On the outer edges of Melbourne, where paddocks are becoming suburbs faster than anywhere else in Australia, a design competition has quietly posed a question the city has long avoided: what if the template for new housing was built around people rather than cars? The Urban Design Forum's August competition asked emerging architects to reimagine a six-hectare site near Ballan station, and the answers that came back — clustered homes, shared land, restored grasslands — suggest that the sameness of Australia's greenfields estates is a choice, not an inevitability. Whether that choice changes now