Need a place to park your ponies? Pinebourne Farms in Muttontown is now on the market for $10 million.

The 22.13-acre equestrian estate includes a slate roof brick manor house built in 1932 by John Washington Bradley Delehanty, who built almost 60 homes on Long Island and who designed the interfaith chapel at the C.W. Post Campus in Brookville. The 16-room mansion has nine bedrooms, eight full and two half-baths, a formal dining room with a marble fireplace, two elevators, a library with original built-ins and a two story great room with a floor-to-ceiling stone fireplace.

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An addition to the home, along with indoor heated Gunite pool, was added to the property in 2000, says Anna Alyskewycz of Prudential Douglas Elliman Real Estate in Locust Valley.

The property also includes a three-bedroom guest house, a 12-stall horse barn, a cottage with two groom’s apartments, a training track, four paddocks and a hay barn. The property is divisible, and the manor house on 8.23 acres may be sold separately.

 

Permission Prudential Douglas Elliman Real Estate