From a youth spent in the boroughs of New York City and other great cities of the world, to his beginnings as an architect in Toronto, Ken Greenberg has long recognised that cities at their best provide much of what people seek in a place to call home. Community, places of culture and business that people can walk to, mass transit and a wealth of amenities that couldn't be supported without a city's density: the mid-century drive to suburbanisation deprived many communities of these inherent advantages of urban living.