County Building Permits
Sonoma County Building Permit Guide
Building permit information for unincorporated Sonoma County and all incorporated cities. Find your jurisdiction's permit authority, application process, fees, and requirements.
Important: Sonoma County issues building permits only for properties in unincorporated areas of the county. If your property is inside an incorporated city, select your city below — that city's building department handles your permits, not the county.
Unincorporated Sonoma County
- Permit authority
- Permit Sonoma
- Website
- Permit Sonoma
- Online portal
- Permits Online
- Apply for permit
- Apply online
- Schedule inspection
- Inspection scheduling
- Governing body
- Sonoma County Board of Supervisors
Cities in Sonoma County
Select your city for local permit authority, portal links, application steps, fees, and inspection requirements.
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the relevant city or county department before applying.
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