Khan has managed to increase the amount of affordable housing from 92 homes (20 per cent of the total) to 185 (40 per cent) on the dMFK and Hawkins/Brown-designed development of the former National Institute for Medical Research.
In February, Barnet Council in North-West London went against the advice of its own planning officers and refused permission for the scheme. But in May, Khan called the application in for review, saying the council was "significantly under-delivering" against its housing completion and affordable housing targets.
The latest announcement is a further sign that the Mayor's tougher approach towards developers, compared with predecessor Boris Johnson, is delivering higher proportions of affordable housing.
Khan said: "Delivering more of the genuinely affordable homes Londoners need is one of my top priorities as Mayor, and I will use all the tools at my disposable to do so".
NW3CLT is a Community Land Trust aiming to provide locally owned housing and workspaces for local people.
