This advertisement was featured in the February 12 1966 edition of The Daily Telegraph, where two thousand pounds bought you a block of land at where I believe is Camelot Court, Carlingford.
And just two days before we embraced the dollars and cents!!!
In today's money, this was equivalent to around $50 000 according to the RBA Inflation Calculator.
Source: Stocks & Holdings Projects. 1966. "Carlingford: Land!" (Advertisement). The Daily Telegraph, February 12:44.