For many purposes, Australia and Texas are comparable. Yet Texas has far cheaper housing than Australia. The difference, according to some researchers (and I agree) is that Australia has very complex, overlapping zoning laws and constricted land release; Texas does not.
Another interesting case is Germany. In Germany you have a constitutional right to build a home. Germany has apparently had, in real terms, quite flat house prices for a long time despite not being particularly land-rich compared to places like Texas or Australia.
http://www.cis.org.au/research-scholars/cis-research-scholar...
I can't locate the Texan comparison, but here's one discussing the UK and Germany:
http://www.cis.org.au/media-information/opinion-pieces/artic...
The same comparison again -- the charts are quite telling:
http://macrobusiness.com.au/2011/06/how-germany-achieved-sta...
I think house prices were also driven up by dual income families who can afford more expensive housing.