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Arden House

Arden House is the first and premier conference center property in the United States, an elegant 100,000+

square foot mansion set atop the 1,300-foot Mount Orama in Harriman, New York. Located on a 50-acre plateau in a protected 450-acre site, Arden House is conveniently located within 40 miles of midtown Manhattan. This unique cultural, historic and environmental asset is surrounded by the 110,000-acre Palisades Interstate Park with breathtaking views, rolling forests and a private 125-acre lake.

Built by railroad mogul Edward H. Harriman in 1909, solely with American products and American workmen, Arden House was designed by famed architects Car-rère and Hastings, architects of the New York Public Library’s Central Branch and the Frick Collection on Fifth Avenue. The Harriman Family donated the property to Columbia University in 1950 for the American Assembly, a prestigious domestic and foreign policy study group. Columbia subsequently used Arden House for its executive programs of its Graduate School of Business and School of International and Public Affairs.

Arden House is now available for purchase. An ideal setting for a conference center, the property includes not only the original Harriman mansion and outbuildings, but also development opportunities for institutions of higher learning, foundations, think tanks and related users.

The Parlor

Mr. Harriman’s Study

Courtyard in Winter

Looking East Northern Exposure

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Arden HouseHarriman, New York

Conference Center

Cranberry Lake

Great Hall off Courtyard

Music Room

Sitting Room

Open Space Institute

The Open Space Institute (OSI) protects scenic, natural and historic landscapes to ensure public enjoyment, conserve habitats and sustain community character.

This is your personal invitation to inspect Arden House, America’s first conference center, now available for sale—it is one of America’s unique cultural, historical and environmental assets.

Please call us at (212) 716-3767 or email to robert.freedman@colliers.com or richard.warshauer@colliers.com to arrange an appointment.

No representation is made to the accuracy of the information furnished herein and same is submitted subject to errors, omissions, change of prices, rental or other conditions, prior sale, lease and/or withdrawal without notice. The Seller reserves the right to reject all or any offers without response for any reason whatsoever. The furnishing of this information shall not be deemed a hiring. This property is not offered with furniture, artworks or commissions to real estate brokers.

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Arden House is located 40 miles northwest of Manhattan.

This secluded mountaintop estate of 450 acres is topped by a 100,000 sf+ unique historic mansion, including a 125-acre private lake, surrounded by 110,000 acres of park and preservation lands.

Arden House is easily accessible by car (NY State Thruway, Exit 16), bus (Short Line), train (Metro North) and air (JFK, LaGuardia, Newark, Stewart and Westchester airport).

Harriman, NY 10926 • www.theardenhouse.com