The purpose of the fact file (produced annually) is to gather together in one volume data on important trends related to domestic energy use, and in particular on the measures that have been taken to improve energy efficiency. Most of the tables relate to total housing stock and will be mainly of use to government departments and others interested in research or planning at that level. The reports cover the period from 1970 (just before the first oil crisis) until 2011.
The the fact file covers the United Kingdom and not just Great Britain. It is based on data collected by the English Housing Survey and its devolved equivalents, and prepared under contract to DECC by Cambridge Architectural Research and Loughborough University.