79 Flagg Court 
ca. 1900, Ernest Flagg 
New York City Individual Landmarks 

Originally a two-story structure, the stable is the largest outbuilding on the Flagg Estate. Located on the northern edge of the property, it faces the swimming pool and aligns with the central axis that shapes the group. It had entrances at both ends, which were framed by one-story buildings that marked driveways for secondary roads that led to north gateways. They have since been removed, as well as the continuation of Coventry Road, which paralleled the rear of Flagg's property and connected Todt Hill and West Entry Roads. In 1947, an attic story was added by St. Charles Seminary and the three original dormers were removed from the steeply-pitched gable roof. The roof lantern was maintained, and is flanked by two chimneys. It was included in the 1983 boundaries expansion of the 1967 NYC Landmark designation.