London seems to have done that after 2012. The stadium is being reused for various sports events and West Ham matches, the Aquatics Centre is a public swimming

London seems to have done that after 2012. The stadium is being reused for various sports events and West Ham matches, the Aquatics Centre is a public swimming pool and gym, various other parts were converted in housing and an academy, etc. Of course, the fact it's in a very expensive city where leaving land unused would be commercial suicide helps a bit too.