 Internally, the Upper Montclair depot had one level and a basement, which involved a ticket office, waiting room on the south side of the depot and restrooms and the baggage room along the northern side.The original depot had an all-wood interior, but the floors were eventually replaced with concrete and the walls were painted.The historic original station house has been listed in the state and federal registers of historic places since 1984 and is part of the Operating Passenger Railroad Stations Thematic Resource.