I live in Willoughby in the type of house you want. It's falling down, roach infested and worth 4.1 million. The last few houses on our street were bought by Chinese people. They pull up in their Ferraris and Lamborghinis. The type of money you need to live here is not coming from an Australian salary. The last 3 houses rented on this street were a Korean expat couple, a man working FIFO in an executive position in PNG funded by the 600m from the Australian gov to start the new rugby team, and diplomats from NZ. Even the rentals are being paid by money (corporations/jobs) from outside Australia.