This post is just a place marker of sorts that may or may not be followed up.
Within ANC Bradley A. Thomas' SMD report was something about the Vacant/Blighted Properties Task Force listing three properties that were vacant. One was 1530 3rd St NW, which has been written about here. The other two were 227 Bates St NW and 45 Bates Street NW. From the exterior 227 Bates doesn't look very vacant.