Building Code Changes for Existing Buildings In 2023, the commercial building code changed the process for permitting heat pumps and natural gas heating systems. The municipal code directs further changes related to replacing and electrifying heating and cooling equipment.
Permitting a Heat Pump Many of Denver's contractors are unfamiliar with exactly how to properly pull a permit for a heat pump. That's okay! We're here to help.
Electrification Feasibility Reports (EFRs) Denver's building code now requires additional paperwork to permit a like-for-like gas equipment replacement. The Electrification Feasibility Report (EFR) is one option for additional paperwork you can submit with your permit.
Commercial Building Additions or Alterations Existing commercial buildings undergoing an addition, alteration, and/or change of occupancy or use must follow the requirements in Chapter 5 Existing Buildings of the Denver Energy Code.