The 5th annual Demographia Housing Affordability Survey ranks Sunshine Coast in Australian the most unaffordable place to live in the world. Australia has 13 of the most unaffordable cities in the top 30! Most commentators are roasting governments across Australia at state and local levels for holding onto land (to keep land prices – taxes high) and not releasing enough. Only the Victorian government is given some praise for releasing 250,000 lots in the past year.
You can download the full report here.(pdf) You can also view their website by clicking here.
Updated: I have also added a report from Macquarie University Released a few years ago. You can download this here, it tracks Australian House Prices from 1970 – 2003.