§ TX Texas
County permits
Trinity County
Trinity County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.
§ 01 Unincorporated
Unincorporated Trinity County.
If your property isn't inside an incorporated city, the county permit office handles your application directly.
- Permit authority
- Trinity County (County Judge's Office, Commissioners Court, Commissioners' Office, 911 Addressing and GIS Mapping)
- Online portal
- Trinity County Environment and Septic ↗
- Phone
- 936-642-1746 (County Judge's Office and OSSF); 936-642-2743 (Commissioners); 936-642-3904 (911 Addressing)
- 911map@co.trinity.tx.us
- Address
- Trinity County Courthouse, 162 West 1st St, Groveton, TX 75845
§ 02 Jurisdictions
Cities in Trinity County
Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.
§ 03 County navigation
Information last verified for Trinity County, Texas. Permit rules and fees change frequently — verify current requirements with the issuing department before applying. Jaspector is an educational reference, not legal advice.