§ Mr. Austin Mitchell
To ask the Deputy Prime Minister what his estimate is of the costs of repair and renovation of social housing over the next 10 years under(a) council ownership, (b) registered social landlord ownership and (c) arm's length management organisation ownership. 
§ Keith Hill
Local authorities and registered social landlords are expected to put in place plans to meet the decent homes target 2010.
At 2001 there was an estimated backlog of £20 billion of repair and improvement work required for local authority housing. The Office of the Deputy Prime Minister expects local authorities to have tackled the majority of this backlog by 2010.849W
Local authorities have been asked to complete Option Appraisals by July 2005 in which they will consider, with their tenants and given their particular circumstances, which options will provide best value for money in meeting the decent homes target They will take into account a variety of relevant factors including the trend in real construction costs and the scope for improved efficiency in carrying out this work
§ Lynne Jones
To ask the Deputy Prime Minister what his estimate is of the total number of properties owned by(a) registered social landlords and (b) each of the 20 largest registered social landlords. 
§ Keith Hill
Housing association (registered social landlord) stock in England as at 31 March 2003 was estimated at 1,728,000.
The 20 largest housing associations (measured by stock) were as tabled following and together accounted for about 21 per cent. of the total housing association stock.
Name of housing association Total stock at 31 March 2003 North British Housing Ltd 36,567 Home Group Limited 28,558 Anchor Trust 27,313 Sanctuary Housing Association 25,927 London and Quadrant Housing Trust 23,915 The Guinness Trust 20,019 Riverside Housing 19,889 Knowsley Housing Trust 16,480 Peabody Trust 16,432 William Sutton Trust 15,726 Northern Counties Housing Association Limited 15,575 Hyde Housing Association Limited 14,518 Helena Housing Limited 14,214 Orbit Housing Association 14,171 Metropolitan Housing Trust Limited 13,801 Housing 21 12,558 Focus Housing Association Limited 12,365 Pennine Housing 2000 Limited 12,108 Circle Thirty Three Housing Trust Limited 11,949 Broomleigh Housing Association Limited 11,789 Source: Housing Corporation, Regulatory and statistical Return 2003.