Question to the Ministry of Housing, Communities and Local Government:

To ask the Secretary of State for Housing, Communities and Local Government, how many houses in the UK have an energy performance certificate of (a) E or lower and (b) D or higher.

At the end of September 2018, the number of houses in England and Wales which had a valid energy performance certificate (EPC) rated at E or lower was 3,177,158 and D or higher was 8,169,369. Additionally, other types of domestic dwellings, including flats, bungalows and maisonettes, which had a valid EPC rated at E or lower was 1,229,051 and D or higher was 5,584,059.

This information is available at: https://www.gov.uk/government/collections/energy-performance-of-buildings-certificates

EPCs for domestic dwellings in Scotland and Northern Ireland are a devolved matter.