Welcome to a once-in-a-lifetime opportunity to own an exceptional equestrian estate sprawling over approximately 185 unrestricted acres in the heart of Millbrook hunt country. Originally built in 1865, this property has been meticulously expanded with a lavish addition spanning over 6000 sq ft, seamlessly blending antique charm with modern opulence. Enjoy miles of fenced pastures, riding trails, ponds, and panoramic views of the Catskill Mountains just minutes from the Village of Millbrook. Formerly owned by Margaret Carnegie, only child of Andrew Carnegie, this estate offers a piece of history and unmatched luxury. The main residence features a paneled library with fireplace, formal dining room with fireplace and a very generous living room with yet another fireplace and very high ceilings. Two staircases leading to separate wings and an elevator service both the primary suite and the finished basement. Designed by French architect, Atelier Choiseul, the exceptional stable boasts stables, paddocks, a tack room, lounge, and staff apartments. A hunter trial course adds to the recreational opportunities. Just minutes from Metro-North station, and a 90-minute commute to Manhattan, indulge in country living with access to prestigious activities like the Millbrook Hunt and Mashomack Polo. This rare offering provides unparalleled privacy, nestled in the serene countryside, yet with convenient access to urban amenities. Embrace luxury in the Hudson Valley's most coveted location. Additional Information: Amenities:Dressing Area,Guest Quarters,Marble Bath,Steam Shower,Storage,HeatingFuel:Oil Above Ground,ParkingFeatures:4+ Car Detached,