The Prime Minister has dismissed concerns that the Help to Buy scheme will create a bubble in the housing market.
The first mortgages - where the government backs loans to those with five percent deposits - have gone on sale today.
The coalition's initiative is aimed at getting buyers who can only afford small deposits to buy a home.
Brian Harris is the Director of Mortgages for Christians. He told Premier's News Hour the initiative is not as good as many are making out: