Privately gated and set on 1.62 acres in Walnut Creek's coveted Northgate neighborhood, this exceptional estate is distinguished by over 400 feet of street frontage and offers a rare combination of privacy, space, and resort-style living. The main residence features 4 bedrooms and 3 bathrooms, including a dramatic formal living room with soaring 22-foot ceilings and expansive windows that fill the space with natural light. Just beyond is the formal dining room with custom built-ins, while the kitchen, casual dining area, and family room seamlessly open to the surrounding patios and outdoor entertaining spaces. The grounds are designed for both recreation and relaxation, featuring a pool, pickleball court, and multiple landscaped patios surrounded by picturesque scenery and views of Mount Diablo. A detached upper-level bonus retreat is situated above the oversized 4-car garage and features a private entrance and half bath. Ideal for an executive workspace, fitness studio, or game room, this flex space delivers functionality and a unique setting for multi-purpose living and entertaining separate from the main residence. Expanding the property's appeal is a 6-stall barn, horse paddock, and pasture, along with additional land suited for a variety of uses, including a vineyard, RV parking, or possible ADU expansion. This estate affords the opportunity to keep horses in an inviting natural setting while remaining close to top-rated schools, parks, restaurants, shopping, and other local amenities. Offering a "ride-in, ride-out" equestrian lifestyle, the property provides access to nearby horse-friendly trails and vast open space. Ride onto the scenic trail networks of Shell Ridge Open Space, Diablo Foothills Regional Park, and the surrounding Mount Diablo landscapes, where miles of rolling hills, ridgelines, valleys, and protected grasslands create an experience seldom found in the Bay Area.