To ask the Secretary of State for Communities and Local Government what proportion of available brownfield sites was used for the provision of new homes in each of the London boroughs in each of the last five years. (153568)

This information requested is not held centrally. However almost all housing development in London takes place on brownfield land (97 per cent. in 2005). Also, the stock of available brownfield land is not static as new sites are coming forward for development all the time. Historically, studies to provide a comprehensive technical analysis of London's potential for future housing growth have been the responsibility of the Mayor of London, or predecessor body, and the boroughs. Regular studies have been undertaken, namely London's Housing Capacity (Greater London Authority, September 2000) and the 2004 London Housing Capacity Study (GLA, July 2005). As a result, housing targets for London have recently been increased, from 23,000 homes per year to 2006-07, to 30,500 homes per year from 2007-08.