Arden House is one of two Harriman properties which made up Columbia University’s Arden Conference Center. In April 2007, the Open Space Conservancy (OSC) bought Arden House and its surrounding 450 acres from the University. Located in the town of Woodbury, New York, the house was built on Mount Orama in 1909 by E.H. Harriman.
The house commands extensive views of the Hudson Highlands, including much of the 25,000 acres of land OSI has conserved there. The protection of the Arden House property brings the total of preserved lands that were once owned by the Harriman family in New York State to nearly 70,000 acres, including Bear Mountain, Harriman and Sterling Forest State Parks.
This property has multiple unique land features, including a lake and rock outcroppings visible for miles around. Harriman was a railroad tycoon in the 19th and early 20th centuries, but also a great lover of nature as well who, along with his descendants, has sold or donated nearly 70,000 acres of protected land in New York State.