This unit is located at 2900 K Street, Northwest. The listing says:
“Stunning 4800SF luxury condominium. One of only 7 residences, perched high above the hustle & bustle of Washington, DC. Walls of glass, huge wraparound terraces (2700SF), with sliding glass doors to the outside making entertaining possibilities phenomenal. Circular staircase to upper level. Pkg, 24 hour concierge.”
You can see more photos here.
This 4 bed/4 bath is going for $3,995,000 ($4,973 monthly fee.)