Architect-designed by renowned modernist John Hans Ostwald of UC Berkeley's Environmental Design department, this exceptional single-story residence presents a rare opportunity to own a custom home, where architectural intention, refined craftsmanship, and everyday livability converge. Nestled within an intimate 21-custom home enclave, the property makes a quiet yet confident statement from arrival. Known for clean lines, natural materials, and harmony with the landscape, Ostwald designed homes that maximize light, create intentional sightlines, and blur the line between indoor and outdoor living — all beautifully expressed here. Expansive windows illuminate open, flowing spaces ideal for both sophisticated entertaining and comfortable daily life, while the single-story layout enhances accessibility without sacrificing proportion, balance, or warmth. The upgraded kitchen features high-end GE Café appliances and refined finishes at the heart of the home. You can enjoy the HOA community tennis court and pool too. Ideally located just minutes from Downtown Livermore, wineries, the Community Center, and I-580, this architecturally significant residence offers both distinction and lifestyle in one remarkable setting. Bring your admiration and stop on by to see this one-of-a-kind home.