At the edge of Belvedere Island on a near-private cul-de-sac, 4 Blanding Lane, known as the Belvedere Sanctuary is a rare estate set within one of the Bay's most exclusive enclaves, often referred to as Billionaires Point.'' This private two-residence compound offers sweeping panoramic views from the Golden Gate Bridge to the Bay Bridge, with ever-changing light and scenery. Blending timeless craftsmanship with modern design, the home features teak-framed windows, walnut floors, soaring ceilings, and seamless indoor-outdoor living with an infinity-edge pool, terraces, and manicured gardens. The primary suite is a true retreat with stunning bridge views, while a separate guest house with its own garage adds flexibility and privacy. Just moments from the charm of Tiburon and world-class sailing at the San Francisco Yacht Club and Corinthian Yacht Club, this is a rare opportunity to experience one of the most coveted lifestyles on the San Francisco Bay. 4 Blanding Lane is more than a home, it is a rare and irreplaceable offering. A place where privacy, presence, and perspective converge and where the beauty of the Bay becomes part of everyday life.