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County building permits

Unincorporated Jackson County

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

Last verified
April 2026
On this page 6
§ 01

Permit authority

Jackson County Board / County Code Enforcement

Street address
1001 Walnut Street, Murphysboro, IL 62966
Coverage
Unincorporated area of Jackson County.
§ 02

When a permit is required

Permit triggers and exempt work for Jackson County

Floodplain development in the Special Flood Hazard Area requires a county development permit and covered development in the floodplain requires a permit.

Note: Research notes mention ordinance carve-outs and no-fee items but does not list a complete exemption list in public packet.

Required documents
  • Scaled site drawings showing property lines
  • Scaled site drawings showing existing and proposed grades
  • Scaled site drawings showing buildings and additions
  • Lowest floor elevation for proposed buildings
Building code
Public Act 103-0510 sets minimum statewide building code standards effective January 1, 2025; local ordinance verification is still needed.
Permit validity
A development permit expires if no work begins within six months.

Source: Jackson County Board / County Code Enforcement ↗

§ 03

Application process

Application → plan check → issuance → inspection → final

  1. 01
    In floodplain/SFHA development, the county building official reviews the application and compares site elevation to base flood elevation.
  2. 02
    County issues or denies the development permit after review.
  3. 03
    Covered floodplain development permits are reviewed within three days after filing as noted in the ordinance.

Source: Jackson County Board / County Code Enforcement ↗

§ 04

Fee schedule

Jackson County building permit fees

Fee type
Amount
01
Minimum permit fee
No fee for a use permit; no fee for demolition/clearing/debris removal in the SFHA.
02
Permit fee formula
$50 for improvements to an existing building, installing a manufactured home on a permanent site, and other development projects; $75 for construction/reconstruction under $100,000 and projects requiring three site inspections; $100 for construction over $100,000.

Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.

§ 05

Required inspections

Scheduling and sequence

Typical sequence: A county final inspection is required before a use permit is issued.

Deficiencies must be corrected before the use permit is issued.

§ 06

Frequently asked

Common questions about unincorporated Jackson County permits

01 Do I need a building permit in unincorporated Jackson County, IL?
Floodplain development in the Special Flood Hazard Area requires a county development permit and covered development in the floodplain requires a permit.
02 How much does a building permit cost in unincorporated Jackson County, IL?
Building permit fees in unincorporated Jackson County, IL are set by the local building department and vary by project type and valuation. The minimum permit fee is No fee for a use permit; no fee for demolition/clearing/debris removal in the SFHA.. Fees are calculated as: $50 for improvements to an existing building, installing a manufactured home on a permanent site, and other development projects; $75 for construction/reconstruction under $100,000 and projects requiring three site inspections; $100 for construction over $100,000..
03 How do I apply for a building permit in unincorporated Jackson County, IL?
To apply for a building permit in unincorporated Jackson County, IL, follow these steps: 1. In floodplain/SFHA development, the county building official reviews the application and compares site elevation to base flood elevation. 2. County issues or denies the development permit after review. 3. Covered floodplain development permits are reviewed within three days after filing as noted in the ordinance.
last verified April 2026 source Jackson County Board / County Code Enforcement ↗ entry id permits/illinois/jackson/unincorporated

Educational reference. Permit rules and fees change — confirm current requirements directly with Jackson County Board / County Code Enforcement before applying. Jaspector is not legal advice.