§ WA Washington
County permits
Mason County
Mason County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.
§ 01 Unincorporated
Unincorporated Mason County.
If your property isn't inside an incorporated city, the county permit office handles your application directly.
- Permit authority
- Mason County Community Development Department, Building Division
- Website
- SmartGov Community Portal ↗
- Online portal
- SmartGov Community Portal ↗
- Phone
- (360) 427-9670, Extension 352
- Address
- 615 W Alder Street, Building 8, Shelton, WA 98584
§ 02 Jurisdictions
Cities in Mason County
Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.
§ 03 County navigation
Information last verified for Mason County, Washington. Permit rules and fees change frequently — verify current requirements with the issuing department before applying. Jaspector is an educational reference, not legal advice.