Pursuant to 11 DCMR Subtitle Y § 302, from the decision made on February 6, 2017 by the Zoning Administrator, Department of Consumer and Regulatory Affairs, to issue building permit B1613608, to permit the construction of a third-floor addition and rear three-story addition to convert an existing one-family dwelling into a flat in the RF-1 District at premises 429 20th Street, N.E. (Square 4550, Lot 89).