You know something...I've said it before, but I agree that we should take a deep breath before ascribing *too* much in the way of raw architectural merit and significance to 90 Harbour. Its value lies largely in its being existing building stock w/its original integrity still pretty much intact; and, it's terrific that the official *and* vernacular heritage barometer has expanded to encompass stuff like this (and, of course, with the "embodied energy" argument for retention acting as backup). But...let's not make a Penn Station-scaled mountain out of this molehill. Besides its comparatively recent date of construction (and maybe its being lost in the tangle of Gardiner ramps), there's a reason it was off the heritage radar for so long: it's bureaucratic stodge. It wouldn't be any less plausible a loss in more "heritage-enlightened" burgs than ours, sad to say; so losing it doesn't make us woe-is-us "backward", relatively speaking. Not that there isn't or couldn't be an argument "for it", esp. these days and w/the "embodied energy" argument added...so perhaps we're actually ahead of the game here, if this is to be a valid heritage issue. But watch how you do it, lest you bite off more than you can chew. (And remember that any existing "heritage status" here may be more of a sidebar consequence of the Union Station HCD.)
So, while declaring the loss "plausible", I'm not exactly advocating it. And all the more so given the asinine "I may not know Heritage but I know what I like" pro-development assessments of bruvyman, Automation Gallery, Big Daddy, etc. (And curiously enough, despite what Big Daddy says, I think *90* Harbour could be more easily absorbed into new development than *80* Harbour, at least from the POV of raw, functional, adaptable building stock.)