Prime Business Location Grosses $108,000 in Annual Income Ample Rear Parking and Storage Fifth Story Can Be Added To The Building. Commercial, Retail, and Residential Space in the Busy Columbia Heights Neighborhood. Integral upgrades: 4" waste line throughout, 2" water line coming into the building, upgraded underground conduit with 400 amp electrical coming in, heavy up electrical in all units done. Heavy up electrical in all units are done. Relatively new HVAC systems Just 2 Blocks From The Columbia Heights Metro Station and The D.C. US Shopping Mall.