Application of Alexandra Veitch, as amended, pursuant to 11 DCMR Subtitle X, Chapter 9, for special exceptions under Subtitle E § 5201 from the lot occupancy requirements of Subtitle E § 304.1, the rear yard setback requirements of Subtitle E § 306.1, and the nonconforming structure requirements of Subtitle C § 202.2, to construct a rear deck addition to an existing, attached principal dwelling unit in the RF-1 Zone at premises 17 Rhode Island Avenue N.W. (Square 3112, Lot 88).