§ OH Ohio
County permits
Williams County
Williams County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.
§ 01 Unincorporated
Unincorporated Williams County.
If your property isn't inside an incorporated city, the county permit office handles your application directly.
- Permit authority
- Williams County Auditor, Building Notices / New Construction
- Phone
- 419-636-5639
- Address
- One Courthouse Square, Bryan, OH 43506
§ 02 Jurisdictions
Cities in Williams County
Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.
§ 03 County navigation
Information last verified for Williams County, Ohio. Permit rules and fees change frequently — verify current requirements with the issuing department before applying. Jaspector is an educational reference, not legal advice.