Nestled in the desirable hills of Diamond Bar and ideally located within the highly acclaimed Walnut Valley Unified School District, this beautifully upgraded residence offers an exceptional blend of space, privacy, and refined design. Situated on an 8,016 sqft lot, inside 3,300 sqft, the home enjoys a serene hillside setting with a sense of privacy and natural surroundings. Featuring 6 bedrooms and 5 bathrooms, the layout includes three en-suite bedrooms with two generously sized primary suites and one junior suite, providing excellent flexibility for multi-generational living or extended family needs. The main level features a fully permitted en-suite bedroom, along with an additional separate guest bathroom, offering both comfort and convenience for residents and visitors alike. Upon entry, a grand foyer with soaring ceilings and an elegant curved staircase creates an immediate impression of scale and architectural character. The home showcases thoughtfully designed interior upgrades, including a tastefully remodeled kitchen and cohesive design-driven finishes throughout, offering a modern yet timeless living environment. Bright, airy, and well-proportioned living spaces are complemented by a three-car garage and a versatile floor plan that adapts to a variety of lifestyles. Enjoy the best of both privacy and convenience, with easy access to H Mart, major highways, restaurants, and highly rated schools, all just minutes away. No HOA and low property tax further enhance the overall value and long-term affordability of this exceptional property. This property presents a rare opportunity to own a spacious, design-oriented home in one of Diamond Bar's most sought-after hillside communities.