§ MT Montana
County permits
Custer County
Custer County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.
§ 01 Unincorporated
Unincorporated Custer County.
If your property isn't inside an incorporated city, the county permit office handles your application directly.
- Permit authority
- Custer County Planning and Zoning Department
- Website
- Paper applications only ↗
- Phone
- (406) 366-1424
- Address
- Custer County Courthouse, 431 South 10th Avenue, Miles City, MT 59301
§ 02 Jurisdictions
Cities in Custer County
Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.
§ 03 County navigation
Information last verified for Custer 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.