar. Two bars shall be placed at the top and bottom of the
footings as shown in Figure R403.1.5.
RECOMffND: a > b
b S 2'0•
Mr , 2-04 REBAR (TOP & B07 TOW)
I.807T0M PLATE (TAT )
GRADE
STEPPED FOUNTATIO S
FIGURE R403.1.5 -STEPPED FOOTING
Ordinance No. 1680
Page 61 of 87
Section R404.2 of the 2025 CRC is amended to read as follows:
R404.2 Wood foundation walls.
Wood foundation walls shall be constructed in accordance with the provisions of Sections
R404.2.1 through R404.2.6 and with the details shown in Figures R403.1(2) and
R403.1(3). Wood foundation walls shall not be used for structures located in Seismic
Design Category Do. D1or D2.
Section R503.2.4 is added to Chapter 5 of the 2025 CRC to read as follows:
R503.2.4 Openings in horizontal diaphragms.
Openings in horizontal diaphragms with a dimension perpendicular to the joist that is
greater than 4 feet (1.2 m) shall be constructed in accordance with Figure R503.2.4.
PLYWOOD SHEATHING
DIAPHRAGM OPENING
d�
�N n N ✓ d� � A y
d r
N. � ✓N �. n d
V °' '✓ .,, .M y ",� � „, r �*mod f ,»'
METAL TIE 16G/A x 1 11Y x 4'-V MIN.. (4 TOTAL)
W/ 16-16d COMMON NAILS AS SHOWN yr
METAL TIE 16GA1 x 1 1/2" x (OPENING WIDTH + 4'4r) MIN.,
(2 TOTAL) W/ 24-16d COMMON NAILS
For SI: I anch a 25.4 mm. I fam = 304 6 m
a. Blockings shall be provided beyond headers.
b. Metal ties not less than 0.058 inch [1.47 mm (16 galvanized gage)] by 1.5 inches
(38 mm) wide with eight 16d common nails on each side of the header -joist
intersection. The metal ties shall have a minimum yield of 33,000 psi (227 MPa).
c. Openings in diaphragms shall be further limited in accordance with Section
R301.2.2.2.6.
FIGURE R503.2.4
OPENINGS IN HORIZONTAL DIAPHRAGMS
Ordinance No. 1680
Page 62 of 87
Table R602.3(1) lines 20, 21,24, 34-37 of the 2025 CRC are amended to read as follows:
TABLE R602.3(1)—continued
FASTENING SCHEDULE
Spacing
Item
Description of
Number and Type of Fastener a b �
and
Building Elements
Location
20k
1" x 6" sheathing to
3-8d box (21/2" x 0.113"); or
Face nail
each bearing
2-8d common (2Y2" x 0.131 °); or
2-10d box (Y x 0.128"); or
2 staples, 1" crown, 16 ga.,
13/" long
2 1 k
1" x 8" and wider
3-8d box (2Y2" x 0.113"); or
Face nail
sheathing to each
3-8d common (2Y2" x 0.131 "); or
bearing
3-10d box (Y x 0.128"); or
3 staples, 1" crown, 16 ga.,
13/" long
Wider than 1" x 8"
4-8d box (2Y2" x 0.113"); or
3-8d common (2Y2" x 0.131 "); or
3-10d box (Y x 0.128"); or
4 staples, 1" crown, 16 ga.,
13/" long
Floor
24k
1" x 6" subfloor or less
3-8d box (2Y2" x 0.113" ), or Face nail
to each joist
2-8d common (2Y2" x 0.131 "); or
3-10d box (Y x 0.128"); or
2 staples, 1" crown, 16 ga.,
13/" long
Other wall sheathing9
34k
'/2" structural cellulosic
1'/2" x 0.120" galvanized roofing nail, 7/16"
3
6
Ordinance No. 1680
Page 63 of 87
fiberboard sheathing
head diameter, or 1'/4" long 16 ga. staple
with 7/16" or 1 " crown
35k
25/32" structural
1%" x 0.120" galvanized roofing nail, 7/16"
3
6
cellulosic fiberboard
I head diameter, or 1'/4" long 16 ga. staple
sheathing
with 7/16" or 1" crown
36k
'/2" gypsum sheathings
1'/2" x 0.120" galvanized roofing nail, 7/16"
7
7
head diameter, or 1'/4" long 16 ga.;
staple galvanized, 1Y2" long; 7/16" or 1"
crown or 1'/4" screws, Type W or S
37k
" gypsum sheathings
13/" galvanized roofing nail, 7/16" head
7
7
diameter, or 1 Y4" long, 16 ga.;
staple galvanized, 1'/2" long; 7/16" or 1"
crown or 11/" screws, Type W or S
TABLE R602.3(1) — continued
FASTENING SCHEDULE
a. Nails are smooth -common, box or deformed shanks except where otherwise
stated. Nails used for framing and sheathing connections are carbon steel and
shall have mini mum average bending yield strengths as shown: 80 ksi for shank
diameter of 0.192 inch (20d common nail), 90 ksi for shank diameters larger than
0.142 inch but not larger than 0.177 inch, and 100 ksi for shank diameters of 0.142
inch or less. Connections using nails and staples of other materials, such as
stainless steel, shall be designed by accepted engineering practice or approved
under Section R104.2.2.
b. RSRS-01 is a Roof Sheathing Ring Shank nail meeting the specifications in ASTM
F 1667.
c. Nails shall be spaced at not more than 6 inches on center at all supports where
spans are 48 inches or greater.
d. Four -foot by 8-foot or 4-foot by 9-foot panels shall be applied vertically.
e. Spacing of fasteners not included in this table shall be based on Table R602.3(2).
f. For wood structural panel roof sheathing attached to gable end roof framing and
to intermediate supports within 48 inches of roof edges and ridges, nails shall be
spaced at 4 inches on center where the ultimate design wind speed is greater than
130 mph in Exposure B or greater than 110 mph in Exposure C. Fastener spacing
applies where roof framing specific gravity is 0.42 or larger. Where roof framing
specific gravity is greater than or equal to 0.35 but less than 0.42 in accordance
with AWC NDS, fastening of roof sheathing shall be with RSRS-03 (2 1/2" X
0.131" X 0.281" head) nails.
Ordinance No. 1680
Page 64 of 87
g. Gypsum sheathing shall conform to ASTM C1396 and shall be installed in
accordance with ASTM C1280 or GA 253. Fiberboard sheathing shall conform to
ASTM C208.
h. Spacing of fasteners on floor sheathing panel edges applies to panel edges
supported by framing members and required blocking and at floor perimeters only.
Spacing of fasteners on roof sheathing panel edges applies to panel edges
supported by framing members and required blocking. Blocking of roof or floor
sheathing panel edges perpendicular to the framing members need not be
provided except as required by other provisions of this code. Floor perimeter shall
be supported by framing members or solid blocking.
i. Where a rafter is fastened to an adjacent parallel ceiling joist in accordance with
this schedule, provide two toe nails on one side of the rafter and toe nails from the
ceiling joist to top plate in accordance with this schedule. The toe nail on the
opposite side of the rafter shall not be required.
j. Use of staples in braced wall panels shall be prohibited in Seismic Design
Category DO, D1 or D2.
k. Use of staples in roof, floor, and braced wall panels shall be prohibited in Seismic
Design Category DO, D1 or D2.
Table R602.3(2) footnote "b" of the 2025 CRC is amended to read as follows:
b. Staples shall have a minimum crown width of 7/16-inch on diameter except as
noted. Use of staples in roof, floor, subfloor, and braced wall panels shall be
prohibited in Seismic Design Category DO,D1,or D2.
Section R602.3.2 exception and Table R602.3.2 of the 2025 CRC is amended to read as
follows:
Exception: In other than Seismic Design Category DO, D1 or D21 a single top plate used
as an alternative to a double top plate shall comply with the following:
1. The single top plate shall be tied at corners, intersecting walls, and at in -line
splices in straight wall lines in accordance with Table R602.3.2.
2. The rafters or joists shall be centered over the studs with a tolerance of not
more than 1 inch (25 mm).
3. Omission of the top plate is permitted over headers where the headers are
adequately tied to adjacent wall sections in accordance with Table R602.3.2.
Ordinance No. 1680
Page 65 of 87
TABLE R602.3.2
SINGLE TOP -PLATE SPLICE CONNECTION DETAILS
TOP -PLATE SPLICE
CONDITION Corners and Intersecting walls ButtJoInts In
Splice plate size halls
eacchhMInssiddo nails
Splice plate size
e
Structures In SDC A-C; and In ` E)G 3" x 6" x 0.036" (6) 8d box 3' x 12" x 0.036"
galvanized steel late
L1Q,,.L1t.andLlz Wooed galvanized steel plate (21/2. x 0.113'� nails g p
or equivalent or equivalent
"" Ao9r end Dj, "40t g 4LX 8" i { 3—x 44LX 070N,=
�fj sk
r,
Inch = 1b.4 mm, I fool = 5114.6 mm.
Section R602.10.2.3 of the 2025 CRC is amended to read as follows:
Minimum nails
each side ofjolnt
(12) 8d box
(21/2" x 0.1IT) nails
J+"14*:
�?= 0444i
R602.10.2.3 Minimum number of braced wall panels. Braced wall lines with a length
of 16 feet (4877 mm) or less shall have a minimum of two braced wall panels of any length
or one braced wall panel equal to 48 inches (1219 mm) or more. Braced wall lines greater
than 16 feet (4877 mm) shall have a minimum of two braced wall panels. In Seismic
Design Category Do,D1,or D2,no braced wall panel shall have a contributing length less
than 48 inches in length or as required in Section R602.10.3, whichever is greater.
Table R602.10.3(3) of the 2025 CRC is amended to read as follows:
Ordinance No. 1680
Page 66 of 87
TABLE R602.10.3(3)
BRACING REQUIREMENTS BASED ON SEISMIC DESIGN CATEGORY
... ..... ........... _ ..... ..
SOL CLASS
0 WALL HEIGHT* 10 FEET MINIMUM TOTAL LENGTH EET) OF BRACED WALL PANELS
FLOOR DEAD
LOAD
15 P F D LOAD REQUIREDAL EACH C WALL E®
BRACED WALL LINE SPACING -; 25 FEET
................
MethodsBraced Wal Line mathods
Seismic DWB. SF8, PBS. Method
C St L (floe U GB P. HPS, CS- CC
SF'-t
10 2.5 2 ,5 1.6 I'll
2 5.0 5.0 n.3 2.2 2.2
30 T5 15 2.r, 1,0' 1.1
.10 10110 10.0 10.0 6,11 4
50 12,5 12.5 12.5 0.0 0.0
10 NP 35 _ 1.5 3.0 2h
20 NP 9" 0 go
0 30 NP 1�35 13.5 �1.0 73
Q�va�h�aa��.� Only)
10 NP 10.0 18.0 120, 10.2
so itiP 225 22.5 13.01 12.5
... .......�....w v .,�,^p�
10 NP 0.01 6.0 I, m 3.3
20 N11 12.0 12.0
:30 N� 13 10.0 10.0 13 '.5 11 5
30 NIP N 01 23.0 1&0 15.3
50 NP .0I 30.0 2�2.5 10.1
10 ro11g x �A1 44 �A 1.0' 1.6
l 20 N1" 3.6 3.1
30 NP 94 LOU 15 SA 3.6
.10 N111 �2.14 I..1 72 0.1
50 NP 1 2 1••• •.6, 0.0, 2.3
10 NP DT. L�3� 3.8 3.2
20 ti1$ F» tl° 3', 5 31.1
Do 30 NP 4" M r 9.. 11.3 0.0
40 NV11 2 NE 150 110
so N 3� .' 11, 13,8 1m3'o
20 NP 444 M A& 10. a3 0.0
30 NP 1•4 b? 24-4 NNE 15.13 13A
40 NP ". a 21.0 1 tq
50 NP a• 6.3 NE 20.3 22.3
Ordinance No. 1680
Page 67 of 87
TABLE R60210 3131 c Orland
BRACING REQUIREMENTS CASED 6N SE '$S IC DESIGN CATEGORY
SOIL CLASS
WALL HEIGHT . 10 FEET MINIMUM TOTAL LENGTH (FEET) OF BRACED WALL PANELS
10 PSF FLOOR DEAD LOAD REQUIRED ALONG EACH BRACED WALL LINE'
15 PSF ROOFICEILNG DEAD LOAD
BRACED WALL UNE SPACING 2S FEET
__ ....... _�..
Braced Wall Lim I DWB. SFB. Method Methods
Seismic Design Story Location Urr¢h Method LBa Method GB Mm, FOP WSP CS•WSP.
Caegory (�C tips, C4 CS•G
t 1
10 NP 3 9 h_o 38 h o 2.0 1.7
20 NP &9 1;_0 69 J; 0 .1.0 3.•1
30 NP 9A 1 9A L>£4 6.0 5.1
40 NP + 2-0 ,.1 o +LLO Za 8.0 68
50 NP 4" 300 4bAto 10.0 85
10 ti P 64 frA �1 •1.5 3 8
20 NP 4,24 a 4442 90 7.7
p t 30 Nil 4" ►a 4" :ZX 13.5 11.5
40 NP 249 M '442 180 153
5o Nil 494 .2 39 9 JY 225 191
.... _ .. ..�.,.,., ...._..ro�.... .............. ......... a .....W.._�-
10 N P " ;y 8-01 a 60 5.1
20 NP +;9 `P +;LA 12 110 10.2
30 Nil 2-5-11 a 180 15.3
40 Nil 4" 34-0 a 240 204
50 NP 4" 4&; a 300 25.5
10 NP 44 so I� � 2.5 2.1
20 NP 84- 160 8$- 1600 5.0 13
rJ 30 NP kLQ- 2-� oo LG-± 00 7.5 6.4
40 NP W,4- s_0 Hj4- a_2 0 10.0 8.5
50 NP 298- to o 20-9-.tr>.0 12 5 106
10 N P 4--e a ;_e a 5.5 4.7
20 N P +48 U 4" 12 I I 0 IA
30 NP 3_LL.3 NE '' �; a`.oE 16,5 1.1,0
40 N P 3A4 a 44.0 M 22.0 18.7
50 NP �Lt W4 a 27 5 23A
10 NP NP NP NP \P
20 NP NP NP NP NP
30 NP NP NP NP NP
40 NP NP NP NP NP
50 NP NP NP NP NP
10 NP NP NP 7.5 6A
ZO NP NP NP 150 128
Cripple Storywall below 30 N1' NP NP 225 19.1
one or two Story d+velllrtq
40 N1) NP NP 300 25.5
5o NP NP NP 37 5 319
a. Linear interpolation shall be permitted.
b. Interpolation of bracing length between the Sds values associated with the seismic
design categories shall be permitted when a site -specific Sds value is determined
in accordance with Section 1613.2 of the California Building Code.
c. Where the braced wall line length is greater than 50 feet, braced wall lines shall be
permitted to be divided into shorter segments having lengths of 50 feet or less, and
the amount of bracing within each segment shall be in accordance with this table.
Ordinance No. 1680
Page 68 of 87
d. Method LIB shall have gypsum board fastened to not less than one side with nails
or screws in accordance with Table R602.3(1) for exterior sheathing or Table
R702.3.5 for interior gypsum board. Spacing of fasteners at panel edges shall not
exceed 8 inches.
e. Methods PFG and CS-SFB do not apply in Seismic Design Categories DO, D1 and
D2.
f. Methods PFH, PFG and ABW are only permitted on a single story or a first of two
stories.
g. Where more than one bracing method is used, mixing methods shall be in
accordance with Section R602.10.4.1.
h. One- and two- family dwellings in Seismic Design Category D2 exceeding two
stories shall be designed in accordance with accepted engineering practice.
i. Methods GB and PCP braced wall panel h/w ratio shall not exceed 1:1 in SDC DO,
D1 and D2. Methods DWB, SFB, PBS, HPS, and CS-SFB are not permitted in DO,
D1 and D2.
Table R602.10.4 of the 2025-CRC is amended to read as follows:
Ordinance No. 1680
Page 69 of 87
TAW E PC, 72,10 4
8PACMG VETHODS
. . ........
. .... .
U)"WrOTICIN C411TIRIA.
0801111005, MA,1111ERML
MAMMUM TW KNESS
RGUM
........ . .... -11,11,111,
Fmi;;� . . . ..... . .........
.......
4 IMMIJ Ut
...... . . .... . ........
. .. . . ...............
14004d� 2 &J Comma muls, iDt
4d: permod and top
BMW
Ld in bmcwg
al V5, lc� 61), J'a"Hk-6
771
3 M (27f,o kmg 111) 111- duj "1%
. . . . ..........
bralam pLow%
Mcial
fur la"nifuum
wrtap: �A'r Tvm&x RAM, 9
jwr
Man A rx v, vt
mwi I
..........
Dwil
1111,11 WAluaw) log
n"lixinum 24 Mwjurl
T
kluxl
Dw,; 6moi A,mxoJ Lairip
%pKins
2, 10q; iiu�m
It
wo woo 14 w4w I 10 'IJ i
"i �-,40�44,
F
G" ro lf,;m I?' FAd
... .......
;moml� 010 141po'dool 4014;o
('%N S09 I 1m
rop
Its by fam ivv irl
t�SbltlQ10
pwiv1% mmg0slow CA'
vew"
Flmmmv
�0
Commum mAh,
i'zr
0SAre Scow*
pol"u,
......... - .
.............
SM
. .... .
J,
........... . . ....
. . . .
U.!," dw, i dmx k
T ntprs rp" Crid
ng
oud SpriW.
Mili;� A
. . ............ ..
Xakh, cc screm"'; plor I'Afhkl, R(Q.300
spa
k"I Rwilor berm' wkmm
p3nol
C, B
DEE'.
Naor acrcm �xr
b
7'�mffvm
a"j,
I We R702.1S Awimervir
1(ocoiksis
.
................ . ....
or
77
Ad o:, mww w
'I"Mmov �. "
&v Svil. REVS)
jhing
0 m3 t ' dim) nx&
FICP
:ter Sevokm R703 G
fog vml,,,xmum RG,
I I "'t-c V 20" It's
� 0
40 ".mom
mml%
G" V C. 111361 All rfXVJ�Ag
whild spw�ng
—4
pgy la"Irslip%
Ewa
fkx 111TWAximilliM
o.
M2- dia 0,225,111, && h, md
con itfi loq;,th 1!:,-
4 Agrz 8" field
Hardi-moid pwaxpel 4d6nG
IG- imawl 'mjxTart`, ml'q
1AAA k9U %Wk
ARW
-J— I F I'
: Ser 1602. 106A
v an
RGUAGA
(ay,ndnastfi
Ordinance No. 1680
Page 70 of 87
TABLE R602.10.4—continued
BRACING METHODS
CONNECTION CRITERIA'
METHODS. MATERIAL
,�o
MINIMUM THICKNESS
FIGURE
Fasteners
Spacing
�Sc�e^�St'chora,.o, .o..o...
�
PFH
�
V
Portal frame with hold.„„„"""""""�
a
See Section RG02.I0 6.2
R602,10,6.2
a,
downs
PFC
;/
V
See Section R602.10.6.3
See Section
c
Ponal frame at garage
pc
6 2,10.6.3
-...
°.....
...... »
r �arrr�'+ �n 4I t, wf) i ail uro�:
n err m cw ,',QQ
s � �.
R682.9(3) 11,
,
G" edges 12 field
VSP
Continuously sheathed
'/s
wood structural panel
M
Varies by fastener
Tr,vrCar„dw"�If2l Q tIT) PlfIis
p� e xo p m
1 N 4°'
CS-Gb. c
Continuously sheathed
r ..
y
wood structural panel
'l '
See Method CS-14SP
See Method CS-WSP
=
adjacent to garage
_ d
openings
.... ......,.
'l.
2
CS•Pl
Continuously sheathed
'/o."
d
See Section R602.10.6.4
See Sction
R602 iQ 6,4
portal frame
dw...�... ..... �.��.. .��....
�o.o.o.� .�»��
,I/-,•Of"/k-for
,� m... ....w.
�.., �...,o ..�,............ ........,
e...�..
I..$•$FKa
Continuously sheathed
maximum16"O
r ,..<_ ll"N
��
Ell'
m dulreg
ilrrr d.«ilbtifl, lti'^�tth tlai+i t,"O
di,l,(for
3" ed es 6`° field
g
fiberboard
0.1,E rrv. thkksheathing)
structural
stud spacing
,..
gcMlr,rsliatltsoiing ot;aiis
For S
C I Inch = 25.1 mm, I f =
� �. -
30E , 4.mmI de grce = . 00175
r� .. .... n
�d. 1 pn d pa^r sgcasrc
I t = 47_!i N;m,'. 1 mile per h®ur = 0.447
ntlx.
a. Adhesive attachment of wall sheathing, including Method GB, shall not be
permitted in Seismic Design Categories C, DO, D1 and D2.
b. Applies to panels next to garage door opening where supporting gable end wall or
roof load only. Shall only be used on one wall of the garage. In Seismic Design
Categories DO, D1 and D2, roof covering dead load shall not exceed 3 psf.
c. Garage openings adjacent to a Method CS-G panel shall be provided with a
header in accordance with Table R602.7(1). A full -height clear opening shall not
be permitted adjacent to a Method CS-G panel.
d. Method CS-SFB does not apply in Seismic Design Categories DO, D1 and D2.
e. Method applies to detached one- and two- family dwellings in Seismic Design
Categories DO through D2 only.
f. Methods GB and PCP braced wall panel h/w ratio shall not exceed 1:1 in SDC DO,
D1 and D2. Methods LIB, DWB, SFB, PBS, HPS, and PFG are not permitted in
SDC DO, D1 and D2.
g. Use of stapes in braced wall panels shall be prohibited in SDC DO, D1 and D2.
Ordinance No. 1680
Page 71 of 87
Table R602.10.5 of the 2025 Edition of the CRC is amended to read as follows:
TABLE R602.10.5
MINIMUM LENGTH OF BRACED WALL PANELS
MINIMUM LENGTH*
METHOD finches) CONTRIBUTING LENGTH
(See Table R602.10.41 Wall Height (inches)
8 feet 9 feet 10 feet 11 feet 12 feet
1)116113. WS11, sl:ll. PIK 1101, 1 fix%. Bv-WSll 49 48 49 53 5X
G13 48 .18 .18 53 I'knible sidW - AcItud
Shnele mded � 0 5 Actual
1.111
i5 62 69 Nil Nil ActimP
I C' kiltilliale
&%qgn 2s 32 4.1 IS 12
AM ind q�-.W < I -V I niph 49
D,,. D1,01d IT Muni Z,
design 32 32 34 Nil NP
wind qxW < 140 111141
CS-6 -141 27 30 36 ActuP
%djawil ckar opai ing hophl
24 27 33 36
68 26 27 10 i3 36
27 27 30 36
7(, (1 29 10 as 16
80 12 "o ?(t 36
K4 35 32 36
88
92 .1 ®7 V; 15 36
1)6 1 48— -11 ,,s 7 (—, 71(,
c. S-W'Sl" cs-sl:l I I oo 44 40 3s 38
1 9 j3 40 Actud'
lips 5.1 46 -13
112 —7-0 45 —41
116 35 8S 4-;
120 52 48
12-4 56 51
128 ol _q
I s
:u tip
I
140 6672
14.4
ME I 1101) Portal header height
i See'I'Jhle R602 11) 8 b 8 feet 9 feet 10 feet 11 feet 12 feet
I"II T1111. roof only 4424 -W.;L4 44 2A Note c Note C
Snpportitt'Js
t one %(ory and Tool 2 t 24 14 T�ote c Note c
PFG 2.1 27 30 Note d Note d 1 5 > delimit'
CS-111'
rid C 16 1 s 20 Not, e Note e 1.5 ^ AcItud'
---t —
SI)c 1)", 1)"Ind DL 2 44* 24 1 -"19 24 2.1 Note e Note e Actuall J____L_
For Sl: 1 inch = 25.4 mm, 1 foot = 304. 8 mm, 1 mile per hour = 0.447 m/s.
NP = Not Permitted.
a. Linear interpolation shall be permitted.
Ordinance No. 1680
Page 72 of 87
b. Use the actual length where it is greater than or equal to the minimum length.
c. Max imum header height for PFH is 10 feet in accordance with Figure R602.10.6.2,
but wall height shall be permitted to be increased to 12 feet with pony wall.
d. Maximum header height for PFG is 10 feet in accordance with Figure R602.10.6.3,
but wall height shall be permitted to be increased to 12 feet with pony wall.
e. Maximum header height for CS-PF is 10 feet in accordance with Figure
R602.10.6.4, but wall height shall be permitted to be increased to 12 feet with pony
wall.
Figure R602.10.6.1 of the 2025 CRC is amended to read as follows:
Ordinance No. 1680
Page 73 of 87
PANEL LENGTH PER
TABLE RW2,105
15=
MIN WW000
STRUCTURAL PANEL
SHEATHNG ON ONE FACE
6691 ? xS -'QAKV.G'/P3 ^^ ^
DOUBLE STUDS REOURtED
l2) HOLD-DOWN OR i2) STRAP -TYPE
ANCHORS PER TABLE R60210 Q 1
OF EACH SHOWN FOR CLARRY1
ST RAP-T Y PE AHCHO IRS SHALL BE
PERMITTED TO BE ATTACHED OVER
THE WOOD STRUCTURAL PANEL
PANEL MUST BE ATTACHED
TO CONCRETE FOOTING OR
CONCRETE FOUNDATION
WALL CONTINUOUS OVER
BRACED WALL UNE
(2) 1ir DIAMETER ANCHOR
BOLTS LOCATED BETWEEN
V AND 12' OF EACH END OF
THE SEGMENT
FOR PANEL SPLICE OF NEEDED)
ADJOINING PANELEDGES SHALL MEET
OVER AND BE FASTENED TO 0OMM0II
FRAMING
$0 COMMON eR9*'0. SON NAILS @ e-
O C AT PANEL EDGES FOR SINGLE
STORY AND 0 C 0 C PANEL EDGES
FOR THE FIRST OF 2STORIES
STUDS UNDER HEADER AS REOUIRED
80 COMMOI44& "Ii-DWG NAILS @ 1r
0 C. AT INTERIOR SUPPORTS
MIN. REINF ORCINO OF FOUNDATION,
ONE IM BAR TOP AND BOTTOM LAP
BA RS i5i MI NW UMI
MIFmILIM FOOTING SIZE UI40ER
OPENING IS 1Z' x 12' A-: D 88WIl
FIGURE R602.10.6.1
METHOD ABW—ALTERNATE BRACED WALL PANEL
a I.inear interpolation shall be permitted.
b. Use the actual length where it is greater than oraqual to the minimum length.
c \Iaximum header height for PFI I is 10 feet in accordance with Figure; R602.10.6.2, but wall height shall be permitted to be
increased to 12 feet with pony mll.
d Aiammum header height for PFG is 10 feet in accordance with Figure; 11602.10.6.3, but 11 all height shall be permitted to be
increased to 12 feet with pony wall.
e Jiammum header height forCS-PF is 10 feet in accordance with figure R602.10.6.4, but wall height shall Ix permitted to be
increased to 12 feet with porn wall.
Figure R602.10.6.2 of the 2025 CRC is amended to read as follows;
Ordinance No. 1680
Page 74 of 87
FIGURE R602.10.6.2—METHOD PFH—PORTAL FRAME WITH HOLD-DOWNS
fXMT OC "EAGER %Mi DOUBLE PORTAL FRAMES OW BRACED W+1 IAN9 1.
iuumullUu'TiAuiFi
r* aAT4„ ........
1
6"
«,..
µ �
i"0
o np M
Y W b k $4tl, fv 4Z 111LY 4 �d.,°.y. !IM! PoWW A S CO, u'��,M$
f
w A ✓, w wrwuw+ w41
616 R fti Y PA4.*L
Y,447 LP4 "+, : rvt,Ad'tH VAru rd"v
Iwo riG Gd 'b hurrtJ�u&
CAVIUCus
rA,.YN4,4r 6CK ,, Tx'OAO
M"rXA,Ai
IRAa 1w., uygJAW 041&fog
^"^
Ae
w
FADER TO JACV.VuD STRAP r[R USLE m _.
y,
��� -v„.
om 1064 ON BOTH sloes OF OPNIMG
wWAq A >� auafu r r
c,, wm 54
t
OPOM1E 641E Of SWATW/G
,&
n du. ura w
6h✓ H%V 1W °y Q, @,W PiAj N5 is fN,,,
Ud1
1N rAy ,. rwr1rs CC 0 ..,.
Aw W 4rk N m WIftA K%"iW * v"u r0PO4
reWP3V a A OK,5 V",P rcrar L0 u k�4 `�C r
rT�u ,l
4wIG AAI NBC Jed
�
wP luw rv,lNv P T� m F 0k,1u A,yr NOT %": 11NTH W f
'ti @ ?G, SMMTN04 i
FRAVE CORTAL
FRAME CdfST10JCT1CW
R".uN G'F'vrJ" VU�t.R.�, r+Nn IW
X7A/yrN U04,,n41 PPa °�,, VKAO k.L eX,
q
�N, r„Agr�sA�i�4fl,NN.s 04Cxh .
M % 4 ," A,1",
�av �.«
u116A r �du 6'y y'p}
uAN L04TH OF F"ML PER TABLE RN: iD.S
ull3'M~�A;6 ,� y 1r,un"r"
'«?fit& � �r's ��
k9AYf VA iv �` Ir 9F'W,"e I A i" 'p di�N frv4"
z,o
�ll,'Pa �aiva 6. i."` AT 1w dAutvm
.r,N'Ai
,,,,,,,,,,�. _.,„
&
% IMw, ma „ 4F t t l tA� 0 q V '�w „hv,M 4 'I &.'N I urvm WB, �G
rw "IS"di M«W"p 1A 7r dre>m '..A 1^"ur 1 N .0AW1AAJ 1x '
tl�+'G 4 V rm ��6
4 B arek8
Tit
6A�" d&At �ufl
airr
pith f rYI T 0 a "RV µtl f 14, A t
d
Uog afll 4AaPRbFDA f ,6tl6 N t Bd4.,4r IP�A
t-, dwo (6,RW,A q,, .Mi'U vt. n k,o4,rC
FRONT ELEVATION
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
Note: Header shall not extend over more than one opening.
Figure R602.10.6.4 of the 2025 CRC is amended to read as follows:
SECTION
4WY tib tl X4 Uti l'J �'
A"AifpO'r4�k"N1 ¢A"W tl'pWrd9.
F
rA6TER TOP
PLATE TO
MEAGER Mr"
TV"D
SNUAIALS AT
S o e TYP
ROC, 11 URAR
Ordinance No. 1680
Page 75 of 87
FIGURE R602.10.6.4-METHOD CS-PF-CONTINUOUSLY SHEATHED PORTAL FRAME PANEL CONSTRUCTION
CORTINWJSLY SHEATHED BRACED
A'AII PAAFL\Ir P TING WNIIIJUNI
LENGTH REOUIREIAENTS OF TABLE
+" R6021U5
EXTENT OF HEADER VAT. DOUOLC PORTAL-RAVES;TWO BRACED 11'A11 1%111 ,'&,A ^-^
fATV N IA e r u N A'411' 44I 1r A�rd 94AW,
�^^ tl 11 daJ RJh N ,J d /.I T`pk Pt G ;rT %'
*FN—,ION STRAP
h fll"YpW it 74,udX
TABLE W2 '6 OPPOSITE SIDE
,y['ht P I ., II mTga
@ 4
wrgw d6b k ,'"�
04,
DIYT 4f�dIF� N3'I'kNUSED ERSTEN HEAVER
NE e�aH, I,) YOU e11&
.. .
ACK
IS USED
EON HEADER PRDH-SITEL7 r" v TiTtlpU«JM,.+'ro�L u' °Pr :Mtle �l'.7 � �p �yy
�c ADER V,°dCT'�Ht 4OCe u 9 Atl ld4 Tw:, iW %. �ti
ry�„".�.,...............,....e, ,x..«""„,.«"�."..M.. ..""v'"" PANT "m
FASTEN SHEATHING TO HEADER VAT), 110 X4T i'4 1 tl"UI la Sw�
CO\PAGN IXt GALVANIZED BOX Nf•:LS IN ]' GH,D VLf' L W N k, aw °; ` NA tl)ku TOP
w
I PAT IEHNAN%HOININ J N;:Ifi (o,0�Nn bl aS ". %"NA H„Ilfd'
yd rir ql¢d fNJ'46/Y"+ a HEALS H'AIIH
".'h""—,Iw 4�`fi ;+lNa 'uk N P1 �4,,!.
i HEADER T' 01, B TH S!DLS F PER TAKE � 'AI IN,KC o A i 3 II RC IA'S OF IED
RiU2 'Unc OA BOTH SIDES OF OPEN,IIG ,ITt(fi 6L)I IIIOICW '- SINKER NA'LS AT
OPPO517E S.CE O= SHEATHING pry,, ,4cN a- ) nlc 3' O C TY-
h
u4 m.- Gs w'�.4 B4�Rr'V 6l1, rbMq�xA
� +� � rvITrh lu at NCaPnk.. 'LTi"
—V,11 DOLRLE 7,4' FRA\NiG COVERED'A'ITH I,!'% ..—RIb4 `"'d9ylyr'y
9 T.IICK vxoD STRICTURAL PANEL SV EAT). %G r
1'IITH BD COMMON OR GALVANIZED BOX N AILS AT FRAMER. PORTAL P ""• T'' f rw ff V rRtl.
o FRAME CC/VS'RUCT:(%`l -mm�., ,1x 1AMJ Y
3' O C IN ALL rRAAIIM^a ISTUGS ,Hd.R r4oa)
RI COKING Alin i4l S) TYP �a•
•••••,•AINN t'C, JAtld
IA LENGTH Cr PANEL PER TABLE R502 10 5 } I^�,K; d\. Af ,N;d Na +.;43'111.
N
ttd'e91K,RO JACK
)X H' TBl RTARIFS
\IIN. 11)',' D'ALIETER ANCHOR BOLTS R !X d."te t a A 12 y
,NSTAI I FD PFR 3FCTICN RAU3 I E'A'ITH de
1.-E 'Ji 1,R y�
: d
mw T +n
~M,
OVER CONCRETE OR MASONRY BLOCK FOUNDATION mow,, „ANCnCR BOLTS PER
SECTION R4031 S
r RAWNGA'YHORS NY„mu
n HD0 N¢rro
w^ d IF fl OPA I;A E dI NA. I'TI ry{W fink AAA +"
I
A'wnW NA L SOL PLATE' NAIL SCLE
fi
TO CSTPER '-"" 4dFS"4/ vTv IrA flAI�IK "»p ". "
NR Id T Bl RAA Ail'
r 1ti! t Mtl A 7ntr^—"ry "1 PLATE TO:C:ST
aT`4 ,A"o-lh,✓wp r„IVwP r,7 �, dm w " ,„."„ PERTABLE
1 RN+rdN Nkd OP p'
011 ".w• RnR..3117
.. •^ 1 1• AICVO STNUCI URALN) I...d �I1 ..-"' • """"" APPR04ro w n
e,y+•" W )J 4F fdf * V 1 G + ryulRp d RIIA JOIST .11111. Y�IST
OVER RAISED WOOD FLOOR - FRAMING A;NCFIOR �YN u�
11'I1I PORTAL SHEATI'114G DOES NOT LAP OVER BAND OR RIM ;V, TI
IIP"Tw
molm
NAIRo ",1 Y00 WA; L7{ P APF"^ " NAIL SOLE
w .STNdTr 11 Pa.A 'T AT 3" " �•••IT PI ATF. iO_
U A7u 'dtlw;,. Ir MtlF°1"I",64 b f+l% 1 F F{ T iN 1V`Y N 6 Afi NCM1Wf d
O ue A'° ➢N MMX.' gJdftl.W Vie ! 1. ,I} `" f XY'Pd IP ')I411 TA TVN "' PCRTAPLEC6T
GPM,
J'G f7Ll°"AT R&02311i
uo
A-#CCD STRUCTURAL PANEL SPCATII NG ONLR APPROVED DAND OR RIIV..!I' , a "'"' "a n l7yn; APu11RO+JE•D ""NO
„�„ " �Wlulom
OVER RAISED WOOD FLOOR • OVERLAP OPTION
,)-#HERE PORTAL SHEATHING LAPS OVER BAND OR RAM BOARD)
FRONT ELEVATION SECTION
For Sk 1 inch - 25.4 Trim. 1 loot - 304.8 mm.
Note: Header shall not extend over more than one opening.
Section R606.12.2.2.3 of the 2025 CRC is amended to read as follows:
R606.12.2.2.3 Reinforcement requirements for masonry elements.
Masonry elements listed in Section R606.12.2.2.2 shall be reinforced in either the
horizontal or vertical direction as shown in Figure R606.11(2) and in accordance with the
following:
1. Horizontal reinforcement. Horizontal joint reinforcement shall consist of least one
No. 4 bar spaced not more than 48 inches (1219 mm). Horizontal reinforcement
shall be provided within 16 inches (406 mm) of the top and bottom of these
masonry elements.
Ordinance No. 1680
Page 76 of 87
2. Vertical reinforcement. Vertical reinforcement shall consist of at least one No. 4
bar spaced not more than 48 inches (1219 mm). Vertical reinforcement shall be
within 8 inches (406mm) of the ends of masonry walls.
Section R803.2.4 is added to Chapter 8 of the 2025 CRC to read as follows:
R803.2.4 Openings in horizontal diaphragms.
Openings in horizontal diaphragms shall conform with Section R503.2.4.
Section 905.3.1 of the 2025 CRC is amended to read as follows:
R905.3.1 Sheathing requirements. Concrete and clay tile shall be installed only over
solid sheathing.
Exception: Spaced lumber shall be permitted in Seismic Design Categories A, B, and C.
Section R1001.3.1 of the 2025 CRC is amended to read as follows:
R1001.3.1 Vertical reinforcing
For chimneys up to 40 inches (1016 mm) wide, four No. 4 continuous vertical bars
adequately anchored into the concrete foundation shall be placed between wythes of solid
masonry or within the cells of hollow unit masonry and grouted in accordance with Section
R609. Grout shall be prevented from bonding with the flue liner so that the flue liner is free
to move with thermal expansion. For chimneys more than 40 inches (1016 mm) wide, two
additional No. 4 vertical bars adequately anchored into the concrete foundation shall be
provided for each additional flue incorporated into the chimney or for each additional 40
inches (1016 mm) in width or fraction thereof."
SECTION 4. Section 13-3-1 of Chapter 3 of Title 13 of the ESMC is repealed and replaced
by the following to read as follows:
CHAPTER
ELECTRICAL CODE
13-3-1: ADOPTION OF CALIFORNIA ELECTRICAL CODE, 2025 Edition:
Pursuant to California Government Code Section 50022.2, the California Electrical Code,
2025 Edition, published as Title 24, Part 3, of the California Code of Regulations, including
all Annexes except H, ("CEC") is adopted by reference, subject to the amendments,
additions and deletions set forth in Section 13-3-2. One true copy of the CEC, is on file in
the office of the Building Official and is available for public inspection as required by law."
_SgCiIO .. Sections 13-4-1 and 13-4-2 of Chapter 4 of Title 13 of the ESMC are
Ordinance No. 1680
Page 77 of 87
repealed replaced by the following to read as follows:
CHAPTER 4
MECHANICAL CODE
13-4-1 ADOPTION OF CALIFORNIA MECHANICAL CODE, 2025 EDITION.
Pursuant to California Government Code § 50022.1 to 50022.8, the California Mechanical
Code, 2025 Edition, published as Title 24, Part 4, of the California Code of Regulations,
including all Appendices except A and E ("CIVIC") is adopted by reference, subject to the
amendments, additions and deletions set forth, below. One true copy of the CIVIC, is on
file in the office of the Building Official and is available for public inspection as required
by law.
13-4-2 AMENDMENTS TO THE MECHANICAL CODE.
Section 104.0 of the CIVIC is hereby amended to read as follows:
CIVIC Section 104.0 Permits, is deleted in its entirety. The 2025 California Building Code,
as incorporated into the El Segundo Municipal Code, will govern the administration of the
CIVIC.
Section 104.5 of the CIVIC is hereby amended to read as follows:
CIVIC Section 104.5 Fees, is deleted in its entirety. The 2025 California Building Code, as
incorporated into the El Segundo Municipal Code, will govern the administration of the
CIVIC."
Section 107.0 of the CIVIC is hereby amended as follows:
CIVIC Section 107.0, Board of Appeals, is deleted in its entirety. The 2025 California
Building Code, as incorporated into the El Segundo Municipal Code, will govern the
administration of the CIVIC.
SECTION 6. Sections 13-5-1 and 13-5-2 of Chapter 5 of Title 13 of the ESMC are
repealed and replaced by the following to read as follows:
"CHAPTER 5
PLUMBING CODE
13-5-1 ADOPTION OF CALIFORNIA PLUMBING CODE, 2025 EDITION.
Pursuant to California Government Code § 50022.1 to 50022.8, the California Plumbing
Code, 2025 Edition, published at Title 24, Part 5, of the California Code of Regulations,
including all Appendices except for C, F, and L ("CPC") is adopted by reference, subject
Ordinance No. 1680
Page 78 of 87
to the amendments, additions and deletions set forth below. One true copy of the CPC,
is on file in the office of the Building Official and is available for public inspection as
required by law.
13-5-2 AMENDMENTS TO THE PLUMBING CODE.
Section 104.4 of the CPC is amended to read as follows:
CPC Section 104.4 Permit Issuance, is deleted in its entirety. The 2025 California
Building Code, as incorporated into the El Segundo Municipal Code, will govern the
administration of the CPC.
Section 104.5 of the CPC is hereby amended to read as follows:
CPC Section 104.5 Fees, is deleted in its entirety. The 2025 California Building Code, as
incorporated into the El Segundo Municipal Code, will govern the administration of the
CPC."
Section 107.0 of the CPC is hereby amended to read as follows:
CPC Section 107.0, Board of Appeals, is deleted in its entirety. The 2025 California
Building Code, as incorporated into the El Segundo Municipal Code, will govern the
administration of the CPC.
Section 1211.8 of the CPC is hereby amended to read as follows:
1211.8 Seismic Gas Shutoff Valves.
1211.8.1 Scope. A seismic gas shutoff valve shall be installed in compliance with the
requirements of this section on each gas fuel line in the following:
1211.8.1.1 Any new building or structure.
1211.8.1.2 Any building or structure which is altered or expanded when such alteration
or addition is valued at more than $250,000.
1211.8.1.3 When an individual condominium unit is sold in a building that has multiple
gas lines, then the requirements of this section shall apply only to the line or lines serving
the condominium unit that has been sold.
1211.8.2 Maintenance. Where the installation of a seismic gas shutoff valve is required
Ordinance No. 1680
Page 79 of 87
by this section in any building or structure, that seismic gas shutoff valve shall be
maintained for the life of that building or structure or shall be replaced with a valve
complying with the requirements of this section.
1211.8.3 General Requirements. Where the installation of a seismic gas shutoff valve
on a fuel line is required by this section, that valve must:
1211.8.3.1 Be mounted rigidly to the exterior of the building or structure containing the
fuel line unless the Building Official determines that the seismic gas shutoff valve has
been tested and listed for an alternate method of installation.
1211.8.3.2 Be installed downstream of the gas utility meter, except that a valve may be
installed upstream of the gas utility meter at the discretion of the gas utility if the valve
would otherwise meet the requirements of this section.
1211.8.3.3 Be listed by an approved testing laboratory and certified by the Office of the
State Architect.
1211.8.3.4 Have a thirty-year warranty which warrants that the valve is free from defects
and will continue to properly operate for thirty (30) years from the date of operation.
1211.8.4 Critical Facilities. The requirements of this section shall not apply to any
building that is used by any public agency for the provision of emergency services,
including fire, police, and similar public safety services, provided the following:
a. That the building or structure has available 24-hour, year-round maintenance
staffing; and
b. That the gas piping system contained in the building or structure is designed to
withstand seismic effects of earthquakes.
1211.8.5 Definitions. For purposes of this section, certain terms shall be defined as
follows:
1211.8.5.1 DOWNSTREAM OF THE GAS UTILITY METER. Shall refer to all customer
owned gas piping.
1211.8.5.2 SEISMIC GAS SHUTOFF VALVE. A system consisting of a seismic sensing
means and actuating means designed to automatically actuate a companion gas shutoff
means installed in a gas piping system in order to shut off the gas downstream of the
Ordinance No. 1680
Page 80 of 87
location of the gas shutoff means in the event of a severe seismic disturbance. The
system may consist of separable components or may incorporate all functions in a single
body. The terms "seismically activated gas shutoff valves" and "earthquake sensitive gas
shutoff valves," are synonymous.
1211.8.5.3 UPSTREAM OF THE GAS UTILITY METER. Shall refer to all gas piping
installed by the utility up to and including the meter and the utility's bypass toe at the
connection to the customer owned piping.
SECTION 7. Sections 13-6-1 of Chapter 6 of Title 13 of the ESMC is repealed and
replaced by the following to read as follows:
CHAPTER
ENERGY CODE
13-6-1 ADOPTION OF CALIFORNIA ENERGY CODE, 2025 EDITION.
Pursuant to California Government Code § 50022.1 to 50022.8, the California Energy
Code, 2025 Edition, published at Title 24, Part 6, of the California Code of Regulations,
("CEC") is adopted by reference, subject to the amendments, additions and deletions set
forth below. One true copy of the CEC, is on file in the office of the Building Official and
is available for public inspection as required by law."
SECTION 8, Sections 13-7-1 and 13-7-2 of Chapter 7 of Title 13 of the ESMC are
repealed and replaced by the following read as follows:
CHAPTER 7
PROPERTY MAINTENANCE CODE
13-7-1 ADOPTION OF INTERNATIONAL PROPERTY MAINTENANCE CODE, 2024
EDITION.
Pursuant to California Government Code § 50022.1 to 50022.8, the International Property
Maintenance Code (IPMC), 2024 Edition, promulgated and published by the International
Code Council, adopted by reference, subject to the amendments, additions and deletions
set forth below. One true copy of the IPMC, is on file in the office of the Building Official
and is available for public inspection as required by law.
13-7-2 AMENDMENTS TO THE PROPERTY MAINTENANCE CODE:
Section 106.1 of the IPMC is hereby amended to read as follows:
IPMC Section 106.1 General, is deleted in its entirety. The 2025 California Building Code,
as incorporated into the El Segundo Municipal Code, will govern the administration of the
Ordinance No. 1680
Page 81 of 87
IPMC.
Sections [A]106.2 through 106.4 of the IPMC are hereby deleted.
SECTION 9., Sections 13-8-1 and 13-8-2 of Chapter 8 of Title 13 of the ESMC are
repealed and replaced by the following to read as follows. -
CHAPTER 8
SWIMMING POOL AND SPA CODE
13-8-1 ADOPTION OF INTERNATIONAL SWIMMING POOL AND SPA CODE, 2024
EDITION.
Pursuant to California Government Code sections 50022.1 to 50022.8, the International
Swimming Pool and Spa Code ("ISPSC"), 2024 Edition, promulgated and published by
the International Code Council, adopted by reference, subject to the amendments,
additions and deletions set forth below. One true copy of the ISPSC is on file in the office
of the Building Official and is available for public inspection as required by law.
Section 13-8-2 AMENDMENTS TO THE SWIMMNG POOL AND SPA CODE:
Section [A]112.1 Membership of board, is deleted in its entirety. The 2022 California
Building Code, as incorporated into the El Segundo Municipal Code, will govern the
administration of the ISPSC.
Section [A]102.9 of the 2024 ISPSC is amended to read as follows:
[A]102.9 The provisions of this code shall not be deemed to nullify any provisions of the
California Swimming Pool Safety Act (El Segundo Residential Code Appendix CI), or any
other local, state or federal law.
Section 301.1.2 is added to the 2024 ISPSC to read as follows:
301.1.2 Conflicts. In the event of a conflict between the provisions of the Swimming Pool
Safety Act, the International Swimming Pool and Spa Code, 2024 Edition, the 2025
California Building Code, or the 2025 California Residential Code, the Building Official
shall implement the most restrictive measures cited.
Section 305 "Barrier Requirements", in the 2025 ISPSC is deleted in its entirety."
SECTION 10. Sections 13-10-1 and 13-10-2 of Chapter 10 of Title 13 of the ESMC are
repealed and replaced by the following to read as follows:
Ordinance No. 1680
Page 82 of 87
CHAPTER 10
EXISTING BUILDING CODE
13-10-1: ADOPTION OF CALIFORNIA EXISTING BUILDING CODE, 2025 EDITION:
Pursuant to California Government Code sections 50022.1 to 50022.8, the California
Existing Building Code ("CEBC"), 2025 Edition, published at title 24, part 10, of the
California Code of Regulations, is adopted by reference, subject to the amendments,
additions and deletions set forth below. One true copy of the CEBC is on file in the office
of the Building Official and is available for public inspection as required by law.
13-10-2: AMENDMENTS TO THE EXISTING BUILDING CODE:
Section 1.8.8. of the CEBC is hereby amended as follows:
CEBC 1.8.8 APPEALS BOARD, is deleted in its entirety. The 2025 California Building
Code, as incorporated into the El Segundo Municipal Code, will govern the administration
of the CEBC.
SECTION 11. Sections 13-11-1 and 13-11-2 of Chapter 11 of Title 13 of the ESMC are
repealed and replaced by the following to read as follows:
CHAPTER 11
GREEN BUILDING STANDARDS CODE
13-11-1: ADOPTION OF CALIFORNIA GREEN BUILDING STANDARDS CODE, 2025
EDITION:
Pursuant to California Government Code sections 50022.1 to 50022.8, the California
Green Building Standards Code, 2025 Edition, published as title 24, part 11, of the
California Code of Regulations ("CGBSC") is adopted by reference, subject to the
amendments, additions and deletions set forth below. One true copy of the CGBSC is on
file in the office of the Building Official and is available for public inspection as required
by law.
13-11-2: AMENDMENTS TO THE GREEN BUILDING STANDARDS CODE:
Section 101.13 is added to the 2025 Edition of the California Green Building Standards
Code to read as follows:
101.13 Board of Appeals. The 2025 California Building Code, as incorporated into the El
Segundo Municipal Code, will govern the administration of the CGBSC.
SECTION 12. Section 13-19-1 of Chapter 19 of Title 13 of the ESMC are repealed and
replaced by the following to read as follows:
Ordinance No. 1680
Page 83 of 87
CHAPTER 19
SOLAR REQUIRMENTS
13-19-1: RESERVED.
SECTION 13. Sections 13-23-1 of Chapter 23 of Title 13 of the ESMC are repealed and
replaced by the following to read as follows:
13-23-1: ADOPTION OF CALIFORNIA HISTORICAL BUILDING CODE, 2025
EDITION.
CHAPTER 23
HISTORICAL BUILDING CODE
13-23-1: ADOPTION OF CALIFORNIA HISTORICAL BUILDING CODE, 2025
EDITION.
Pursuant to California Government Code § 50022.1 to 50022.8, the California Historical
Building Code ("CHBC"), 2025 Edition, published at Title 24, Part 8, of the California Code
of Regulations is adopted by reference. One true copy of the CHBC, is on file in the office
of the Building Official and is available for public inspection as required by law."
SECTION 1, Section 13-24-1 of Chapter 24 of Title 13 of the ESMC are added to read
as follows:
CHAPTER 24
WILDLAND-URBAN INTERFACE CODE
13-24-1: ADOPTION OF CALIFORNIA WILDLAND-URBAN INTERFACE CODE, 2025
EDITION.
Pursuant to California Government Code § 50022.1 to 50022.8, the California Wildland-
Urban Interface Code ("CWUI"), 2025 Edition, published at Title 24, Part 7, of the California
Code of Regulations is adopted by reference. One true copy of the CWUI, is on file in the
office of the Building Official and is available for public inspection as required by law."
SECTION 15. Effect of Ordinance on Past Actions and Obligations. The adoption of this
Ordinance will not affect any civil action initiated or criminal prosecution for ESMC
violations committed prior to this Ordinance's effective date; will not waive any fee or
penalty due and unpaid prior to this Ordinance's effective date; and will not affect the
validity of any bond or cash deposit posted, filed, or deposited pursuant to the ESMC,
prior to this Ordinance's effective date.
Ordinance No. 1680
Page 84 of 87
CTIQN 1 . Consistency, Repeal of Prior Codes. Prior City ordinances in conflict with
this Ordinance, in whole or in part, are superseded and expressly repealed.
SECTION 17. Environmental Assessment. The City Council determines that this
ordinance is exempt from review under the California Environmental Quality Act
(California Public Resources Code §§ 21000, et seq., "CEQA") and the regulations
promulgated thereunder (14 California Code of Regulations §§ 15000, et seq., the "CEQA
Guidelines") because it consists only of minor revisions and clarifications to an existing
code of construction -related regulations and specification of procedures related thereto
and will not have the effect of deleting or substantially changing any regulatory standards
or findings required therefor, and therefore does not have the potential to cause significant
effects on the environment. In addition, this ordinance is an action being taken for
enhanced protection of the environment and is exempt from further review under CEQA
Guidelines § 15308. Also, there is no possibility that the ordinance may have a significant
effect on the environment (14 Cal. Code Regs. § 15061(b)(3)), and it will not result in a
direct or reasonably foreseeable indirect physical change in the environment (14 Cal.
Code Regs. § 15060(c)(2)).
11 Construction. This Ordinance must be broadly construed to achieve the
purposes stated in this Ordinance. It is the City Council's intent that the provisions of this
Ordinance be interpreted or implemented by the City and others in a manner that
facilitates the purposes set forth in this Ordinance.
SECTION 19, Savings Clause. Repeal of any provision of the ESMC or any other city
ordinance herein will not affect any penalty, forfeiture, or liability incurred before, or
preclude prosecution and imposition of penalties for any violation occurring before, this
Ordinance's effective date. Any such repealed part will remain in full force and effect for
sustaining action or prosecuting violations occurring before the effective date of this
Ordinance.
SECTION '0. Severability. If any part of this Ordinance or its application is deemed invalid
by a court of competent jurisdiction, the city council intends that such invalidity will not
affect the effectiveness of the remaining provisions or applications and, to this end, the
provisions of this Ordinance are severable.
ECTIQN 1. Publication. The City Clerk is directed to certify the passage and adoption
of this Ordinance; cause it to be entered into the City of El Segundo's book of original
ordinances; make a note of the passage and adoption in the records of this meeting; and,
within fifteen 15 days after the passage and adoption of this Ordinance, cause it to be
published or posted in accordance with California law.
Ordinance No. 1680
Page 85 of 87
SECTION 22. Effective Date. This Ordinance will become effective on the 31St day
following its passage and adoption.
SECTION 23. Filing with Building Standards Commission. The City Clerk is directed to
transmit a certified copy of this Ordinance with the California Building Standards
Commission.
PASSED AND ADOPTED this 3rd day of December, 2025.
Q_' A ----
Chris Pimentel, Mayor
APPROVED AS TO FORM:
N
Mark D. Hensfey, City Attorney
Ordinance No. 1680
Page 86 of 87
CERTIFICATION
STATE OF CALIFORNIA )
COUNTY OF LOS ANGELES ) SS
CITY OF EL SEGUNDO )
I, Susan Truax, City Clerk of the City of El Segundo, California, do hereby certify that. the
whole number of members of the City Council of said City is five; that the foregoing
Ordinance No. 1680 was duly introduced by said City Council at a regular meeting held
on the 18t" day of November, 2025, and was duly passed, and adopted by said City
Council, approved and signed by the Mayor, and attested to by the City Clerk, all at a
regular meeting of said Council held on the 3rd day of December, 2025, and the same
was so passed and adopted by the following vote:
AYES: Mayor Pimentel, Mayor Pro Tern Baldino, Council Member Giroux, and
Council Member Keldorf
NOES: None
ABSENT: Council Member Boyles
ABSTAIN: None
WITNESS MY HAND THE OFFICIAL SEAL OF SAID CITY this 3rd day pf'De ember, 2025.
, Sus n Truax, City Clerk
of th City of El Segundo,
California
Ordinance No. 1680
Page 87 of 87