Chicago, IL Building Safety: Green Building Code (2026)

Chicago's locally amended Energy Conservation Code (Title 14N) offers a National Green Building Standard compliance alternative. Instead of meeting the prescriptive or performance energy paths, a project can register with an approved third-party certifier under ICC 700 and design to the gold or emerald certification tier. Construction documents submitted to the building official must include proof of registration, evidence the design is eligible for gold or emerald, and a list of compliance features. Within 180 days of final inspection or certificate of occupancy, the owner must file written third-party certification confirming the project actually achieved that gold or emerald rating: the code treats the certification itself as the compliance proof, not just a design intent.