38% - Fall in new homes completions in Scotland between 2007/08 and 2011/12, according to Scottish government figures
72 - Total number of storeys that will constitute two new towers in the Vauxhall Nine Elms Battersea opportunity area in south London, which were approved by the communities secretary
81,000 - Number of homes that could be built on the green belt under current plans, according to the Campaign to Protect Rural England.