1737 Gainsborough Road AMAZING VIEW ESTATE! Rare Private Compound Opportunity in Prestigious Walnut Creek, San Dimas. An exceptional opportunity to own a private view estate in the highly sought-after Walnut Creek enclave of San Dimas. This custom-built residence offers approximately 3, 239 sq. ft. on a 38, 692 sq. ft. lot, plus an additional 66, 353 sq. ft. (1.52-acre) parcel (scenic disclosure)—totaling over 107, 000 sq. ft. of land. Designed for both comfort and presence, the home features 4 spacious bedrooms, including a desirable main-level suite, a guest powder room, and a large bonus room ideal for a library, office, or media. Refined architectural details include a sweeping staircase, custom oak woodwork, stained-glass accents, soaring ceilings, wide hallways, and two fireplaces. The primary suite offers a spa-inspired retreat with a soaking tub, separate shower, and walk-in closet. The kitchen is equipped with built-in appliances, and a walk-in pantry, while an upstairs bonus room and wrap-around balcony capture sweeping hillside views. Outdoors, the expansive grounds feature mature fruit trees, multiple entertaining areas, a breezy patio, RV parking, and a 3-car garage with workbench and sink. Conveniently located near Walnut Creek Community Regional Park, local schools, and shopping, with easy access to the 10, 57, and 210 freeways, this property offers privacy, scale, no HOA, and exceptional upside potential. A truly rare offering—ideal for creating a signature estate or securing a premier investment in one of San Dimas’ most desirable neighborhoods.