Welcome to 2497 Sierra Dr, a stunning residence nestled in the highly sought-after San Antonio Heights neighborhood of Upland. Located on a quiet cul-de-sac, this beautifully upgraded home offers 3 bedrooms, 3.5 bathrooms, and exceptional indoor-outdoor living on an expansive 30,000+ sq/ft lot. Step inside to a warm and inviting living room featuring hardwood floors, abundant natural light, and a cozy fireplace. The heart of the home is the remodeled chefs kitchen, complete with granite countertops, a spacious center island, stainless steel appliances, and a built-in refrigeratorperfect for entertaining and everyday living. The backyard is your private retreat, offering incredible space for relaxation and gatherings. Enjoy the sparkling pool, mature landscaping, and endless possibilities for outdoor fun. Adding tremendous value, this property includes a detached approx. 640 sq/ft ADU/guest house. Ideal for extended family, guests, or rental income, the unit features 1 bedroom, 1 bathroom, a comfortable family area, and a charming kitchenette. Additional highlights include a horseshoe driveway, a 2-car garage, and the peaceful ambiance of a cul-de-sac location. Dont miss this rare opportunity to own a spacious, upgraded home with a guest house in one of Uplands most desirable communities!