Antioch, CA Building Safety: Roofing Permits (2026)

The City of Antioch Community Development Department, Building Division, issues roofing permits under Antioch Municipal Code Title 8 (Buildings and Construction), which adopts the current California Residential Code (CRC) and California Building Code (CBC) by reference. A permit is required for any roof covering replacement, whether a tear-off or overlay. California Building Code Section 1505 requires Class A roof coverings in most urban zones, and because portions of Antioch (particularly the southern hills near Black Diamond Mines) are mapped in or near Local Responsibility Area (LRA) moderate fire hazard zones, Class A assemblies are the de facto standard. California only permits a single overlay; a second layer over existing shingles is not allowed, and on structures with two existing layers a full tear-off is required. Underlayment must meet CRC R905 standards, and when more than 50% of the roof deck is replaced, the reroof triggers California Title 24 Part 6 cool-roof requirements for low-slope roofs and radiant barrier/ventilation standards. Permit applications require a signed contract or owner-builder declaration, contractor CSLB C-39 license verification, workers compensation certificate, and product data sheets showing ICC-ES approval. Inspections typically include an in-progress nail/underlayment inspection and a final. Reroof permit fees in Antioch are valuation-based per the adopted fee schedule. Work performed without a permit is subject to investigation fees equal to the permit fee (doubled) and potential code enforcement action under AMC Title 8.