Energy Department analysis estimates $14,000 increase in new home costs due to green codes

The Energy Department reported that updated green codes could add $14,000 to the cost of new homes. This analysis indicates that the adoption of the 2024 International Energy Conservation Code (IECC) would increase residential construction costs by more than $9.2 billion annually compared to the 2006 code levels. Energy Secretary Chris Wright stated that families should not face higher home costs due to energy-related mandates. He criticized climate regulations for increasing housing costs and reducing consumer choice, while expressing support for President Trump's efforts to maintain affordable energy access. The IECC sets energy efficiency standards for new construction, including requirements for walls, lighting, and HVAC systems. States are required to consider adopting these codes, which could lead to significant cost increases for single-family homes. Most states have not yet adopted the latest version of the code, with many still using older versions or their own codes. The Energy Department has requested that the International Code Council limit the scope of the green codes.