The developers of the Chelsea Barracks site have been told they must start delivering the homes they promised, or to sell up and release the land.
The project has been put on hold, apparently because of the current economic climate. But Westminster Council is urging the Qatari developers to start building their vision.
Cllr Jonathan Glanz from Westminster Council.
More top news
One of the teenagers was left so badly burnt doctors say he may lose his eyesight.
Jame Murray's challenge is to deliver Mr Khan's manifesto pledge to build more than 50,000 new homes a year - half of them affordable.
Ryan Lee was removed from the finishers' list because he was not picked up by the 5k checkpoint.