New engineering & architectural masterpiece on 6.6 acres of complete privacy for those seeking absolute discretion. Architecture by award-winning Swatt Miers & top-end construction. 360-degee views of the Bay, East Bay hills, Windy Hill, and western mountains. Over 11,000sf of total space with 3 levels with elevator and seamless indoor/outdoor transitions with disappearing glass walls. 6 bedrooms, 2 lounges, office, family room/kitchen, recreation room with bar, theatre & wine cellar, plus detached ADU also ideal for fitness center or remote office. Detached 4-car garage and significant off-street parking. A world-class destination for luxurious living as well as corporate and/or professional events with vast level grounds, infinity edge pool, and amazing rooftop deck with breathtaking vistas. Midway between San Francisco and Silicon Valley. Minutes to shops, restaurants and Hwy 280. Excellent Portola Valley schools.