Anchored on over two private acres in San Rafael's coveted Country Club neighborhood, 80 Montecito Road is a rare estate offering the ultimate Marin lifestyle. Located on a quiet cul-de-sac and spanning approximately 2+ acres across three parcels, this exceptional property combines privacy, flexibility, and resort-style living including the potential to build an additional residence on the adjoining parcel. Designed for both grand entertaining and everyday comfort, the residence features five bedrooms and three bathrooms on the primary level, highlighted by soaring 9-foot ceilings, formal living and dining rooms, and a expansive deck capturing tranquil hillside and Yacht Harbor views. A gourmet chef's kitchen is equipped with premium Viking, Miele, and Thermador appliances, while the spacious family room with wet bar creates the perfect setting for gatherings. The private primary suite offers its own secluded deck, with multiple rooms opening seamlessly to serene outdoor patios and gardens. Recently enhanced with a stylish lower-level Accessory Dwelling Unit, the property offers incredible versatility for guest accommodations, multigenerational living, or the ultimate pool house retreat. Featuring an ensuite bedroom, modern designer kitchen, spacious living area, powder room, nano doors, and private patio, this space flows effortlessly to the reimagined outdoor experience complete with a sparkling pool, expansive entertaining patios, illuminated hardscape, fire pit, and lush private grounds. Modern conveniences abound with a fully WiFi-enabled smart home system, owned solar, Tesla charger, and Power Wall. Ideally located moments from waterfront trails, hiking & mountain biking, vibrant downtown San Rafael, 101 & 580 highways, and for those with boats, walk to the Marin Yacht Club, or a short drive to Loch Lomond Marina. 80 Montecito Road presents a truly turn-key opportunity in one of Marin's most desirable settings.