Hundreds of properties across City & East could be sold off under government plans to reduce the number of council homes.
Liberal Democrats have criticised the move as “irresponsible” and said it would ramp up demand for housing and increase rents.
It comes despite figures from homeless charity Shelter which show there are 47,507 families on the housing waiting list across City & East.
The Housing and Planning Bill - debated in the House of Commons on Monday - includes plans to force councils to sell low rent homes in high value areas, as the Conservative Party rolls out its Right to Buy scheme.
Elaine Bagshaw, London Assembly candidate said: “The Tory plans are irresponsible and will mean even less cheap to rent and social homes where we need them most.
Once sold off to the private market, we lose them as affordable homes forever. It means more families on low to middle incomes will struggle to get a decent home.
The Liberal Democrats will fight to defend social housing. The Tories should not be forcing local councils to sell off homes people in City & East need. Our Labour councils in this area can always find room for luxury flats and pet projects like new Town Halls - it’s time then found room for decent homes for local families."