At first glance, I thought this was a school being built! There is more of the house on the right I couldn't quite fit in the shot.
Montcalm mansion by
LUMIN8, on Flickr
8A Street in south Mount Royal has some impressive contemporary architecture.
Some other streets I really love in Mount Royal: Earl Grey Crescent, Hope St, & Champlain St.
8A Street SW by
LUMIN8, on Flickr