Surprisingly Dublin doesn’t feature near the top of the list. But it is rated “severely unaffordable”.
I came across this survey after reading this article
[*Aussie homes now least affordable in the world * (https://www.scopical.com.au/articles/News/Australia/2187/Aussie-homes-now-least-affordable-in-the-world)
Here is the link to the pdf
[*4th Annual Demographia International Housing Affordability Survey - 2008 * (https://www.demographia.com/dhi-ix2005q3.pdf)