78 Round Pond Ln, Sag Harbor, NY 11963

This striking modern residence blends clean architecture with thoughtful design, offering 4 bedrooms and 4.5 bathrooms across an open, light-filled floor plan. Walls of glass, soaring ceilings, and refined finishes create a seamless sense of flow, while a double-height living room and kitchen form the heart of the home, designed for both entertaining and everyday living—all surrounded by the approximately 1,000-acre Long Pond Greenbelt Habitat.The layout balances comfort and flexibility. One of the four bedrooms is a first-floor ensuite, providing a private retreat for guests or convenient single-level living. Upstairs, the additional bedrooms are thoughtfully positioned for privacy, including a spacious primary with a spa-like bathroom, a wall of windows that fill the space with natural light, and a private deck—ideal for morning coffee or unwinding in the afternoon sun. The second-floor hall overlooks the double-height living area below, further enhancing the sense of openness and light.Interior amenities include a private screening room, home gym, 4-zone HVAC system, integrated home technology, a Belgium wood-burning fireplace in the living room with the capability to heat the entire house, and a triple water filtration feature—all combining modern luxury with practical ease.The design emphasizes a natural connection to the outdoors, with walls of glass opening to a meticulously landscaped backyard conceived as a private resort. A saltwater gunite pool with waterfall spa anchors the grounds, where the gentle sound of cascading water enhances the Zen-like calm of this special home. An outdoor shower, infrared sauna, and a pool house with an indoor bar and prep area expand the living experience outside. Evenings can be spent around the custom copper gas fire pit, while the irrigated vegetable garden adds a touch of sustainability and charm.All of this is just minutes from the restaurants, boutiques, and waterfront of downtown Sag Harbor.