Discover refined living in the prestigious Hidden Hollow subdivision with this newly completed custom home at 3689 Riverstone Drive in Mapleton. Set on a generous 0.42-acre lot with a private backyard that opens directly to the mountains, this nearly 5,100 square foot residence offers stunning views, high-end finishes, and exceptional privacy. The home features 6 bedrooms and 4 bathrooms, including a fully finished basement with a mother-in-law ADU offering 2 bedrooms, a full kitchen, laundry, bathroom, and private garage entrance-perfect for guests, extended family, or rental income. The main level showcases an open-concept layout with soaring 10-foot ceilings and abundant natural light. A gourmet kitchen with double-stacked cabinets and a large center island flows into the dining and great room areas and extends to a covered patio with peaceful mountain views. The primary suite features vaulted ceilings, a spa-like bathroom, and a spacious walk-in closet. Downstairs, the rec room is pre-wired for Dolby Atmos 7.1.4 surround sound and designed for a projector or home theater setup. The oversized 3-car garage spans 1,251 square feet and includes a 30-foot deep third bay with an extra-tall door, high-lift rails, jackshaft openers, full insulation, and a pre-stub for a gas heater. In addition to its custom design and unbeatable mountain setting, this home benefits from permanent view protection-there will only ever be one adjacent neighbor to the north, the backyard faces the mountains, there's a dedicated easement across the street to preserve sightlines, and a detention basin easement to the south ensures lasting privacy and space. With its thoughtful floorplan, premium finishes, and prime lot placement, this move-in-ready home is a rare Mapleton find-schedule your private showing today.