Don't know if these have been posted before, but here is the built-area of Canada's 25-largest CMAs from 4 time periods: 1971, 1991, 2001 and 2011.
LINK
I'm not going to post all of them, but here are a few that jumped out at me:
1. Cities like Saint John and Thunder Bay that experienced "sprawl without growth". There was an 'explosion' of low density exurban development in the 1990s, but that tapered off considerably in the 2000s.
2. Montreal - era of outward development doesn't coincide with other Canadian cities. The 1990s saw anemic growth, but there was quite a bit of outward suburban development in the 2000s. Maybe the 2010s will see less suburban development but much more infill (which won't be shown).
3. Calgary: surprisingly compact, given that the CMA effectively doubled in population between 1991 and 2011:
