The company managing homes on behalf of Westminster City Council is marketing ex-council homes through its estate agency arm for more than £450,000 and advertising them for rent at three times the level they would have been had they remained under local authority control. It has prompted Labour councillors in the borough to call on the Government to cap the rents buy-to-let landlords charge for ex-council properties at the new affordable rent levels - up to 80% of the market rate. In Westm...