This article has a really useful interactive chart showing housing affordability in several countries.
Frankly, houses look horribly expensive in Oz, and dirt cheap in the US (remember that the currency is irrelevant here)
At Th Age's website, you can select which countries to show, and compare them with your own. Nice work!
Disclaimer. After nearly 40 years managing money for some of the largest life offices and investment managers in the world, I think I have something to offer. These days I'm retired, and I can't by law give you advice. I do make mistakes, but I try hard to do my analysis thoroughly, and to make sure my data are correct. Remember: the unexpected sometimes happens. The expected does too, but all too often it takes longer than you thought it would.
The Goddess of Markets punishes (eventually) greed, folly, laziness and arrogance. No matter how many years you've served Her. Take care. Be humble. And don't blame me.
BTW, clicking on most charts will produce the original-sized, i.e., bigger version.