Estimates of central Government asset sales up to 2010-11 can be found in the ‘Budget 2009: the economy and public finances—supplementary material’, on table 2.3. This is available at
http://www.hm-treasury.gov.uk/d/Budget2009/bud09_econfinances_968.pdf
The Operational Efficiency Programme reported at Budget 2009 on areas for potential future Government asset sales. The full report can be found at
http://www.hm-treasury.gov.uk/d/oep_final_report 210409_pu728.pdf
Estimates of proceeds available to Departments after 2011-12 will be provided at future fiscal events.
As set out in the Consolidated Budgeting Guidance, the current budgeting framework is designed to ensure that most proceeds from fixed asset sales are made available to Departments. This is set out in sections 7.20 to 7.25 of the Consolidated Budgeting Guidance, available at
http://www.hm-treasury.gov.uk/d/consolidatedbudgeting_guidance200910.pdf