Stunning Updated Home in Prestigious Diamond Bar. This beautifully upgraded home is located in the highly desirable city of Diamond Bar and offers modern renovations throughout. Recent improvements include new repiping, fresh interior paint, and waterproof laminate wood flooring on the main floor. Additional upgrades in 2022 feature a newer central air conditioning and heating system, dual-pane windows and sliding doors, and fully paid-off solar panels. The kitchen and all bathrooms were tastefully remodeled in 2009. This spacious home offers 4 bedrooms and 3 bathrooms, plus a bonus room which can be used as a 5th bedroom. The elegant entry welcomes you with marble flooring and a crystal chandelier. The bright living room opens to a formal dining room with soaring high ceilings. A generous family room with a cozy fireplace flows seamlessly into the gourmet kitchen, which features custom cabinetry, a built-in refrigerator, granite countertops, stainless steel appliances, and a Wolf stove. On the main floor, there is one bedroom and one upgraded bathroom, ideal for guests or multi-generational living. Upstairs, the luxurious primary suite includes two closets and a beautifully appointed bathroom with dual vanities and a walk-in shower. The second floor also includes three additional bedrooms and a fully upgraded bathroom. The home offers a comfortable and functional layout, along with a private backyard perfect for relaxation and entertaining. Enjoy the open-concept outdoor space complete with a patio and a variety of fruit trees. Additional highlights include professional landscaping, three attached garages, and recessed lighting. This is the original owner's home, offered for the first time on the market. Conveniently located near top-rated Pantera elementary schools.