Elegant North Shore, waterfront, gilded-age family residence. Enjoy the water resort lifestyle! The notable Astor family commissioned, "The Mallows", by world-renowned architect Charles Platt. 4.1 acres of sprawling grounds and 300ft of waterfront in the prominent Head of the Harbor. Walking distance to the yacht club and the vibrant village of Stony Brook within the Three Village School District. Luxurious amenities; elevator, library, glass conservatory, 14 fireplaces and a separately accessed 3 bedroom guest cottage w/kitchen. Work, play, and entertain, with ample bonus rooms, guest suites, offices and even a 2nd kitchen! Endless outdoor recreation at the water's edge including a tennis court, heated salt-water pool, limestone patio, play castle, hot-tub, gazebo, vegetable gardens, chicken coop and 20+ car cobblestone circular driveway with separate service access. Extend the day with West-facing sunset waterfront views. Private and easily accessible to NYC and Hamptons. Harbor Road to Emmet Drive, driveway on left Features: - Washing Machine - Alarm