North York’s planning department prepared a series of maps tracing the municipality’s growth. The following description was provided for the 1971 map (population: 520,000):
“With the notable exception of Windfields Farm, the filling in of large subdivided tracts of land is now almost completed. What remains in the borough? There are vacant single-family and apartment building lots. Also, not all land is at its full potential use as, for example, where single-family homes stand on land planned for apartments. The planned population of the borough, according to the district plan program is 734,000 people. North York is expected to reach this figure sometime after 1990. During the 1966–71 period the major developments in North York include the Ontario Science Centre, Flemingdon Park and Fairview Mall Shopping Centre.”