This custom estate home is located in the desirable gated Ruby Hill community, with Jack Nicklaus-designed gold course. Situated on a rare premium lot with beautiful views of Mount Diablo and spectacular sunsets year round. This home features upgraded marble and hardwood flooring, custom mill-work, extensive built-in cabinetry, and storage throughout. The main floor includes a gourmet kitchen and breakfast nook that overlooks the family room with an en-suite guest room, fully appointed game room and elegant living room with views of the California rolling hills. Second floor amenities include a bonus room, three bedrooms, and a master bedroom that leads out to a stunning observation deck. The professionally landscaped backyard and outdoor kitchen define California indoor-outdoor living. The backyard is has outstanding pergola, outdoor kitchen, bar and pizza oven. Additionally, it offers an observation deck with remarkable views of Mount Diablo.