Question to the Department for Business, Energy and Industrial Strategy:
To ask the Secretary of State for Business, Energy and Industrial Strategy, what proportion of homes with solid walls had no solid wall insulation as of 31 December 2021.
Information regarding cavity wall, solid wall and loft insulation levels from 2013 to 2021 can be found in the latest Household Energy Efficiency Statistics, detailed report 2021, https://www.gov.uk/government/statistics/household-energy-efficiency-statistics-detailed-report-2021. Tables 8.1 to 8.7 give estimates by insulation type, quarter, GB nation and an estimate of remaining potential.