Originally conceived as the Laguna Project, 9 Margarets is an AIA award-winning residence that brings together exceptional architecture, natural light, and seamless indoor-outdoor living across approximately 5,530± SF, including a substantial finished lower level. Offering four en-suite bedrooms, five full baths, and one half bath, the home is defined by soaring vaulted ceilings, walls of glass, curated natural materials, and a dramatic two-sided fireplace that blurs the distinction between indoors and out. At its center, a chef's kitchen with top-tier appliances anchors the living and dining spaces, while custom white oak millwork and refined finishes reflect the disciplined vision of architect James Merrell, developed in collaboration with Sean Murphy. Every bedroom suite opens directly to the surrounding landscape, reinforcing the effortless connection between the home and its setting. Outside, a 50' x 17' heated saltwater gunite pool is complemented by expansive entertaining terraces, multiple lounge and dining areas, a pool house with a full bath, an outdoor shower, and mature landscaping that creates both privacy and openness. Set on a quiet, tree-lined street moments from Shelter Island's beaches, marinas, and restaurants, 9 Margarets is an exceptional expression of contemporary architecture in one of the East End's most distinctive settings.