The assumed housing debt, the subsidy capital financing requirement, for each authority is calculated annually by my Department using data supplied by the local authorities themselves on their Housing Revenue Account (HRA) Subsidy base data forms. The information is published, after consultation, in annual HRA Subsidy Determinations. The 2010-11 Determination is available on the Communities and Local Government website at this address:
http://www.communities.gov.uk/publications/housing/hradetermination201011