Pursuant to 11 DCMR § 3104.1, for a special exception to rebuild, renovate and make additions to an existing vacant building for one-family occupancy under section 223, not meeting the lot area requirements under section 401, lot occupancy requirements under section 403, open court requirements under section 406 and nonconforming structure requirements under subsection 2001.3, in the R-4 District at premises 1400 Montello Avenue, N.E. (Square 4059, Lot 29).