This is just what I read awhile ago, did this not happen:
"The local council,
Haringey, desperately keen to keep Spurs investing £400m in a deprived area, agreed last year to reduce the club's obligations towards transport and other community improvements, originally part of planning permission for the new stadium, from £16.4m down to £0.5m. In total £41m of public money from the council and the mayor of London's office has been promised for the area around Spurs' proposed new stadium; the authorities' sense of urgency prompted by the shock of the
riots that erupted in Tottenham in the summer of 2011.
Also encouraging Levy to stay was that the standard London planning requirement for housing developments – to include 50% affordable housing – was waived for Spurs, after he argued that to make the new stadium financially viable, the club needs all the money it can make from selling 285 apartments on the site of the current ground at full market rate."