Actually we already see apartments going up at the edges of some cities, because of a combo of these factors making it tough to do otherwise. However, I also found that in Winnipeg, condo owners pay the same property taxes as a detached homeowner in a brand new cul-de-sac. For a $330k cad condo (probably not going to get much higher in price later) you pay $4k in annual property taxes on top of your condo fees and mortgage. That's an entire month of food if you ate out every single day. Meanwhile in Vancouver, the same type of place literally costs $1m in a less desirable area, but you pay only ~2k in property taxes, which contributes to fund 58% of the city's operating budget, and the city is able to improve over time.

Same zoning problems though