Experience iconic waterfront living in this spectacular midcentury modern masterpiece on coveted Greacen Point in Mamaroneck. Set on a beautifully landscaped acre, this striking 4-bedroom, 4.1-bath residence offers 5,200+ sq ft of light-filled living space, designed to showcase sweeping panoramic water views from nearly every room. Large windows, clean lines, and open-concept spaces create an effortless connection to the outdoors, inviting nature in and allowing for seamless indoor/outdoor living. Expansive main living areas overlook terraces and patios, perfect for relaxing or entertaining against the stunning Long Island Sound backdrop. Outdoors, enjoy your private deep-water dock with water access to open Sound—an exceptional opportunity for boating and water recreation—along with lush gardens and wide lawns offering incredible privacy and tranquility. There is ample room to create a resort-like retreat tailored to your vision. A rare offering, this property combines midcentury elegance with spectacular waterfront in one of Westchester's most desirable penisula enclaves, only 35 minutes to Manhattan.