Arcadia enforces 2025 CBC, T24 Pt 2 based on 2024 IBC with 2 local amendments on top (Ord. 2408 (building, AMC Art. VIII) + Ord. 2409 (fire: CFC + CA-WUIC, AMC Art. III)). The amendments are the part that gets sets corrected. The state edition is only the floor. Arcadia sits in Los Angeles County.
Edition changeover: Projects with a complete application on or before 2025-12-31 may still be reviewed under the 2022 Title 24.
| Discipline | Adopted code | Local amendment |
|---|---|---|
| Building | 2025 CBC, T24 Pt 2 based on 2024 IBC | Arcadia local amendments: Ord. 2408 (building, AMC Art. VIII) + Ord. 2409 (fire: CFC + CA-WUIC, AMC Art. III)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 |
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.
COST RECOVERY. Where an emergency situation is caused or exacerbated by a willful act, a negligent act, or a violation of the Fire Code, Building Code, or any other applicable law, ordinance or regulation, the cost of mitigating and securing any emergency that is within the responsibility of the Fire Chief is a charge against the person who caused the emergency or who caused the circumstances leading to the creation of the emergency. […]
ALARMS. An approved audible and visual sprinkler waterflow alarm device shall be connected to each automatic sprinkler system. Such sprinkler water-flow alarm devices shall be activated by water flow equivalent to the flow of a single sprinkler of the smallest orifice size installed in the system. Where a waterflow switch is required by Section 903.4.1 to be electrically supervised, such sprinkler waterflow alarm devices shall be powered by a fire alarm control unit or, where provided, a fire alarm system. Alarm devices shall be provided on the exterior of the building in an approved location. […]
EXISTING BUILDINGS. An approved automatic fire sprinkler system shall be installed in existing buildings, including any additions thereto, in the occupancies and buildings as set forth in this section. 1. In all commercial and industrial buildings greater than 5000 square feet in area when enlarged by an addition to the existing structure or as required by the Fire Chief. 2. In all commercial and industrial buildings equal to or less than 5000 square feet in area, when enlarged by an addition to the existing structure, exceeds 5000 square feet or as required by the Fire Chief. 3. In all Group R-1 or R-2 Occupancies when an addition results in additional guestrooms or dwelling units. 4. […]
Section P101.2 of the California Fire Code is amended to read as follows: P101.2 Permits. An operational permit shall be required for haunted houses, ghost walks, or similar amusement uses in accordance with Appendix P101.2. EXCEPTION: Haunted houses, ghost walks, or similar amusement uses in Group R-3 occupancies." "3124.9 ADDITION. Section 5608.2 is added to Chapter 56 of the California Fire Code to read as follows 10 due to local climatic conditions: 5608.2. FIREWORKS PROHIBITED. No person shall sell, display for sale. […]
Section 6112 is hereby added to Chapter 61 of the California Fire Code to read as follows: The use of liquefied petroleum gas for emergency power generation for Group R-3 occupancies located in the Very High Fire Hazard Severity Zone area shall comply with the following: 1. All individual containers shall be a maximum size of 500-gallon (1893 L) water capacity. Multiple container systems shall not exceed 500-gallons (1893 L) in aggregate quantity. 2. A minimum 10-foot setback shall be maintained between the tank and all buildings in perpetuity. All future developments on the property shall be subject to this requirement. 3. […]
Section 101.5 of the 2025 California Wildland-Urban Interface Code is amended to read as follows due to local climatic and topographical conditions: 101.5. Additions, Remodels, Repairs or Alterations. Additions, remodels, repairs or alterations may be made to any building or structure without requiring the existing 14 building or structure to comply with all the requirements of this code, provided the addition, remodel, repair or alteration conforms to that required for a new building or structure. EXCEPTIONS: 1. Provisions of this code that specifically apply to existing conditions are retroactive. 2. […]
Code is hereby amended by amending Sections 3125 and 3125.1 to read in their entirety as follows: "DIVISION 5. - APPEALS AND PERMITS 3125. AMENDMENT [ADMINISTRATIVE]. Section 1 1 2 of the California Fire Code is amended to read as follows: Appeals. Whenever the Chief disapproves an application or refuses to grant a permit, the applicant may appeal from the decision of the Chief to the City of Arcadia Building/Fire Code Appeals Board within thirty (30) days from the date of the decision being appealed. 3125.1. AMENDMENT [ADMINISTRATIVE]. Section 112 of the California Fire Code is amended by adding the following paragraph: Appeals Procedure. […]
Code are hereby amended in their entirety to read as follows: "PART 3. -CALIFORNIA WILDLAND-URBAN INTERFACE CODE 3130. CALIFORNIA WILDLAND-URBAN INTERFACE CODE ADOPTION There is adopted by reference for the City of Arcadia the 2025 Edition of the California Wildland-Urban Interface Code, including Chapter A based on the 2024 Edition of the International Wildland-Urban Interface Code published by the International Code Council, and the foregoing shall constitute the Wildland-Urban Interface Code of the City of Arcadia. 3130.1. WILDLAND-URBAN INTERFACE FIRE AREA BOUNDARIES. […]
Municipal Code is hereby amended to read as follows: "3121. CALIFORNIA FIRE CODE ADOPTION. Subject to the exception of the deletions or additions hereinafter set forth, and further subject to the amendments hereinafter specified, there is adopted by reference for the City of Arcadia the 2025 Edition of the California Fire Code, including Appendix Chapter 4 and Appendices B, C, D, K, and P based on the 2024 Edition of the International Fire Code published by the International Code Council, and the foregoing shall constitute the Fire Code of the City of Arcadia. One (1) copy of said code is on file in the office of the City Clerk for use and examination by the public."
Code is hereby amended by amending Sections 3124, 3124.1, 3124.2, 3124.3, 3124.4, 3124.5, 3124.6, 3124.7, and 3124.8, and adding Sections 3124.9, 3124.10, 3124.11, 3124.12 and 3124.13 to read in their entirety as follows: 4 "3124. AMENDMENTS AND ADDITIONS. The California Fire Code is hereby amended to read as follows: 3124.1. AMENDMENT. Section 105.6.30 of the California Fire Code is amended to read as follows due to local climatic, geographical, and topographical conditions:
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.
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.
State ADU law preempts local zoning that would preclude a conforming ADU/JADU.
Applies when: project includes an ADU or JADU
State Density Bonus Law concessions/waivers override local development standards.
Applies when: project requests a density bonus
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
Arcadia enforces 2025 CBC, T24 Pt 2 based on 2024 IBC, the edition adopted statewide in California, amended locally in 2 disciplines (Ord. 2408 (building, AMC Art. VIII) + Ord. 2409 (fire: CFC + CA-WUIC, AMC Art. III)).
Yes: building, zoning. For building, the rule is: local text supersedes the state code.
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.
Your first check is free, no card required.
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.