The Mandeville House is located on Lower Station Road (Putnam County Route 12) in Garrison, New York, United States, just west of its intersection with NY 9D and 403. It is the oldest extant house in that community, dating to 1735. During the Revolutionary War, General Israel Putnam, after whom the county is named, was headquartered there for a while. A later occupant, architect Richard Upjohn, lived there for the last 25 years of his life. He expanded the house and redid its exterior in the Gothic Revival style that characterized much of his own work; most of these were removed in the 1920s by a later owner in order to restore the house to something close to its original appearance. In 1982 it was listed on the National Register of Historic Places. In the early 2000s it has been the subject of a dispute between the foundation which owns it and local history enthusiasts. The latter claim the head of the foundation is improperly using it as a residence and has not fully complied with Internal Revenue Service requirements that the house be open to the public as a museum. The head of the foundation denies any impropriety. Building The house is situated on a wooded lot of almost , just across from the similarly pre-Revolutionary buildings and structures of the Garrison Grist Mill Historic District on Highlands Golf Club and uphill from the Wilson House and the train station. It is an eight-bay, one-story structure with three shed-roofed dormer windows on and two chimneys piercing its gabled, shingled roof. Its main facade has six bays with the main entrance in the third from the east. It is surrounded with a shed hood, fluted pilasters and a stoop with two Dutch-style benches. There are several wings, including a cross-gabled rear and a garage connected to the main house by breezeway. The interior has some original paneling and trim, particular around the fireplaces in the main block. Most of the other trim is from the Colonial Revival restoration in the 1920s. History In 1697 William III granted the property that included the future Mandeville House to Adolphe Philipse, whose family owned much of today's Putnam County. He is the first European owner of record. Thirty-eight years later, in 1735, Jacob Mandeville, leased in the area of present-day Garrison, married and likely built the first part of the house. At that