Application of James Anderson, 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, and the rear yard requirements of Subtitle E § 306.1, to construct a two-story, rear addition and to convert an existing attached principal dwelling into a two-unit flat in the RF-1 Zone at premises 318 Seaton Place, N.E. (Square 3567, Lot 42).