County Building Permits

Sangamon County Building Permit Guide (Unincorporated Area)

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

Illinois Updated March 2026

Permit Authority

All unincorporated areas of Sangamon County and several municipalities via Intergovernmental Agreements (IGAs).

Department
Sangamon County Department of Building and Zoning
Address
200 S. Ninth St., Room 234, Springfield, IL 62701
Phone
(217) 753-6760
Website
https://sangamonil.gov/departments/s-z/zoning/building

Online Permit Portal

Open Sangamon County Zoning Permits

Platform: Custom Website (PDF-based) • Account required: No • Submission: In-person only

Application Process

  1. Determine if the project is within a municipal boundary or unincorporated area.
  2. Download and complete the applicable Building Permit Application (Residential, Commercial, or Ag-Exempt).
  3. Submit application along with a site plan/positional diagram and construction drawings to the Building Safety Section.
  4. Zoning check followed by Building Safety review.
  5. Permit issuance upon fee payment.

Typical processing time: 5-10 business days for standard residential; longer for commercial.

Source: Sangamon County Department of Building and Zoning

General Requirements

New construction, additions, structural alterations (roofing, siding, windows), accessory structures (sheds, pools, decks), and mechanical/plumbing/electrical systems.

Required Documents

  • Site plan or positional diagram
  • Construction drawings (scaled)
  • Contractor registration/license
  • Utility disconnection letters (for demolition)
Permit validity
Generally valid for 1 year; work must commence within 6 months.
Building code
2021 IBC, 2021 IRC, 2021 IEBC, 2023 NEC (State Mandated)
Owner-builder
Owners may perform work on their primary residence but must sign an affidavit and comply with state plumbing/electrical codes.
Contractor requirements
Plumbers must be state-licensed (IDFPR). Roofers must be state-licensed. General contractors must be registered with the county.

Fees

Minimum permit fee
$50
Plan check fee
Included in permit fee for most residential; separate for large commercial
Permit fee formula
$5 per $1,000 of value for residential; varies for commercial
Trade permit fee
Varies by trade
Reinspection fee
$50 for first reinspection; doubling for subsequent
Payment note
Checks payable to Sangamon County Zoning

Fees change. Verify current amounts at the official fee schedule (effective 2025).

Work That Does NOT Require a Permit

  • Minor cosmetic repairs (painting, carpeting)
  • Fences under 6 feet in height (check zoning setbacks)
  • Retaining walls under 4 feet
  • Moveable cases, counters, and partitions

Important: Exempt from building permit does not mean exempt from zoning and planning requirements. Confirm edge cases with the Building and Zoning Department before proceeding.

Inspections

How to Schedule

  • (217) 753-6760 (at least 24 hours in advance) (phone)
Scheduling deadline
Call at least 24 hours in advance.
Inspection hours
Monday - Friday, 8:30 AM - 3:30 PM

Typical inspection sequence: Typical sequence: Footing, Foundation, Under-slab, Rough-in (Plumbing/Electric/HVAC), Framing, Insulation, Final.

Additional Resources

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

Need help with your project?

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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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