The two building outlines for 310 and 320 Tweedsmuir Avenue do not encompass all of the area of each property. There is some area that is not encompassed by either outline right now, where the north portion of that area is part of the 320 Tweedsmuir Avenue property and the south portion of that area is part of the 310 Tweedsmuir Avenue property. It is the green area to the west of the current building outlines. The delineation between the two properties is a line between the center of the circular road and the school property to the west, traveling between the two octagonal shapes visible on the satellite imagery. I lack the OSM editing skills needed to edit these ways, relations, etc.