21 Elm Court is a 2 story, 2 bay, rectangular plan, brick and wood frame, Dutch Colonial Revival, residential building. The c. 1920, side gambrel-roofed house is articulated by a full width shed dormer, pent roof at the first floor with a bracket-supported, pedimented portico hood, 8/1 windows on the second floor and tri-partite windows on the first floor, brick first floor cladding and wood shingle on the upper floors, overhanging eaves, and a set back, one story, side porch.