Interesting points RE the hedonic index, I'm not sure what the intended use case is but we can approach it from another angle if you would like.

A more up to date government source has the following;

> Weighted average (mean) of the eight capital cities Residential Property Price Index... rose 16.8% over the last twelve months.

We could go on forever trying to work out the exact numbers. The main thing I want to do is show non-australians how quickly our prices have risen and are rising!

https://www.abs.gov.au/statistics/economy/price-indexes-and-...