Originally Posted by BIMBAM
Note that the Condos are being built in Canada's big cities, but smaller centres are continuing to sprawl with single family homes.
It depends on the city. Halifax was 63% multi-unit in 2010 according to the municipal website. The average for the past 10 years seems to be about 50/50. I would guess that there's a lot of variation between the different smaller cities in Canada.
I am only speculating but I think the cost difference is the most important, followed by differences in planning and then social and cultural issues. Houses and cars are amazingly cheap in many US cities. The US also has a lot of car-oriented infrastructure compared to Canada, and poorer transit on average.