There are multiple in Toronto, all of which were not expensive post-WW2 since downtown was mostly considered 'for immigrants' and all the WASPs moved to the car-centric suburbs. Urban living became cool again in the post-1990s, and now Old Toronto is quite pricey.
Other "streetcar suburbs" are listed in:
* https://en.wikipedia.org/wiki/Streetcar_suburb
There are multiple in Toronto, all of which were not expensive post-WW2 since downtown was mostly considered 'for immigrants' and all the WASPs moved to the car-centric suburbs. Urban living became cool again in the post-1990s, and now Old Toronto is quite pricey.
* https://en.wikipedia.org/wiki/Old_Toronto