California Building Codes
Current base code, county-level adoption data, special-zone overlays, and source links for restoration contractors.
Current State Code
Verified state-level adoption record from SkyCanvass jurisdiction data.
California Title 24 Building Standards Code (2022 triennial cycle). Hybrid adoption: statewide base code with local reach codes permitted (stricter only). 12 parts including CRC (Part 2.5), Energy (Part 6), Fire (Part 9 + Ch. 7A WUI), CALGreen (Part 11). CEC administers energy code with 16 climate zones. CSLB licenses contractors. WUI Chapter 7A fire hardening in FHSZ. SDC D/E statewide (seismic). 2025 Title 24 effective Jan 1, 2026.; Updated 2026-03: CRC 2025 (based on IRC 2024) effective Feb 23, 2026
County Guides
County pages include local code editions, amendment flags, and jurisdiction-specific links.
Alameda County
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Alpine County
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Amador County
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Butte County
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Calaveras County
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Colusa County
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Contra Costa County
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Del Norte County
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El Dorado County
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Fresno County
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Glenn County
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Humboldt County
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Imperial County
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Inyo County
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Kern County
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Kings County
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Lake County
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Lassen County
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Los Angeles County
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Madera County
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Marin County
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Mariposa County
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Mendocino County
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Merced County
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Modoc County
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Mono County
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Monterey County
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Napa County
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Nevada County
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Orange County
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Placer County
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Plumas County
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Riverside County
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Sacramento County
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San Benito County
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San Bernardino County
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