The Department holds figures on capital works to windows (double-glazing), central heating and insulation for all local authority social sector dwellings. This information is collected and published through the annual Local Authority Business Plan Statistical Appendix (BPSA) returns. A set of tables containing information for the last seven years (2000-01 to 2006-07) by local authority and region has been placed in the House Libraries. Data are not collected at a constituency level.
Since 2001, many local authorities have chosen to transfer their entire social stock to registered social landlords through the option of large scale voluntary transfer (LSVT). The table reflects the increasing occurrence of these changes over the seven-year period as data are only collected from authorities which own their own stock or have set up an arm’s length management organisation to manage their stock.
The Tenant Services Authority, the regulator of all housing associations in England, does not hold any information on energy efficiency measures put in place under the Decent Homes programme by housing associations.