This report examines the actions needed to support an ambitious programme of domestic energy retrofits in West Yorkshire. The Combined Authority has overseen delivery though the Better Homes Yorkshire partnership since 2015. However, the contracts with partners come to an end in 2023, so the ambition is to build on its success and scale-up the market. Although considerable progress has been made on energy efficiency in homes, delivery has stalled owing to the limitations of funding, the cost and complexity of renovating the housing stock and the willingness of homeowners to upgrade their property. It is also widely recognised that to reduce bills and make homes net-zero carbon, will take a ‘whole house’ approach to reduce energy demand and supply low-carbon energy.