Sandcastle Estate

Water Mill, N.Y.
Listing Price: $49.5 million

This expansive three-story Bridgehampton South estate sits on 11.5 acres. The house has 31,000 sq. ft. of living space on three floors (all accessible by elevator) and a recreation pavilion. It features Bordeaux walnut floors with radiant heat, a double living room with two fireplaces, a fireplace in the dining room, a professional kitchen, butler's pantry, library, and 10-seat theater. Upstairs is a palatial 2,800-sq.-ft. master suite, eight bedrooms, and a sitting room.