Australia has some of the world's highest house prices, in some of the lowest-density cities. But new data from Domain shows land sizes are getting smaller - and even though prices are rising, they'd be much, much higher if we not for this shift towards greater density.

Dr Nicola Powell, Domain's Chief of Research and Economics, talks to Sean Aylmer about why it might be time for the Australian property dream to change - and explains a different way of picking suburbs offering value for money.