§ SD South Dakota
County permits
Buffalo County
Buffalo County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.
§ 01 Unincorporated
Unincorporated Buffalo County.
If your property isn't inside an incorporated city, the county permit office handles your application directly.
- Permit authority
- Buffalo County Auditor's Office
- Online portal
- Buffalo County Auditor's Office ↗
- Phone
- (605) 293-3217
- Address
- 112 Osman Ave., PO Box 146, Gann Valley, SD 57341
§ 02 Jurisdictions
Cities in Buffalo County
Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.
§ 03 County navigation
Information last verified for Buffalo County, South Dakota. Permit rules and fees change frequently — verify current requirements with the issuing department before applying. Jaspector is an educational reference, not legal advice.