Roy Square was one of the only interesting parts of that building. It was a laneway off of Bloor Street that had been converted into a patio. There were a couple of old buildings facing Yonge that were architecturally decent originally (from the Victorian era or the early 20th century) but they were not deemed to be heritage buildings and demolished for this development.
But also more interestingly enough, a small experiment in laneway reuse:
In this case, I think the tradeoffs are good enough, unlike the Mirvish-Gehry project which will replace much larger buildings and is highly, highly susceptible to the Cheapening effect.