Santa Clarita enforces 2025 CBC, T24 Pt 2 based on 2024 IBC with 2 local amendments on top (Ord. 25-5 (SCMC Titles 18-22, 24, 25.01); companion Ord. 25-06 = 2025 CFC (detail unverified)). The amendments are the part that gets sets corrected. The state edition is only the floor. Santa Clarita sits in Los Angeles County.
Current edition
2025 Title 24
Prior edition
2022 Title 24
Edition changeover: Projects with a complete application on or before 2025-12-31 may still be reviewed under the 2022 Title 24.
Adopted code and local amendments by discipline
Adopted code editions and local amendments by discipline
Discipline
Adopted code
Local amendment
Building
2025 CBC, T24 Pt 2 based on 2024 IBC
Santa Clarita local amendments, Ord. 25-5 (SCMC Titles 18-22, 24, 25.01); companion Ord. 25-06 = 2025 CFC (detail unverified)Local text supersedes the state code
Residential
2025 CRC, T24 Pt 2.5 based on 2024 IRC
n/a
Existing buildings
2025 CEBC, T24 Pt 10 based on 2024 IEBC
n/a
Fire
2025 CFC, T24 Pt 9 based on 2024 IFC
n/a
Electrical
2025 CEC, T24 Pt 3 based on 2023 NEC
n/a
Mechanical
2025 CMC, T24 Pt 4 based on 2024 UMC
n/a
Plumbing
2025 CPC, T24 Pt 5 based on 2024 UPC
n/a
Energy
2025 Energy Code, T24 Pt 6
n/a
Green / sustainability
2025 CALGreen, T24 Pt 11
n/a
Accessibility
2025 CBC Ch 11A/11B, T24 Pt 2
n/a
Wildland-urban interface
2025 CA-WUIC, T24 Pt 7 based on 2024 IWUIC
n/a
Historical buildings
2025 CHBC, T24 Pt 8
n/a
Administrative
2025 CAC, T24 Pt 1
n/a
Zoning
No state-adopted code
Local zoning ordinance (city or county), subject to state preemptionLocal text supersedes the state code
What Santa Clarita actually amended
Quoted from the adopted ordinance. These are the provisions that differ from the state code, which is where most correction lists come from. Excerpts, not the whole ordinance. Follow the source link for the full text.
18.08.070
Tables 2306.2(3), 2306.2(4), and 2306.2(5) are added as follows:
34
Table 2306.2(3)
UNBLOCKED Wood Structural Panel DIAPHRAGMS with Framing of Douglas-Fir Larch or Southern Pine
Allowable (ASD) Unit Shear Capacities (pounds per foot)
Sheathing
Grade
Common
Nail Size
Minimum
Nail
Bearing
Length in
Framing
Member
(in.)
Minimum
Nominal
Panel
Thickness
(in.)
Minimum
Nominal Width of
Nailed Face at
Adjoining Panel
Edges and
Boundaries (in.)
SEISMIC
WIND
6 in. Nail Spacing at diaphragm
boundaries and supported panel
edges
6 in. […]
18.08.100
Table 2306.3(4) is added as follows:
38
TABLE 2306.3(4)
WOOD STRUCTURAL PANEL SHEAR WALLS with Framing of Douglas-Fir Larch or Southern Pine
Allowable (ASD) Shear Capacities (pounds per foot)
Sheathing Material
Minimum
Nominal
Panel
Thickness
(in.)
Minimum Nail
Bearing Length
in Framing
Member or
Blocking
(in.)
Nail Size
(common)
SEISMIC
WIND
Panel Edge Nail Spacing (in.)
Panel Edge Nail Spacing (in.)
6
4
3
2
6
4
3
2
Wood Structural Panels
– Structural I
3/8
7/16
15/32
1-3/8
8d
200
255
280
200
395*
430*
200
505*
550*
200*
670*
730*
322
357
392
505
552
602
645
707
770
855*
937*
1022*
15/32
1-1/2
10d
340
510*
665*
870*
475
715
930*
1217*
Wood Structural Panels
– Sheathing
(DOC PS 1 or PS… […]
18.12.030
Table R301.2 is amended as follows:
51
Table R301.2
Climatic and Geographic Design Criteria
For SI: 1 pound per square foot = 0.0479 kPa, 1 mile per hour = 0.447 m/s
a.
Weathering may require a higher strength concrete or grade of masonry than necessary to satisfy the structural requirements of this code. The weathering column
shall be filled in with the weathering index, “negligible,” “moderate” or “severe” for concrete as determined from Figure R301.2(1). The grade of masonry units
shall be determined from ASTM C34, C55, C62, C73, C90, C129, C145, C216 or C652.
b.
The frost line depth may require deeper footings than indicated in Figure R403.1(1). […]
19.03.060
Section 80.19(C) is amended in its entirety to read as follows:
80.19(C) Issuance of Permits. The authority having jurisdiction is authorized to issue a permit to
the applicant for the work described in the application and plans filed therewith, when it is
determined that all of the following items comply:
1. The proposed work conforms to the requirements of this code and other pertinent laws
and ordinances; and any documentation necessary to demonstrate compliance has been
submitted and approved by the Building Official or other individuals designated by the
Building Official.
2. The required clearances from all other agencies have been obtained.
3. […]
19.03.100
Sections 80.21(D), (E), (F), and (G) are added to read as follows:
(D) Submittal Documents. The authority having jurisdiction shall require the submission of
plans, specifications, drawings, descriptions and diagrams as appropriate to clearly show the
character, kind, and extent of electrical work covered by an application for a permit. Such
documents may be submitted in electronic format upon approval of the authority having
jurisdiction.
Exception: If in the opinion of the authority having jurisdiction the scope of work is determined
to be of a minor nature, the submittal of such documents may be waived by the authority having
jurisdiction.
(E) Information Required on Plans.
1. […]
105.2
Work Exempted from Permit. Exemptions from the permit requirements of this code 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 the City of Santa Clarita including such
requirements as may be established by any city department or division or the requirements of any
other governing agency. Unless otherwise exempted, separate plumbing, electrical, and mechanical
permits will be required for any such items exempted herein.
Permits shall not be required for the following:
Building:
1. […]
105.2.3
Repairs and Maintenance. Application or notice to the Building Official is not required for ordinary maintenance or repairs to structures. In no case shall the repair or maintenance work create
an unsafe condition or violate any provision of this code or any other applicable regulation. Such
repairs shall not include the cutting away of any wall, partition or portion thereof, the removal or
cutting of any structural beam, brace, or load-bearing support, or the removal or change of any
required means of egress, or rearrangement of parts of a structure affecting the egress requirements. […]
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. […]
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 one face with 3/8-inch (3.2 mm) minimum-thickness wood structural panel
sheathing nailed with 8d common nails in accordance with Table 2304.10.2 and blocked at wood
structural panel edges. […]
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 nails in accordance
with Figure 2308.10.5.2. […]
Mapped hazard and district overlays stack on top of the adopted code. These are the overlays recorded for Los Angeles County. They apply by parcel, not jurisdiction-wide, so confirm the parcel before assuming one is in play. Check CAL FIRE's fire hazard severity viewer and FEMA's flood map service.
Very High Fire Hazard Severity Zone
FEMA mapped flood hazard area
State law that overrides local zoning here
When one of these applies, the state statute governs over a conflicting local standard. This is the most common reason a local rule someone quotes you turns out not to be enforceable against a project.
Gov. Code 66310 et seq.
State ADU law preempts local zoning that would preclude a conforming ADU/JADU.
Applies when: project includes an ADU or JADU
Gov. Code 65915
State Density Bonus Law concessions/waivers override local development standards.
Applies when: project requests a density bonus
Gov. Code 65852.21 / 66411.7
SB 9 urban lot split / two-unit ministerial approval preempts conflicting local standards.
Applies when: project is an SB 9 lot split or two-unit development
Santa Clarita enforces 2025 CBC, T24 Pt 2 based on 2024 IBC, the edition adopted statewide in California, amended locally in 2 disciplines (Ord. 25-5 (SCMC Titles 18-22, 24, 25.01); companion Ord. 25-06 = 2025 CFC (detail unverified)).
Does Santa Clarita amend the California code?
Yes: building, zoning. For building, the rule is: local text supersedes the state code.
Where do I confirm the code edition for a Santa Clarita permit?
With the city building department that will review the permit. Adoption ordinances are amended on a local schedule, and a set submitted days apart can fall under different editions during a changeover.
Knowing the adopted edition is the easy half. Architechtura reads your drawings, resolves which of these provisions actually apply to the project, and returns the corrections a plan checker would write up, each one cited to the section it came from.
Compiled from published state and municipal adoption ordinances. Local governments amend their codes on their own schedule, and a pending ordinance can change what applies to your permit. Confirm the governing edition with the building department before you submit. This page is reference information, not a code determination.