From what I can see for 4th St NW it includes 1709-1721 4th St NW. Thing is 1717 4th Street was infill, built sometime after 2009.
As you can see from the screen capture of Google’s Streetview time machine, there was an empty lot in 2009, surrounded by a wood fence. Up in the left hand corner is an image from 2016. showing the building that currently sits there. Whatever Wardman that used to be there is long gone