There is a Keele-Finch study underway "Keele Finch Plus" which has had to consider plenty of restrictions due to the take-off zone of the air port going directly over that intersection. https://www.toronto.ca/city-governm...lanning-studies-initiatives/keele-finch-plus/ You can find documents about the airport studies on that site such as: https://www.toronto.ca/wp-content/u...-plus-Phase1-downsview-airport-needs-full.pdf
The university heights development had height restrictions (http://havendevelopments.ca/haven-properties/university-heights/) as well as this one from CTN developments at 1315 Finch (http://ctndevelopments.com/1315-finch-ave-west/)
So without the airport there can be huge implications for Keele and Finch in terms of density in a transit hub.
Keele-Finch has the oil farms as an issue. There's a restriction to how close residential can be built to them.