First time on the market, this exceptional custom-built Altos de Monterey residence has been lovingly maintained by its original owner. It offers 4 bedrooms, 3 bathrooms, and a versatile split-level floor plan on a cul-de-sac within the award-winning South Pasadena School District. Thoughtfully designed for both everyday living and entertaining, the home features a Sub-Zero refrigerator, premium Dacor appliances, a formal dining room, spacious living and family rooms, separate laundry, two fireplaces, seller-owned solar panels, upgraded copper water piping, and updated HVAC and water systems. Enjoy a private backyard oasis with a tranquil hillside waterfall, mature fruit trees, patio, and fully fenced grounds. Additional highlights include a 3-car garage, a stand-alone workshop, a hobby house, and abundant storage. A rare opportunity to own a meticulously cared-for home in one of South Pasadena's most desirable neighborhoods.