Yeah, the one next door to the Masonic's the lowest of the low--and like LuCliff, the office/residential divide is lateral, not vertical. (And 920 Yonge to the north, that brick 70s thing, is also office-residential combo--vertical this time--and I think the residential was built some years after the offices.)
And over at Yonge & Eligible, there's a fair number--at least 3 on Holly Street alone. (They're best when they observe a classic-modernist tower-on-podium composition: office podium, apartment tower, no fuss.)