the national housing federation said the subsidy - which will be funded by forcing councils to sell off their most expensive properties to buy their home .
but the national housing federation said the move would do nothing to tackle the housing crisis - and could even make it worse by cutting the number of low-cost social homes available for poor families .
labour jumped on the remarks this morning , claiming the policy had ` unravelled ' and pointed to figures showing that last year just 479 council homes were sold off .