The minister said this total included costs on legal, commercial, financial and technical consultancy and other professional fees, which were incurred from when the scheme was first launched in 2005 until 2009.

BBC: Failed offices scheme cost ?13m

CERA, a consultancy, calculates that 31 countries have commercial nuclear-power reactors today.

ECONOMIST: Nuclear power

Residential rents have increased by more than 50% since 2002 in the West End, for example, faster than commercial rents, says Anthony Duggan of Drivers Jonas Deloitte, a property consultancy.

ECONOMIST: Residential skyscrapers come of age in Britain