As I was examining some properties in the upper northern suburbs of Sydney, the leafy suburbs where residents enjoy a great lifestyle, the planning officer noted many dual occupancy developments were no longer allowed as of 2011.

Such developments are now prohibited unless the allotment is a minimum 3,000 square metres, or 1,500 square metres of a future subdivision. My client showed me several examples of well-designed houses on 700 square metre lots. The subject land had a bus stop at front which dropped students and office…