I was going to mention Toronto's post-war sprawlburbs as a good example. Most of them are fully built out at this point, but still rapidly growing - and as a result almost all of them are creating new high-rise city centres, building LRT & BRT, redeveloping shopping malls, and building TODs around new high-frequency commuter rail stations.
Mississauga is the most notable - in the 60s/70 its city centre looked like this:
http://www.mississauga.ca/portal/res...%3Fstart%3D181
Now:
https://urbantoronto.ca/forum/thread...20755/page-103
And here's the longer term plan to continue filling it in, including upgrading the current BRT to LRT:
Also in Mississauga is the Lakeview Village redevelopment, which will add 8,000 residential units & 4,000 jobs:
Here's the long-term vision for Brampton. What's currently a sprawling industrial estate:
Is planned to transform into this over the next few decades:
https://www.cbc.ca/news/canada/toron...sion-1.4651520
Vaughan's city centre, which is in the process of developing a post-war industrial / big box wasteland around a new subway extension & BRT:
https://www.century21.ca/roger.towns...politan_Centre
Langstaff Gateway redevelopment in Markham, which would add 15,000 residential units (plus commercial) around a commuter rail station:
It's also art of the larger Richmond Hill/Langstaff Gateway Urban Growth Centre, congruent with Richmond Hill's new city centre:
http://mshplan.ca/Project%20Sheet_Ri...%20Gateway.pdf
Markham's other city centre:
Still suburban, but at least they'll be dense.
