Stunning South Diamond Bar Home with Panoramic Views! Nestled in the serene hills of South Diamond Bar, this spacious 4-bedroom + bonus room & den, 3-bath residence offers 3,026 sq.ft. of bright, open living space on a 9,206 sq.ft. lot. A grand new double-door entry welcomes you to soaring ceilings, abundant natural light, and a striking custom staircase. Recent updates include fresh interior paint, new window coverings, and custom laminate wood flooring throughout. Expansive windows frame breathtaking mountain and city views, while the oversized primary suite features a sitting area, walk-in closet, and spa-inspired bath. A large upstairs bedroom extends to a balcony with sweeping vistas. The chefs kitchen, equipped with a new electric stove and oven, modern ceiling lighting, and a walk-in pantry, flows seamlessly into the family room with fireplace and built-ins. Sliding doors open to a covered patioperfect for entertaining. A main-level bonus room and a den with wet bar(currently used as a 5th bedroom) offer flexible space for guests, a home office, or media room. Additional highlights include a 3-car garage with extended driveway, beautifully landscaped grounds with mature trees and vibrant flowers, and a private backyard with new fencing and fabric shade cover. Ideally located near shopping, dining, and parks, this home is zoned for award-winning schoolsCastle Rock Elementary, South Pointe Middle, and Diamond Bar Highwith easy freeway access to Orange County, Los Angeles, and beyond.