via google maps
A liquor license placard for Proper 21 at 2031 K Street, NW says:
“A new C Restaurant serving American cuisine. Seating Capacity of 120, Total Occupancy Load of 240 and a Summer Garden with 60 Seats. The license will include an Entertainment Endorsement for the inside of the premises only.”
Check out their menu here.
1319 F Street, NW
Proper 21 opened on F Street back in 2016. Updates as they get closer to opening this spot.