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Home / Illinois Permits / Chicago

Building Permits in Chicago, Illinois

City in Cook County
Local details being verified — statewide baseline shown

Adopted Construction Codes

These are the state-level code editions for Illinois. They apply in Chicagounless a verified local adoption or amendment is noted — in local-adoption states, confirm the city or county's own code editions with the building department.

CodeEditionAdoption
IBC — International Building Codebaseline20 ILCS 3105/10.09-1 (jurisdictions without a local code, eff. 1/1/2025) · source ↗
IECC — International Energy Conservation Code2021Illinois Energy Conservation Code, 71 Ill. Adm. Code 600 · source ↗
IL Plumbing — 2014Illinois Plumbing Code, 77 Ill. Adm. Code 890 (state-authored) · source ↗

Permit Requirements

Permit-type details for Chicago (fees, required documents, inspection sequence) are being verified with the local building department. In the meantime, contact the city building department directly, or ask the BuildSpec Copilot about statewide requirements.

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