Tucked away on a serene cul-de-sac in the prestigious Huntington Library estate area of San Marino, this exceptional residence offers a rare combination of privacy, scale, and timeless elegance. Bordering the world-renowned Huntington Library, Art Museum, and Botanical Gardens and neighboring the historic Patton Estate, the property enjoys an extraordinary setting surrounded by some of the city's most iconic estates. Spanning approximately 6,123 square feet on an expansive 0.68-acre lot, this grand five-bedroom, four-and-one-half-bathroom home showcases an excellent floor plan designed for both sophisticated entertaining and comfortable everyday living. A dramatic grand staircase, soaring ceilings, elegant French doors, and newer hardwood floors create an immediate sense of refinement, while abundant natural light enhances the home's gracious interiors. Thoughtfully updated throughout, the residence features a newer roof, multi-zone HVAC system, and three fireplaces located in the living room, family room, and luxurious primary suite. Designed for memorable entertaining, the home also offers an impressive built-in two-sided sunken wet bar that seamlessly serves multiple gathering spaces. The updated gourmet kitchen is appointed with top-of-the-line appliances and is designed to open effortlessly to the family room, creating an inviting central gathering space. Additional kitchen features include a breakfast area and breakfast bar, ideal for both casual dining and entertaining. The expansive primary suite serves as a luxurious private retreat, complete with its own fireplace, two walk-in closets, a spacious spa-like bath, and a private deck overlooking the breathtaking grounds of The Huntington Gardens. Additional highlights include a grand entry, library, spacious guest quarters, and a versatile 621-square-foot third-floor bonus space ideal for a gym, studio, playroom, or additional office. The resort-inspired backyard features a sparkling pool, lush landscaping, picturesque views, and exceptional privacy, creating a true sanctuary setting. A 3-car garage and close proximity to beloved Lacy Park further enhance this remarkable offering. An extraordinary opportunity to own a distinguished estate in one of Southern California's most coveted communities.