County Building Permits

Piatt County Building Permit Guide (Unincorporated Area)

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

Illinois Updated March 2026

Permit Authority

All unincorporated areas of Piatt County, including but not limited to White Heath and the unincorporated fringes of all municipalities. The county zoning officer enforces the Piatt County Zoning Ordinance (adopted July 13, 2004; most recently amended effective January 10, 2024).

Department
Piatt County Zoning Office
Address
Piatt County Courthouse, Room 105, 101 W. Washington, Monticello, IL 61856
Phone
(217) 762-3111
Website
https://piatt.gov/zoning/

Online Permit Portal

Open Piatt County Zoning

Platform: Paper application • Account required: No • Submission: In-person only

Application Process

  1. Verify parcel location using Piatt County GIS (https://maps.piattcounty.org/public/) to confirm it is in unincorporated Piatt County.
  2. Download or obtain the Application for Building Permit from the Piatt County Zoning Office.
  3. Complete the entire application form. Incomplete applications delay issuance.
  4. Prepare a site plan (sketch) showing dimensions and location of proposed construction, location of road, and setback distance from center of road to face of proposed building.
  5. If the project involves a new water source, change of water use, or a private sewage system (well or septic), contact the DeWitt-Piatt Bi-County Health Department for approval before submitting to zoning. Submit the Health Department Certification of Approval form with the building permit application.
  6. Submit completed application, site plan, building plans, and construction specifications to the Piatt County Zoning Office (Room 105, Piatt County Courthouse).
  7. Pay applicable permit fees.
  8. Permit issued. Construction must begin within 6 months of issue date.
  9. Permit is valid for two years from issuance date.
  10. Schedule required inspections as construction progresses.

Typical processing time: Not publicly specified. Courthouse hours are Monday through Friday 8:30 AM-4:30 PM.

Source: Piatt County Zoning Office

General Requirements

A building permit is required for all construction in unincorporated Piatt County subject to the Piatt County Zoning Ordinance. This includes new construction, additions, and accessory buildings. Agricultural buildings on actively farmed land may be exempt under Illinois state law, but confirm with the Zoning Officer.

Required Documents

  • Completed Application for Building Permit
  • Site plan (sketch) showing dimensions, road location, and setback distances
  • Building plans and construction specifications
  • Health Department Certification of Approval (if new well or septic involved)
Permit validity
Construction must begin within 6 months of issuance date. Permit is valid for two years from issuance date.
Building code
Piatt County has historically not adopted a comprehensive construction building code beyond manufactured homes provisions. As of January 1, 2025, Illinois PA 103-0510 mandates IBC 2021, IRC 2021, IEBC 2021, NEC 2023, Illinois Energy Conservation Code, Illinois Accessibility Code, and Illinois Plumbing Code as statewide minimum standards. Confirm current enforcement with Zoning Officer at (217) 762-3111.
Owner-builder
Not specifically addressed in publicly available materials. Contact Zoning Officer.
Contractor requirements
No Illinois state general contractor license. IDFPR-licensed electricians and plumbers required for those trades.

Fees

Minimum permit fee
$50
Plan check fee
Not separately identified.
Permit fee formula
New construction: $12.00 per 100 square feet of new construction. Accessory buildings up to 2,000 sq ft: flat fee of $50. Accessory buildings larger than 2,000 sq ft: maximum fee of $225.00.
Reinspection fee
Not publicly specified.
Payment note
Made payable to Piatt County. Contact office to confirm accepted payment methods.

Fees change. Verify current amounts at the official fee schedule.

Work That Does NOT Require a Permit

  • Routine maintenance and repair of existing structures (non-structural)
  • Agricultural buildings and structures on agricultural land may be partially exempt under Illinois state law, though setback requirements still apply

Important: Illinois state law (65 ILCS 5/11-13-1) limits county authority to impose permits on buildings used for bona fide agricultural purposes, though size, location, and design restrictions may still apply. Specific exemption list not published online. Contact Zoning Officer.

Inspections

How to Schedule

  • (217) 762-3111 (phone)
Inspection hours
Monday through Friday, 8:30 AM-4:30 PM

Typical inspection sequence: Not publicly documented in detail. Contact Zoning Officer (Keri Nusbaum) for required inspection phases. For projects involving septic systems, a DeWitt-Piatt Bi-County Health Department sanitarian must inspect before backfilling; 48-hour notice required.

Additional Resources

Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Piatt County Zoning Office before applying.

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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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