Marina Estates Last Home Left! Marina, Boat Launch and Waterfront Dining Down the Block - Water, Water Everywhere! New and completely finished with CO in hand for house and pool, and furnished in Eastport's most valuable and magnificent enclave - within Southampton Township - and right near Southampton Township's Seatuck Cove Bay. Move-in ready, with over 3,500 sq. ft. of impeccably finished living space spanning three levels, the home features four bedrooms and three and a half baths, including two luxurious bedroom suites—one on each floor—providing flexibility for guests or multi-generational living. Designer finishes abound, from the wide-plank white oak floors and custom cabinetry to the Italian tile bathrooms and handcrafted built-ins. The kitchen dazzles with a 2-inch mitered Silestone island, creating a sophisticated setting for entertaining and relaxation. A synergistic and expandable Smart Hub easily and remotely controls alarm, doorbell camera, and temperature. Embrace the Hamptons lifestyle with unparalleled elegance, convenience, and water access. This home would cost approximately $2.1M to rebuild today due to recent increased tariffs on imported construction materials. This presents a rare opportunity to purchase below current replacement cost - an exceptional value and investment for the future owner. Amazingly, you can access right down the block of South Bay Avenue - a public boat and kayak launch, full-scale marina, and waterfront restaurant - a veritable boater and water lover's dream! This brand-new, fully furnished residence is part of an ultra-luxury 4-home cul-de-sac development which backs up to a serene 200,000 sq. ft. nature preserve. With its prime location on the western edge of Southampton Township, residents enjoy quick access to all Southampton beaches and parks, as well as the ease of a significantly shortened commute from New York City.