City Council

11. FIRST READING OF ORDINANCE NO. 1569 AMENDING CHAPTER 1, ARTICLE 8 OF THE TUSTIN CITY CODE TO ADOPT THE 2025 CALIFORNIA BUILDING STANDARDS CODE, RELATED MODEL CODES WITH CERTAIN APPENDICES, AND SUPPLEMENTAL REGULATIONS, AND ADOPTING AMENDMENTS THERETO FOLLOWING A PUBLIC HEARING NOVEMBER 18, 2025 Every three years, the California Building Standards Commission updates and adopts new construction regulations based on internationally published model codes. These regulations are collectively known as the California Code of Regulations Title 24, or more commonly, the California Building Standards Code. State law requires the 2025 California Building Standards Code to be enforced by all California cities effective January 1, 2026. Sections 17958.7 and 18941.5 of the California Health and Safety Code permit local governments to adopt amendments to the California Building Standards Code when they are administrative or procedural in nature, or when local climatic, geological, or topographical conditions warrant more restrictive requirements. These amendments, however, may not be less restrictive than the standards contained in Title 24. To comply with State law, Ordinance No. 1569 is proposed to adopt and amend the 2025 California Building Standards Code, including certain appendices and supplemental regulations. City staff has worked in partnership with the Orange County Fire Authority on relevant supplemental regulations, and Resolution No. 25-53 provides the express findings demonstrating that these amendments are reasonably necessary due to local climatic, geological, and topographical conditions within the City of Tustin. Recommendation: That the City Council: 1. Continue to November 18, 2025 the consideration of Resolution 25-53, which sets forth findings related to local climatic, geological, and topographical conditions within the City of Tustin that make certain amendments to the 2025 California Building Standards Code reasonably necessary; and, 2. Introduce and conduct the first reading of Ordinance No. 1569 and set the second reading and adoption for the Council's public hearing on November 18, 2025. This procedure is in accordance with California Government Code Title 5, Division 1, Part 1, as referenced in Building Standards Bulletin 2502. ORDINANCE NO. 1569 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF TUSTIN, CALIFORNIA ADOPTING CODE AMENDMENT 2025-0001 AMENDING CHAPTER 1 OF ARTICLE 8 OF THE TUSTIN CITY CODE AND ADOPTING THE 2025 CALIFORNIA BUILDING STANDARDS CODE, RELATED MODEL CODES WITH CERTAIN APPENDICES, AND CERTAIN SUPPLEMENTAL REGULATIONS, INCLUDING: THE CALIFORNIA BUILDING CODE, 2025 EDITION, ADDING APPENDIX S; THE CALIFORNIA RESIDENTIAL CODE, 2025 EDITION; THE CALIFORNIA FIRE CODE, 2025 EDITION, INCLUDING APPENDICES B, BB, C, CC, AND H; THE CALIFORNIA WILDLAND-URBAN INTERFACE CODE, 2025 EDITION; THE CALIFORNIA GREEN BUILDING STANDARDS CODE, 2025 EDITION; THE CALIFORNIA PLUMBING CODE, 2025 EDITION; THE CALIFORNIA MECHANICAL CODE, 2025 EDITION; THE CALIFORNIA ELECTRICAL CODE, 2025 EDITION; THE CALIFORNIA ENERGY CODE, 2025 EDITION; THE CALIFORNIA HISTORICAL BUILDING CODE, 2025 EDITION; THE CALIFORNIA EXISTING BUILDING CODE, 2025 EDITION; THE CALIFORNIA REFERENCED STANDARDS CODE, 2025 EDITION; THE UNIFORM HOUSING CODE, 1997 EDITION; THE UNIFORM CODE FOR THE ABATEMENT OF DANGEROUS BUILDINGS, 1997 EDITION; AND THE INTERNATIONAL PROPERTY MAINTENANCE CODE, 2024 EDITION; WITH CERTAIN ADDITIONS, AMENDMENTS AND DELETIONS. Fiscal Impact: There is no fiscal impact associated with this item.