Reports on new ODPM commissioned research from the College of Estate Management that has found tenants appealing the official valuations of their council homes are routinely having more than 10% knocked off the asking price, especially in London. "Valuing for right to buy : a review of the valuation process in sales of local authority housing to sitting tenants" (J126372) also reveals that 36% of landlord valuations were reduced on appeal by more than 10% and only 2% increased, that the number of appeals in England has risen by 50% over the four years since 1997 and the 25% of councils with the highest appeal rates accounted for 54% of all appeals and 31% of all right-to-buy admissions. It also recommends a valuation code of practice by and for local authorities and Valuation Office Agency officers. Suggests that pressure is mounting to make it harder to sell off council stock at a discount. Includes a chart covering the effects of appeals on valuations.