County Building Permits

Fayette County, IL - 2026 Building Permit Guide

How to apply for a building permit in unincorporated Fayette County, Illinois. Permit authority, application steps, fees, and inspection requirements.

Illinois Updated March 2026

Permit Authority

Unincorporated Fayette County only, if permit authority exists through county administration, zoning, or special-use review.

Department
Address: Fayette County Courthouse, 211 S 7th St, Vandalia, IL 62471
Phone: 618-283-5000
Website: https://www.fayettecountyillinois.gov/

Application Process

Confirm whether the parcel is inside a municipality or in unincorporated county territory.
If the project changes driveway access or needs a new address, use the county 911 addressing process first.
Submit whatever county forms are required, if any, and attach site information and construction details.
Wait for county review and any board or staff approvals before starting work.

Source:

General Requirements

Building code: Illinois statewide minimum codes are effective January 1, 2025 (IBC 2021 for commercial, IRC 2021 for residential, NEC 2023, Illinois Energy Conservation Code, and Illinois Plumbing Code).
Contractor requirements: No county general contractor license found. State-licensed plumbing and electrical trades still apply.

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

Building code: Illinois statewide minimum codes are effective January 1, 2025 (IBC 2021 for commercial, IRC 2021 for residential, NEC 2023, Illinois Energy Conservation Code, and Illinois Plumbing 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

Fayette County Building Permit FAQ

How do I apply for a building permit in unincorporated Fayette County, IL?: 1. Confirm whether the parcel is inside a municipality or in unincorporated county territory. 2. If the project changes driveway access or needs a new address, use the county 911 addressing process first. 3. Submit whatever county forms are required, if any, and attach site information and construction details. 4. Wait for county review and any board or staff approvals before starting work.

Need help with your project?

Navigating permits in Unincorporated Fayette County can be complicated.

Jaspector connects you with local experts who can review your scope, verify your contractor, and help you understand what permits your project actually needs.

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Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

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