County Building Permits
Adams County, IL - 2026 Building Permit Guide
How to apply for a building permit in unincorporated Adams County, Illinois. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
Unincorporated Adams County only.
- Department
- Address
- 507 Vermont St, Quincy, IL 62301
- Website
- https://www.adamscountyil.gov/
Application Process
- Floodplain development applications must be made before any work in a floodplain area.
General Requirements
All development within the 100-year floodplain requires a Floodplain Development Permit.
Work That Does NOT Require a Permit
Contact the to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
Additional Resources
- Floodplain permit requirements
- What you can do in floodplain areas
- County code
- License lookup guide: Illinois Contractor License Requirements
- Contract template: Illinois Homeowner-Contractor Agreement
- Illinois hub: Illinois Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the before applying.
Frequently Asked Questions
Adams County Building Permit FAQ
- Do I need a building permit in unincorporated Adams County, IL?
- All development within the 100-year floodplain requires a Floodplain Development Permit.
- How do I apply for a building permit in unincorporated Adams County, IL?
- 1. Floodplain development applications must be made before any work in a floodplain area.
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