Did the airport overlay have that much of an impact on commercial high rise development? I say this as, 25 years ago, I don't think there were even ten, 40 storey residential towers in all of Canada and only a small fraction of all the 30 storey towers completed today. Height records for residential have been broken over and over all over the nation since the turn of the century. It's impact on skylines is that they aren't held up as economic prowess anymore but, as diminishing home ownership affordability,