§ MT Montana
County permits
Prairie County
Prairie County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.
§ 01 Unincorporated
Unincorporated Prairie County.
If your property isn't inside an incorporated city, the county permit office handles your application directly.
- Permit authority
- Building Codes Program (State-level enforcement for unincorporated areas)
- Online portal
- Montana State Building Permit Portal ↗
- Phone
- (406) 635-5575
- BUILDINGCODES@MT.GOV
- Address
- 217 W Park St, Terry, MT 59349
§ 02 Jurisdictions
Cities in Prairie County
Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.
§ 03 County navigation
Information last verified for Prairie County, Montana. Permit rules and fees change frequently — verify current requirements with the issuing department before applying. Jaspector is an educational reference, not legal advice.