NEW PRICE IMPROVEMENT! This is a rare opportunity to acquire the LARGEST LOT in the prestigious Kerrigan Ranch at an exceptional new value. Nestled at the end of a quiet, premier cul-de-sac on a sprawling 41,000 SQFT lot, this magnificent Mediterranean-style residence offers an unmatched level of seclusion. A long, private driveway leads to a 3-car garage, setting the stage for this grand and private estate. The backyard is a true sanctuary of peace and quiet, directly backing to the lush, rising hills of Chino Hills State Park. With the natural hillside as your backdrop and no rear neighbors, you will enjoy the ultimate in privacy and a seamless connection to nature. The outdoor space is a refined entertainer's dream, featuring a sparkling pool, spa, covered patio, and a built-in BBQ bar, all framed by the serene and rugged beauty of the adjacent state park. Inside, the expansive floor plan features 6 bedrooms and a dedicated executive office. The main level is thoughtfully designed with two guest bedrooms and full bathrooms, offering a perfect layout for multi-generational living or a long-term guest stay. The heart of the home is the Chef's Kitchen, boasting premium Thermador stainless steel appliances, a generous center island, and high-end cabinetry that opens effortlessly to the grand living and dining areas. The upstairs primary suite serves as a tranquil escape, complete with a spa-style bath and a spacious walk-in closet. Located within the top-rated Yorba Linda School District and just minutes from the dining and boutique shopping at the Yorba Linda Town Center. With this significant price adjustment, this estate represents a rare opportunity to own a massive, private piece of Kerrigan Ranch at a competitive price point.