County Building Permits
Grundy County, MO - 2026 Building Permit Guide
Building permit information for unincorporated Grundy County and all incorporated cities. Find your jurisdiction's permit authority, application process, fees, and requirements.
Important: Grundy County issues building permits only for properties in unincorporated areas of the county. If your property is inside an incorporated city, select your city below — that city's building department handles your permits, not the county.
Unincorporated Grundy County
- Permit authority
- Grundy County Commission Clerk (serves as the county's de facto zoning and building permit contact). ?cite?turn21search3?
- Phone
- (660) 359-6305. ?cite?turn21search3?
- Address
- 700 Main Street, Trenton, MO 64683. ?cite?turn21search3?
Jurisdictions in Grundy County
Select your jurisdiction for local permit authority, portal links, application steps, fees, and inspection requirements.
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the relevant city or county department before applying.
Related Missouri Resources
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