Welcome to Hacienda del Nandina—a breathtaking single-story Mediterranean estate perched on nearly an acre with unparalleled upgrades and panoramic views stretching across the valley, mountains, and city lights from Riverside to Ontario. Formerly a KB model home, this meticulously customized property offers a rare blend of refined luxury, entertainer’s amenities, and multi-generational living. Step inside the 4,829 sq ft of total living space and you’re greeted by 3 spacious bedrooms plus a 4th bedroom/office (with independent split HVAC), 3 bathrooms, 3 fireplaces, and a show-stopping chef’s kitchen featuring a 5’ x 10’ island, 48” professional KitchenAid appliances, dual ovens and dishwashers, a 60” built-in fridge, Miele coffee station, nugget ice maker, wine & beverage fridge, and a built-in wine & whiskey cellar. The oversized master suite boasts its own panoramic window, spa-like bath, and large walk-in closet. Outdoors, enjoy 1,080 sq ft of covered patios, a 1,340 sq ft pool with Baja shelf, 12-person spa, outdoor entertainment wall, and full outdoor kitchen equipped with Lynx grill, pot cookers, warming drawer, dual beverage fridges, and 165 sq ft of granite countertops. An outdoor amphitheater with oversized fireplace and speaker-ready palms elevating the backyard to resort status. The 1-bed/1-bath detached casita (1,069 sq ft) includes a full kitchen, large living area, laundry, and private covered patio—ideal for guests, in-laws, or independent living. Car enthusiasts, creatives, or business owners will love the 2,600 sq ft finished barn/garage featuring 220V power, commercial glass doors, oversized fan, insulation, and high-speed internet. Plus, a she-shed and storage shed (each 240 sq ft) provide climate-controlled bonus spaces. The grounds are equally impressive with 600+ mature plants, ficus, olive and fruit trees, 3,900 sq ft of synthetic turf, RV parking, 8,000 sq ft low-flow irrigation, over 7,500 sq ft of 6” concrete drive, and whole-property high-speed internet. Owned solar, dual HVAC & water heaters, recessed lighting, Fort Knox safe, and every thoughtful upgrade make this an entertainer’s dream and a forever home.