Illinois Building Permits by Jurisdiction
No comprehensive statewide building code (home rule), but energy, plumbing, and accessibility codes apply statewide, and since 1/1/2025 an IBC/IEBC baseline applies in jurisdictions without a local code (PA 103-0510).
Jurisdiction-by-jurisdiction verification is in progress — pages marked “being verified” show the statewide baseline until confirmed locally.
Cities (12)
Aurora · Kane Co.Bloomington · McLean Co.Champaign · Champaign Co.Chicago · Cook Co.Cicero · Cook Co.Elgin · Kane Co.Joliet · Will Co.Naperville · DuPage Co.Peoria · Peoria Co.Rockford · Winnebago Co.Springfield · Sangamon Co.Waukegan · Lake Co.