This majestic 5163 sq ft home sits atop a bluff in the prestigious Oak Tree Downs gated community of Chino Hills, and has an unrestricted, 360 degree view of the canyon, hills and city lights. This home was designed by the New York based Urbahn Architects, famous for their award-winning commercial and residential projects around the world. This home has four very spacious bedrooms, all with their own fireplaces and view, and 4.5 bathrooms. The kitchen has been upgraded with Brazilian granite counter tops, a large workspace island with eat-in breakfast bar, and top of the line stainless steel appliances. There are high ceilings in the kitchen that open up to the family room, which has a large natural stone fireplace and oversized French doors, allowing lots of natural light and peaceful views of the pool and canyon beyond. The library/office has floor-to-ceiling custom cabinetry/shelving and large windows on three sides of the room. There is also a downstairs exercise room with an attached sauna room and separate shower area. The lot size is 1.6 acres (69,696 sf) with a flat, usable yard area perfect for entertaining, a sport court, etc. Located within an award winning school district; both jr high & high school have "Distinguished School" designations.