Sadiq Khan: Labour plans for rent and tenancy controls
1 May 2014 Last updated at 15:02 BST
Labour would bring in rules over rents and tenancies to cover the nine million people who rent homes in the private sector, said Sadiq Khan.
Similar plans in Ireland and other parts of Europe saw more properties become available, said Labour's London spokesman.
He spoke to Jo Coburn on the Daily Politics about plans announced by leader Ed Miliband as a key part of Labour's campaign for the local elections on 22 May.