Here are a few of the early proposals for Place Bell.
This one I find has a lot of similarities to the DND HQ;
This one was re-adopted (according to the site) for l'Esplanade;
This one is very similar to what we ended up with but with a flat roof with overhang;
And what we ended up with, possibly my favourite of the bunch (picture before "light restrictions";
Midcentury Modernist says that the parking garage next door (part of the Place Bell complex) use to have the same cladding, but due to salt damage, they rebuilt it with the more durable metal strips.
And a bit on Bill Teron; his first office building was the following on what is today the Place Bell site (demolished 5 years after construction for Place Bell);
His second building is the one on the corner of O'Connor and Laurier, across for the old EDC (Plaza 234) and next to the new EDC. That building was given a new skin at some point, but the original is still visible on the back (but largely obscured by the new EDC). I figure there used to be windows between the ridges.
Not on Urbsite, but interesting fact, but Teron also built the former Delta complex across the street from his rival's Place de Ville. The complex is now owned by Morguard.
Urbsite link;
http://urbsite.blogspot.ca/2013/09/p...et-blocks.html