Bank Of Nova Scotia building was originally planned to be built prior to the great recession, was put on hold for a decade, finally started construction IIRC just before the war and was put on hold again until 1949 due to material shortages. So you basically get a 1929 design not opening until 1951. I believe when it was revived in the 40's the design was updated and refreshed a bit though.
Toronto has plenty of pre-1967 modernist buildings, but they are mostly smaller buildings. TD Centre was the first large office block, and by large I mean it was 3x the size of anything else in the city at the time. The reason the Scotia Bank building is more of an art-deco style is because it's design is a holdover from before the war.
The City Park apartments, completed in 1955, were the first of what would become thousands of tower in the park, modernist apartment blocks, for example:
http://spacing.ca/toronto/2017/08/26...mplex-toronto/