Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, with reference to the policy paper entitled Heat and buildings strategy, published on 19 October 2021, CP 388, whether her Department has made a recent estimate of the number of homes for which it would not be (a) cost-effective, (b) practical and (c) affordable to meet energy performance certificate band C by 2035.

There is no 'one-size fits all' approach to improving the UK's housing stock and whether it is practical, cost-effective and affordable for an individual home to reach EPC C will depend on the context; therefore, no estimate has been made.