County permits

Sierra County

Sierra County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.

§ 01 Unincorporated

Unincorporated Sierra County.

If your property isn't inside an incorporated city, the county permit office handles your application directly.

Permit authority: Department of Planning and Building, Building Inspection Division
Website: Permit authority website ↗
Phone: (530) 289-3251
Email: building@sierracounty.ca.gov
Address: 101 Courthouse Square, P.O. Box 530, Downieville, CA 95936

Full unincorporated Sierra County permit guide →

§ 02 Jurisdictions

Cities in Sierra County

Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.

§ 03 County navigation

Information last verified for Sierra County, California. Permit rules and fees change frequently — verify current requirements with the issuing department before applying. Jaspector is an educational reference, not legal advice.