Set on more than an acre of private, south-facing grounds, this exceptional Thompson Brooks-designed residence showcases unobstructed bridge-to-bridge views across San Francisco Bay. Clean lines, walls of glass, and expansive proportions create light-filled interiors with a seamless connection to the landscape. The main level features grand-scale living and dining rooms, a family room, office, den, powder room, and expansive eat-in kitchen. A glass-wrapped solarium frames direct Golden Gate Bridge views, while an Ipe deck, terraces, gardens, and sun-drenched lawns invite effortless indoor-outdoor living and entertaining. The bedroom level offers four bedrooms and three baths, including a serene primary suite with Bay views, sitting area, fitted walk-in closet, dual vanities, glass-enclosed shower, soaking tub, and private garden seating area with fountain. A two-car garage, laundry room, and generous storage complete the home. Exceptionally private yet minutes from downtown Tiburon, the waterfront, yacht clubs, ferry, restaurants, shops, and hiking trails, 139 Hacienda is a rare convergence of architecture, landscape, light, and extraordinary views.