The move follows the mayor identifying land where 37,000 new affordable homes will be built in the capital.
Boris Johnson has reached a provisional agreement with 14 London boroughs to deliver over 16,750 homes while the remaining 19 boroughs have identified the sites for a further 20,500.
A City Hall statement said it expected to conclude provisional agreements with these boroughs in the coming months to meet his manifesto pledge to deliver 50,000 affordable homes over three years.
Discussions with the 14 boroughs who have agreed provisional agreed targets over measures to give local communities more influence over housing in their area will begin in the coming weeks.
Boris Johnson said: “In the past City Hall issued dictats and centrally produced targets, regardless of local circumstances.
"We have taken a completely fresh approach and based our discussions with the boroughs on the individual circumstances in each area rather than treating every local authority the same regardless of need, demand or housing stock.
“I am delighted to report that, together with councils across London, we have already identified where 37,000 new affordable homes will be delivered, which is over three quarters of my ambitious affordable housing target.
“This is extremely encouraging news for Londoners who are looking for their first step on the housing ladder and a much needed boost for the construction industry during the current economic downturn.”