Dan,
From your description of the location (not so clear on the map though) it may be a three or four story small office complex that has a warehouse directly behind it, with the entrance to the warehouse on the side street, and the office building parking lots both in front on Finch, and also off of the side street to the east. Behind the warehouse is a large field, and above that field is the Bay warehouse complex.
The small warehouse (if I'm correct) used to be the old Kellogg's warehouse, and I think it was leased several times after Kelloggs left the site. Several new small warehouse sites were built on the side street directly across from that one.
I used to work in the area, and going by your description, I'm guessing that's where you mean.
bj-21.