§ MO Missouri
County permits
Platte County
Platte County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.
§ 01 Unincorporated
Unincorporated Platte County.
If your property isn't inside an incorporated city, the county permit office handles your application directly.
- Permit authority
- Platte County Planning and Zoning
- Website
- Platte County Website ↗
- Online portal
- Platte County Website ↗
- Phone
- (816) 858-3338
- Address
- Platte County Administration Building, 415 Third St., Room 016, Platte City, MO 64079
§ 02 Jurisdictions
Cities in Platte County
Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.
§ 03 County navigation
Information last verified for Platte County, Missouri. Permit rules and fees change frequently — verify current requirements with the issuing department before applying. Jaspector is an educational reference, not legal advice.