Modernizing Chicago’s Construction Codes


In April 2019, the City Council of Chicago adopted the Phase 2 building code requirements which became optional on December 1, 2019 and will be mandatory starting on August 1, 2020. For information on the transition period, click here. For information on the modernized code, click here.

AIA Chicago will be offering education about the new code: dates and topics to be determined.

In late 2019, the Dept. of Buildings planned to announce its framework for considering updates to plumbing and mechanical requirements of the code. Suggestions for future code changes should be submitted to