1737 Gainsborough Road Back on Market! No fault of the sellers. Price reduced! Amazing view home in the prestigious Walnut Creek enclave of San Dimas. This rare private estate offers approx. 3, 239 sq. ft. of living space on a 38, 692 sq. ft. lot plus an additional 66, 353 sq. ft. parcel, totaling over 107, 000 sq. ft. of land. The property features a breathtaking backyard overlooking a 2.46-acre scenic valley with walking trails, creating a peaceful, park-like retreat. The home includes 4 bedrooms with a main-level suite, a guest powder room, and a spacious bonus room ideal for an office or media room. Interior highlights include a sweeping staircase, custom oak woodwork, high ceilings, wide hallways, wet bar, and two fireplaces. The primary suite offers a spa-style bath with soaking tub, separate shower, walk-in closet, and balcony with hillside views. Outdoor features include mature fruit trees, landscaped grounds, multiple entertaining areas, patio, RV parking, and a 3-car garage with workbench. Conveniently located near schools, shopping, and easy access to the 10, 57, and 210 freeways. No HOA, exceptional privacy, and strong upside potential—ideal for a signature estate or investment opportunity.