Here is another classic advertisement from Parkes Developments in 1966. This was for the Crestwood Estate at Baulkham Hills, in the vicinity of St Michaels Catholic Church. Note that while Australia now had decimal currency, Parkes advertised the deposit price in pounds.
Source: Parkes Developments Pty. Ltd. 1966. "Crestwood Estate" (Advertisement). The Sun, October 7: 47.