Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, how many properties in (a) Wales (b) England (c) Scotland (d) Northern Ireland, have received cavity wall insulation in each year since 2018.

Between January 2018 and September 2021, 205,464 CWI measures were installed across Great Britain under ECO and the Green Homes Grant scheme (England only). Table 1 displays the annual CWI installation data for Great Britain and Table 2 displays the regional break down of total ECO measures delivered within the same time period. We are unable to provide measure-specific data by region and there is no available data for Northern Ireland.

Table 1:

Table 2: