The London Assembly Housing Committee will meet today to discuss whether affordable housing can be provided for Londoners.
The committee will assess draft guidance from the Mayor which aims to streamline the construction of new homes and increase the proportion which is "genuinely affordable".
The Mayor's plans to build more affordable homes in London will be scrutinised today.
The London Assembly will ask a panel of experts if the Mayor will reach his target to build 55,000 affordable homes by 2015.
To reach his goal, around 9,000 new-build starts should have begun, but the committee says only a third of these were confirmed by the end of September.
We want to hear your thoughts on the Mayor's plan for affordable rents.
Is charging up to 80% of the market rent a sensible measure to make sure it's worthwhile for developers to build affordable housing?
Our Political Correspondent attended the briefing in which the Mayor revealed he also wants to get his hands on government owned property in the capital.