Architectural Masterpiece with Iconic Views and Private Tennis Court. Situated atop Gilmartin Drive in Tiburon, this architectural gem offers high-design, privacy, and stunning views of the Golden Gate Bridge, Richmond Bridge, Richardson Bay, Mt. Tamalpais, and the SF Skyline. Designed by Sandy Walker, the home honors symmetry, moderne architecture, and maximizing the location's vistas. Available for the first time, this unique estate sits on 1.23 acres with colorful gardens. The 5,575+ sq. ft. home features 4 bedrooms, 4 full and 2 half baths, and premium craftsmanship with 10-11 ft. ceilings. A private 116 ft. by 56 ft. tennis court boasts panoramic horizon views. The home's grand double-height foyer features a curved staircase lit by a 16-ft. skylight. The upper level includes the main living spaces, a chef's kitchen, family room, formal rooms, and a primary suite with a spa-like bath and walk-in wardrobe. The lower level has 3 ensuite bedrooms, an office, exercise room, and 3-car garage. Other highlights include an elevator, wine room, 3 fireplaces, a spa patio, lush lawn, and smart home features including CCTV and zoned HVAC.