The British housing market has "deep, deep" problems, according to the Governor of the Bank of England.
In an interview with Sky's Murnaghan show to be broadcast in full later this morning, Mark Carney warns that rising house prices represents the biggest current risk to the economy.
And the number of large mortgages being approved to house buyers is on the rise, he adds.
Mr Carney says that the UK is in need of new house building.
He says that compared to his home country of Canada, for example, the UK built half the number of new homes every year despite having twice the population.
Canada builds around 200,000 new homes a year compared to just 133,000 similar properties that were built in the UK last year.
Mr Carney said: "The issue around the housing market in the UK … is there are not sufficient (numbers of) houses (being) built."