285 Flagg Place 
1918-21, Ernest Flagg 
New York City Individual Landmarks 

Known also as House-on-the-Wall, this roadside stone cottage is complementary to Flagg's Bowcott, located on a similar location at the northeastern edge of the estate. Its main façade is comprised of a retaining wall built along the embankment, which incorporates setbacks from the building line on the lower sections to create a wider view of it from the road. Unlike Bowcott, Wallcot's walls don't replicate the road's curvature, maintaining a straight line. The structure does follow the terrain's slope upward, with a garage built on higher ground, which was later connected to the main section of the house. This gives the cottage the same appearance of being nestled into the terrain and its landscape. The lower section houses the living room, dining room, two large bedrooms and, originally, two smaller bedrooms for servants. The chauffeur's apartment was located at its northwestern end, with a projecting gabled portico highlighting the garage portion of the building. The main entrance is marked by a gabled hood-roof, supported by large ornamental brackets. Underneath, a flight of steps leads up through an open stone-walled round-arched vestibule. It was designated as a NYC Landmark in 1987.