Existing housing stock Learn how we're improving social and council houses through the Decent Homes Backlog Programme across the capital. Housing design The Mayor is investing to improve the quality of both new and existing homes in London. Find out more. Warmer Homes If you're a Londoner on benefits you may be eligible for free home improvements to make your heating more affordable. Energy in buildings Working to reduce energy demand in buildings. RE:NEW programme The Mayor’s award-winning programme to help make London’s homes more energy efficient. RE:FIT programme The Mayor’s award-winning programme to help make London’s non-domestic public buildings more energy efficient. Related content Estate Regeneration Guide The Mayor is ensuring residents are involved in estate regeneration. Development sites map Find out how our land is being developed to create new homes and jobs for Londoners. Homes for Londoners See how the Mayor is tackling the housing crisis and building more affordable homes.