Empty offices + housing shortage = office to resi conversions. It must have sounded like a simple enough sum to government ministers when they announced a temporarily relaxation in planning rules to allow commercial buildings to be changed into homes. As usual, the devil is in the detail. The strength of opposition to the policy certainly took them by surprise, and the version finally brought in from May 2013 is heavily watered down. But despite dystopian warnings from local authorities, it’s not only unlikely to transform the hearts of Britain’s towns and cities – conversions will only take place at all in a very specific set of financial, technical and political circumstances. I investigated the opportunities for the RICS magazine, Modus.