Colorado 2026 Building Code for Denver Custom Homes and ADUs

Colorado 2026 Building Code for Denver Custom Homes and ADUs

The new building code will raise energy efficiency standards for all new homes, additions, and ADUs in Denver. Projects must include tighter insulation, stronger air sealing, and modern electrical systems for heating and cooling. While this can increase upfront costs, the goal is to lower utility bills over time and create healthier, more resilient homes.