Connecticut enforces a single, uniform State Building Code for commercial projects statewide. Local jurisdictions cannot adopt different codes but may propose amendments, subject to state approval and statutory limitations, if justified by local conditions.
Connecticut adopts and enforces statewide building and fire safety codes with no local amendments. Commercial projects follow uniform state standards without municipal deviations.
The Connecticut State Building Code is scheduled for an update effective July 1, 2026, incorporating the 2024 ICC model codes and the 2023 National Electrical Code. This update will affect building, fire, energy, electrical, mechanical, and plumbing codes statewide.