Looks like Jewel of D.C.'s West End - The Columbia Residences of D.C. (1 Bdrm/den - Brand n is no longer available on Rent.com which means this information is likely out of date.

Jewel of D.C.'s West End - The Columbia Residences of D.C. (1 Bdrm/den - Brand n

 2425 L Street NW (at Penn Avenue), WashingtonDC 20007