Appeal of 57th Street Mews, Inc., pursuant to 11 DCMR Subtitle Y § 302, from the decision made on February 28, 2017 by the Zoning Administrator, Department of Consumer and Regulatory Affairs, to revoke building permit B1307755, to permit the construction of an addition to a one-family dwelling and conversion to an 18-unit apartment building in the R-4 (formerly C-2-A) Zone at premises 1511 A Street, N.E. (Square 1070, Lot 0094).