https://www.elledecor.com/life-culture/fun-at-home/news/a765...
https://www.elledecor.com/life-culture/fun-at-home/news/a765...
Another difference is that historically Australia has also had poorer quality of housing as well, eg. inadequate insulation (https://www.abc.net.au/news/2017-01-03/why-bad-housing-desig...). But yes we do have some pretty big houses, at least compared to most of Asia, much of the UK etc.
What is artificially created demand for real estate? Isn't all demand for real estate "real", whether as a home or an investment.
But in Australia you cannot tax-deduct the interest on your own home, whereas in the US (IIRC) you can. I would expect the artificial inflation to be higher under the US system.
The real causes of the high house prices IMO are: a) poor government policy, from federal to council level, the net effect of which is preventing the market to be adequately supplied with new housing; and b) a range of cultural factors (notably the image of housing as a safe investment, that is being cultivated with increasing desperation by the real estate industry) that results in channeling of investment into established housing.
What most people ignored is that it would spike rents and cause more short-term harm, especially as lending tightened
Everybody was casting for something to blame and ignored the most obvious solution staring them in the face - an increase of property supply (as you've said)