This waterfront estate is located at 66 Seafield Lane in Westhampton Beach, NY on a 10.37 acre lot with 1,000 feet of water frontage. The 24-room shingle style main residence was originally designed in 1903 for William C. Atwater, a coal baron, who retained architect Henry Bacon, best known for his design of the Lincoln Memorial in Washington DC. It boasts 16,000 square feet of living space with 9 bedrooms, 9 full and 2 half bathrooms, a 3-story staircase, living room, banquet-sized formal dining room, gourmet kitchen with breakfast area, 6 fireplaces, billiards room, sunroom, office, 3rd floor living room and more. The estate also offers a carriage house, cottage, formal gardens, rolling lawns, a Lord & Burnham greenhouse, Har-Tru tennis court, 56′ gunite swimming pool and a deepwater dock. It is listed at $24,750,000.