On this page 6
§ 02
When a permit is required
Permit triggers and exempt work for Calhoun County
New construction, additions, structural alterations, mobile home placements, and major repairs.
Cosmetic work (painting, wallpapering, carpeting)
Minor repairs using like-for-like materials (verify with inspector)
Most agricultural structures (still require zoning/setback approval but may have reduced fees)
- Exempt Cosmetic work (painting, wallpapering, carpeting)
- Exempt Minor repairs using like-for-like materials (verify with inspector)
- Exempt Most agricultural structures (still require zoning/setback approval but may have reduced fees)
Note: Verify edge cases with the Building Inspector before proceeding.
Required documents
- Site plan
- Construction drawings (blueprints)
- Estimated project value
- Floodplain certificates if applicable
- Building code
- IBC 2021, IRC 2021, IEBC 2021, NEC 2023 (State Mandate PA 103-0510)
- Permit validity
- Typically 6 months to 1 year; verify specific expiration at time of issuance.
- Owner-builder
- Homeowners may perform their own work on primary residences. Plumbing requires an Owner-Occupant Affidavit.
- Contractor requirements
- No county-wide general contractor license. Plumbers must have an Illinois State license. Electricians must show proof of a valid municipal license from an Illinois jurisdiction.
§ 03
Application process
Typical processing: Varies; typically 1-2 weeks depending on project complexity and inspection schedule.
- 01 Consult with the Building Inspector (Chris Behrens) to verify if a permit is required for the specific project and location.
- 02 Complete the Building Permit Application form (available at the Marvin Richter Government Building).
- 03 Submit site plans, blueprints, and project specifications.
- 04 If in a floodplain, submit a Floodplain Development Permit application.
- 05 If doing plumbing as an owner-occupant, submit an Owner-Occupant Affidavit.
- 06 Pay the applicable fees based on the project valuation.
- 07 Wait for plan review and permit issuance.
Typical processing time: Varies; typically 1-2 weeks depending on project complexity and inspection schedule.
§ 04
Fee schedule
Effective July 1, 2025
Fee type
Amount
01
Minimum permit fee
$100.00
02
Plan check fee
10% of permit fee for Residential (min $100); 35% for Commercial
03
Permit fee formula
Valuation-based: $100 + $5 per $1,000 for the first $100k; rates decrease for higher brackets.
04
Trade permit fee
Included in valuation-based formula
05
Reinspection fee
$100 per reinspection
06
Penalty (no permit)
Double fee penalty for starting work without a permit
Checks made payable to Calhoun County Treasurer.
Fees change periodically. Confirm at the official fee schedule ↗ (effective July 1, 2025) before budgeting.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- 618-576-9700 Ext. 4 (phone)
- Inspection hours
- Wednesdays 8:30 AM - 4:00 PM (standard office hours); inspections by appointment
Typical sequence: Typical sequence: Footing/Foundation, Framing/Rough-In, Final.
§ 06
Frequently asked
Common questions about unincorporated Calhoun County permits
01 Do I need a building permit in unincorporated Calhoun County, IL? ▸
New construction, additions, structural alterations, mobile home placements, and major repairs.
02 How much does a building permit cost in unincorporated Calhoun County, IL? ▸
Building permit fees in unincorporated Calhoun County, IL are set by the local building department and vary by project type and valuation. The minimum permit fee is $100.00. Fees are calculated as: Valuation-based: $100 + $5 per $1,000 for the first $100k; rates decrease for higher brackets.. Plan check fee: 10% of permit fee for Residential (min $100); 35% for Commercial.
03 How do I apply for a building permit in unincorporated Calhoun County, IL? ▸
To apply for a building permit in unincorporated Calhoun County, IL, follow these steps: 1. Consult with the Building Inspector (Chris Behrens) to verify if a permit is required for the specific project and location. 2. Complete the Building Permit Application form (available at the Marvin Richter Government Building). 3. Submit site plans, blueprints, and project specifications. 4. If in a floodplain, submit a Floodplain Development Permit application. 5. If doing plumbing as an owner-occupant, submit an Owner-Occupant Affidavit. 6. Pay the applicable fees based on the project valuation. 7. Wait for plan review and permit issuance.
04 How long does it take to get a building permit in unincorporated Calhoun County, IL? ▸
Building permit processing times in unincorporated Calhoun County, IL typically run Varies; typically 1-2 weeks depending on project complexity and inspection schedule.. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in unincorporated Calhoun County, IL? ▸
Not all construction work requires a permit in unincorporated Calhoun County, IL. The following work is generally exempt: Cosmetic work (painting, wallpapering, carpeting); Minor repairs using like-for-like materials (verify with inspector); Most agricultural structures (still require zoning/setback approval but may have reduced fees). Note: Verify edge cases with the Building Inspector before proceeding. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in unincorporated Calhoun County, IL? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in unincorporated Calhoun County, IL via: 618-576-9700 Ext. 4.
last verified April 2026
source Calhoun County Building Department ↗
entry id permits/illinois/calhoun/calhoun-county
Educational reference. Permit rules and fees change — confirm current requirements directly with Calhoun County Building Department before applying. Jaspector is not legal advice.