NEW PRICE! Fresh opportunity to own this exceptional end-of-cul-de-sac Diamond Bar home on over 1/3 acre (16,742 sqft) with a large, usable lot and ADU potential. Private setting with long driveway, impressive curb appeal, ample parking, a spacious side carport, and beautiful mature palm trees. The expansive lot offers endless possibilities for an ADU, pool, future expansion, or even estate-style living with the right vision. Located within the distinguished Walnut Valley Unified School District and walking distance to Maple Hill Elementary, Chaparral Middle School, newly remodeled Maple Hill Park, and just minutes from Diamond Bar High School. Lovingly maintained by the same owner for over 40 years, this bright and spacious home features high ceilings, a wide staircase, fresh interior paint, hardwood and tile flooring, recessed LED lighting, wood shutters, many upgraded dual-pane windows, central A/C & heat, a durable tile roof, ADT alarm system with 12 sensors, and Crimsafe stainless steel mesh security screens on selected doors and windows. Functional floor plan with formal living room and separate family room with fireplace opening to the kitchen, deal for everyday living and entertaining. Granite kitchen countertops, remodeled downstairs bathroom, separate laundry room, and attached garage with direct kitchen access. Spacious primary suite with large closet, dual sinks, and oversized shower. French doors and a sliding door create seamless indoor-outdoor living. The expansive backyard features a wide covered patio spanning the back of the home, numerous mature fruit trees with abundant yearly harvests, and exceptional space to relax. A rare opportunity to own a private, versatile property in one of Diamond Bar’s most desirable neighborhoods.