During the London Mayor election, Boris Johnson talked about how land owned by the London Development Agency could be used to provide 32,000 new affordable homes.
But three years on a mere 1,431 have been built.
Ealing Lib Dem councillor Gary Malcolm has more on the story over on his blog, including this quote from London Assembly member Mike Tuffrey:
The Mayor has completely failed Londoners by not delivering the promised mechanism to unlock these sites, and is now saying it may not even go ahead at all. There is a huge chasm between what the Mayor said was possible and what actually has been achieved.