Calhoun County, IL — 2026 Building Permit Guide

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§ 01

Permit authority

Calhoun County Building Department

Street address

301 S. County Rd., Hardin, IL 62047 (Marvin Richter Government Building)

Phone

618-576-9700 Ext. 4

chris.behrens@calhouncountyil.gov

Coverage

Unincorporated community. Managed entirely by Calhoun County Building Department.

Website

Department website

§ 02

When a permit is required

Permit triggers and exempt work for Calhoun County

All construction. Note: Mozier is in a heavy floodplain area; strict floodplain management applies.

Scope of work

Permit?

Minor maintenance

Exempt

Exempt Minor maintenance

Note: Floodplain properties require strict compliance. Verify all requirements with County Building Inspector before proceeding.

Required documents

Elevation certificates
Site plans
Construction drawings

Building code: IBC 2021, IRC 2021, IEBC 2021, NEC 2023 (State Mandate PA 103-0510)
Permit validity: 1 year from date of issuance.
Owner-builder: State and County rules apply.
Contractor requirements: State license required for trades (plumbing, roofing, electrical).

Source: Calhoun County Building Department ↗

§ 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

For properties in floodplain areas, submit a Floodplain Development Permit application.
05

Pay the applicable fees based on the project valuation.
06

Wait for plan review and permit issuance.

Typical processing time: Varies; typically 1-2 weeks depending on project complexity and inspection schedule.

Source: Calhoun County Building Department ↗

§ 04

Fee schedule

Effective July 1, 2025

Fee type

Amount

Minimum permit fee

$100.00

Plan check fee

10% of permit fee for Residential (min $100); 35% for Commercial

Permit fee formula

Valuation-based: $100 + $5 per $1,000 for the first $100k; rates decrease for higher brackets.

Trade permit fee

Included in valuation-based formula

Reinspection fee

$100 per reinspection

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: By appointment

Typical sequence: Standard inspection sequence applied.

Source: Calhoun County Building Department ↗

§ 06

Frequently asked

Common questions about unincorporated Calhoun County permits

01 Do I need a building permit in unincorporated Calhoun County, IL? ▸

All construction. Note: Mozier is in a heavy floodplain area; strict floodplain management applies.

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. For properties in floodplain areas, submit a Floodplain Development Permit application. 5. Pay the applicable fees based on the project valuation. 6. 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: Minor maintenance. Note: Floodplain properties require strict compliance. Verify all requirements with County 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/mozier

Report a correction

Educational reference. Permit rules and fees change — confirm current requirements directly with Calhoun County Building Department before applying. Jaspector is not legal advice.

Unincorporated Calhoun County