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§ 02
When a permit is required
Permit triggers and exempt work for Hancock County
A building permit is required before beginning any construction, addition, alteration, repair, demolition, or change of occupancy under the Illinois Building Code (2025, IBC-based). Local jurisdictions enforce state code; contact your municipal or county building department for specific thresholds and exemptions.
- Building code
- Statewide minimum building code standards are effective under Illinois Public Act 103-0510 (2025-01-01), with no separate public Hancock County adopted code found.
- Contractor requirements
- No county general contractor license rule found; Illinois trade licensing still applies to electricians and plumbers.
§ 03
Frequently asked
Common questions about unincorporated Hancock County permits
01 Do I need a building permit in unincorporated Hancock County, IL? ▸
A building permit is required before beginning any construction, addition, alteration, repair, demolition, or change of occupancy under the Illinois Building Code (2025, IBC-based). Local jurisdictions enforce state code; contact your municipal or county building department for specific thresholds and exemptions.
last verified April 2026
entry id permits/illinois/hancock/unincorporated
Educational reference. Permit rules and fees change — confirm current requirements directly with County Engineer before applying. Jaspector is not legal advice.