Bank of England moves to avert housing boom
26 June 2014 Last updated at 13:49 BST
A cap on the proportion of home loans that can be lent at high multiples of income has been proposed.
The plan was outlined by the Bank of England as governor Mark Carney said the housing market could be a threat to the UK economy's stability.
Under the proposal, lenders will not be allowed to lend any more than 15% of residential mortgages at more than 4.5 times a borrower's income.
Simon Jack reports.