16 Flagg Court 
ca. 1900, Ernest Flagg 
New York City Individual Landmark 

Located at the northwest edge of the estate, this large fieldstone water tower remains as one of its most distinctive outbuildings. It was originally taller, and had a conical roof with a windmill on top and a water wheel. Some brackets are still visible on the highest section. The roof was originally supported by posts located on the interior of the structure, which also held a narrow walkway. The top section has a series of round-arched windows, and is crowned by an indented brick parapet. This last modification was done during the 1950s. A secondary tower was built also around 1900 and used as a pump house. It was located on the center axis, approximately 160 feet northwest of the entry court gate. It was included in the 1983 boundaries expansion of the 1967 NYC Landmark designation.