This is 894 through 900 St. Clair Avenue West, on the northeast corner at Alberta Avenue. The streetcar isn't heading east to the subway, but west: wrong destination sign. Here's the rendering, bigger:
Pic taken from the streetcar yesterday evening. Demolition is about to start I guess? There's also a public consultation planned for next week, March 2nd from 6.30pm to 8.30pm at the Oakwood Village Library (341 Oakwood).
Looks like this might be an alternate location for Shopper's Drug Mart if the Via Italia location didn't go through.
But again, proximity didn't prevent Shoppers Drug Mart from having two locations along Eglinton a few blocks from each other (one at Caledonia and another at Dufferin); I didn't even mention the ones downtown.