From its very beginnings as a penal colony, Sydney’s growth has never been particularly well-organised. It was sporadic, uncontained, rising in spurts. But the urban growth that produced suburbs like Surry Hills and Paddington – once slums, now among the most in-demand in the city – is now producing areas like Box Hill and Austral , suburban areas lacking in adequate roads, schools, hospitals and community facilities. After more than 200 years of expansion, can Sydney build new suburbs better? Is it too late to improve the ones that have already been built? In the final part of the Herald’s Stranded Sydney series, we look at how to fix one of the greatest blights on our city. 1. Plan everything Of all the greenfield developments in Sydney, Oran Park in the city’s far south-west is among the better examples of getting it right. Different types of homes, including townhouses, large and small freestanding homes, and some apartments, all appear around each other.…