Ministry of Housing, Communities and Local Government.
"English Housing Survey 2023 to 2024: headline findings on housing quality and energy efficiency."
,
30 January 2025,
https://www.gov.uk/government/collections/english-housing-survey-2023-to-2024-headline-findings-on-housing-quality-and-energy-efficiency.
Homes in energy efficiency bands A to C rose from 23% to 52%, while those in bands E to G fell from 26% to 9% over the past decade(Reported 30 January 2025)