A rare opportunity in Poway featuring a detached ADU, resort style pool and spa, four car garage, owned solar with battery backup, and a private backyard retreat designed for entertaining. Welcome to 16883 St Andrews Drive, a beautifully maintained estate where space, versatility, and indoor outdoor living come together in one of Poways most peaceful and established neighborhoods. Inside, the home opens to a dramatic two story living room where soaring ceilings and a wall of windows flood the space with natural light and create an immediate sense of scale and warmth around the fireplace. The layout flows effortlessly through multiple living and gathering areas into a bright kitchen with quartz countertops, stainless appliances, and a sunlit breakfast nook overlooking the backyard. One of the most valuable features of the property is the detached ADU complete with its own kitchen, living area, bedroom, bathroom, and private laundry, offering exceptional flexibility for extended family, guests, multigenerational living, a home office, or potential rental income. The spacious primary suite offers a private retreat with its own fireplace, sitting area, spa inspired bathroom with freestanding soaking tub and glass shower, and a generous walk in closet. Upstairs bedrooms and flexible living spaces continue the homes open feel while a balcony overlooks the lush backyard below. Outside, the property transforms into a true Southern California escape with a pool and spa, covered patio, gazebo lounge area, and multiple spaces designed for relaxing afternoons or hosting gatherings. The yard also features a thoughtfully planted collection of fruit trees and garden plantings including loquat, lime, black cherry, dragon fruit, fig, orange, grapes, apricot, apple, avocado, mandarin, guava, pomegranate, mint, rosemary, garlic and green onion, creating a unique garden setting that will continue to mature over time. Additional improvements include remodeled bathrooms, quartz kitchen upgrades, engineered hardwood flooring, recessed LED lighting, upgraded AC, a 29 panel owned solar system with battery backup, and a professionally finished four car garage with epoxy floors and built in storage. Located just minutes from parks, hiking trails, golf, and top rated Poway schools, this property offers a rare combination of space, flexibility, and lifestyle in one of North Countys most desirable communities.