The planning inspector might say that, but in Leicester the speedway stadium was used for a housing development a few years ago. Last year a new stadium was opened, the need for the facility just seemed to have gone quiet for a while. Also in Leicester the Saffron Lane velodrome was demolished and cleared for housing although I don't think it has been redeveloped yet. At the time the 2012 Olympics were just a faint hope. How useful that facility would now be if it had been refurbished.