§ CA California
County permits
Sonoma County
Sonoma County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.
§ 01 Unincorporated
Unincorporated Sonoma County.
If your property isn't inside an incorporated city, the county permit office handles your application directly.
- Permit authority
- Permit Sonoma
- Website
- Permits Online ↗
- Online portal
- Permits Online ↗
- Phone
- (707) 565-1900
- Address
- 2550 Ventura Avenue, Santa Rosa, CA 95403
§ 02 Jurisdictions
Cities in Sonoma County
Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.
§ 03 County navigation
Information last verified for Sonoma 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.