§ OR Oregon
County permits
Columbia County
Columbia County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.
§ 01 Unincorporated
Unincorporated Columbia County.
If your property isn't inside an incorporated city, the county permit office handles your application directly.
- Permit authority
- Land Development Services Department, Building Division
- Website
- Oregon ePermitting System ↗
- Online portal
- Oregon ePermitting System ↗
- Phone
- 503-397-1501
- Address
- 445 Port Avenue, Port Business Center, St. Helens, OR 97051
§ 02 Jurisdictions
Cities in Columbia County
Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.
§ 03 County navigation
Information last verified for Columbia County, Oregon. Permit rules and fees change frequently — verify current requirements with the issuing department before applying. Jaspector is an educational reference, not legal advice.