The John Jay Homestead is located in a rural setting east of the village of Katonah, on the north side of Jay Street (New York State Route 22). It is a2+1⁄2-story gambrel-roofed brick building, with single-story gable-roofed wings to either side. The main facade is five bays wide, with sash windows arranged symmetrically around the centered entrance. The center bay is slightly wider than the others, and the entrance is topped by a four-light transom window. A shed-roof porch shelters the entire span of the first floor, wrapping around in open sections to secondary entrances in the side wings.[3]
The home was constructed in two major phases, on 600 acres (240 ha) of land that was part of a larger 5,200-acre (2,100 ha) parcel that his maternal grandfatherJacobus Van Cortlandtpurchased fromChief Katonaharound 1700.[4]John Jay made arrangements in February 1787 with brickmakers and carpenters for the first phase of construction, which was completed in 1790. The second phase, executed in 1800–01, included the extension of the main block to five bays and the addition of the wings (one replacing the first kitchen wing). Jay, whose long and illustrious career included theContinental Congress, drafting of New York's first state constitution,Governor of New York, and Chief Justice of both New York's Supreme Court and theUnited States Supreme Court, spent his retirement years on this property.[3]
The house remained in the Jay family until 1959, when it was given toWestchester County, which turned it over to the state. The state undertook the reversal of some alterations made after Jay's ownership, and opened it as a historic site.[3]In 1977, the non-profit Friends of John Jay Homestead was founded to increase public awareness of the site. It raises funds and provides volunteer assistance for the Homestead's preservation, restoration and interpretation.