Offered for sale for the first time by only its second owner, 41 Niamogue Lane is a rare waterfront estate situated on 4 premium acres within one of Quogue's most established enclaves. With mid-century origins, this stunning home has been thoughtfully expanded over time and now encompasses approximately 7,500 square feet with six bedrooms, seven full baths and two half baths. What makes this property so compelling is not simply its size, but the combination of waterfront acreage, privacy, established grounds and spectacular water views, attributes increasingly difficult to find in the Hamptons. The true value begins with the land, as homes can be renovated and redesigned, but waterfront acreage of this scale, in this estate location cannot be recreated. The exquisite architecture presents a distinctive blend of classic Hamptons design with mid-century influences and exceptional interior appointments. A traditional gambrel roof defines the exterior, while graceful arched openings, richly textured brick floors and a curved interior stucco staircase with brick treads bring warmth and architectural character to the interior. Substantial hand carved paneled wood doors and a grand living room with coffered ceilings further reflect the home's craftsmanship and individuality. Wood-burning fireplaces in the great room and living room create inviting spaces for gathering throughout the seasons. Expansive walls of custom windows and doors fill the rooms with natural light while maintaining a strong connection to the surrounding landscape and water. Designed to accommodate family and guests with ease, the home features both a first-floor primary ensuite and a second-floor primary ensuite, offering flexibility for multigenerational living. Every additional bedroom is also ensuite, providing privacy and comfort throughout. Summer has its own destination here, with a saltwater gunite pool and separate poolhouse with a half bath, surrounded by sweeping lawns, ready for morning swims, afternoon lounging and evenings spent entertaining under the open sky. Private access to the serene waterfront invites kayaking, paddleboarding, fishing and birdwatching, offering a peaceful way to experience the natural beauty of the property. For those drawn to sailing, the Shinnecock Yacht Club is also close by. Additional features include a cedar-shingle roof installed in 2023, newer windows, whole-house central air installed in 2024, a new irrigation system, generator and Level 2 EV charger. Exceptionally private and secluded, yet conveniently located close to Quogue Village and ocean beaches. With its scale, waterfront setting and stellar accommodations, 41 Niamogue Lane can serve as a year-round residence, seasonal retreat or multigenerational compound.