This unit is located at 2201 Massachusetts Ave, NW:
The listing says:
“OPEN SUN 1-4. Massive 1bd in Historic Castle. 825sf, 14ft Ceilings, HWF, Tons of Windows, Amazing Views, Separate Dining Room,Wood Burning FP, Classic 8in Moldings. Kitchen: SS Appliances & Lots of Storage. Bathroom: Double Vanity, Soaking Tub, Porcelain Tile, Dual Entry. 2 Blocks to Dupont Metro. Best Location in the City.”
You can see more photos here.
This 1 bed/1 bath is going for $524,900 ($535 monthly fee.)