Dunes Lane

This extraordinary 8,000-square-foot oceanfront mansion in Amagansett is a true showpiece of design and setting, custom-built by acclaimed architect Bill Hayes and nestled on a secluded private cul-de-sac with direct beach access. Spanning three sun-drenched levels, the home features seven expansive bedrooms, nine marble-clad bathrooms, and soaring 11-foot ceilings throughout. Floor-to-ceiling windows frame panoramic Atlantic views, while multiple living areas and two full kitchens provide effortless flow for both relaxation and entertaining. From the sauna-equipped master suite to the oceanfront heated pool and 4,000-square-foot deck, every space is designed to elevate the experience of coastal living. Outdoors, a world of resort-style amenities awaits: an all-weather tennis court, two outdoor showers, wraparound decks on all levels, dual grilling stations, and even a kayak and private play area for family fun. With a media room, home gym, EV charging garage, and smart features throughout, the home pairs modern comfort with timeless Hamptons elegance. Just minutes from Montauk, East Hampton, and local beaches, this architectural masterpiece is the ultimate private retreat for an unforgettable seaside escape.