Welcome to this one-of-a-kind Alta Loma Single Story Estate! A rare opportunity to own a custom-built home nestled on just under 1 acre in one of Rancho Cucamonga's most sought-after neighborhoods. From the moment you arrive, the signature circular driveway sets the tone. Spanning 2,778 sq. ft, this 3 Bedroom, 3 Bathroom residence was thoughtfully designed and built to stand apart. Step outside and discover resort-style amenities right in your own backyard. Serve up a match on your private tennis or pickleball court, then enjoy the spa or sit around the firepit and enjoy the sunset. If a large garage and workshop is what you are looking for come and see the oversized 4 car garage and workshop- a dream space for car enthusiasts, hobbyists, or anyone who needs room to create and build. Energy conscious buyers will appreciate the fully paid-off solar system. All of this is set against the stunning backdrop of the San Gabriel Mountains, in a neighborhood known for its large lots, equestrian-friendly streets, and top-rated Alta Loma Schools. Close to the Colonies shopping and restaurant center, beautiful parks, trails, and commuter friendly. Don't miss out! This is the lot Alta Loma doesn't make anymore!