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.
Londons housing market continued to show signs of growth during June, as prices hit a three and half year high.
New figures reveal it was the strongest month for house prices since January 2010, mainly fuelled by increasing numbers of prospective buyers returning to the market.