§ IL Illinois
County permits
Grundy County
Grundy County issues permits only for unincorporated areas. Inside an incorporated city? Pick the city below — its building department handles your permit.
§ 01 Unincorporated
Unincorporated Grundy County.
If your property isn't inside an incorporated city, the county permit office handles your application directly.
- Permit authority
- Grundy County Land Use Department (Building Office)
- Website
- Grundy County Building Office ↗
- Online portal
- Grundy County Building Office ↗
- Phone
- 815-941-3228
- Address
- 1320 Union Street, Morris, IL 60450
§ 02 Jurisdictions
Cities in Grundy County
Click any city for its full permit guide — authority, fees, application steps, inspections, and exempt work.
§ 03 County navigation
Information last verified for Grundy County, Illinois. Permit rules and fees change frequently — verify current requirements with the issuing department before applying. Jaspector is an educational reference, not legal advice.