Welcome to this rarely available, fully remodeled Castillo Penthouse, ideally positioned at the end of a picturesque cul-de-sac and offering exceptional privacy. This residence has just undergone a complete custom renovation featuring new wood-plank tile flooring and fresh paint throughout, along with a brand-new gourmet kitchen showcasing white soft-close cabinetry, elegant quartz countertops, new appliances, a gas cooktop, and premium Kohler plumbing fixtures. The spa-inspired bathrooms are appointed with quartz countertops, a soaking tub, frameless glass showers, new vanities, Kohler fixtures, and dimmable, anti-fog mirrors. The penthouse offers two expansive living and entertaining areas, providing an ideal layout for both everyday living and hosting guests. Enjoy nearly 700 square feet of covered lanai space overlooking a serene preserve-one of the most tranquil settings in all of Tiburon. Southwestern exposure delivers breathtaking sunset views, while a second balcony facing the fountain cul-de-sac offers the perfect spot for morning coffee. Additional recent upgrades include a brand new AC and tankless water heater, custom-built closet systems and designer light fixtures. Electric shutters on all lanais provide added peace of mind while away. Building renovations have also been completed and include a new roof, new screens, exterior paint, and a beautifully remodeled lobby. The attached two-car garage provides direct access to your private elevator, which opens into the penthouse featuring soaring 10'6” ceilings. A SIGNATURE MEMBERSHIP ($50K value) IS INCLUDED - offering immediate access to exclusive Golf and Social Memberships, and all of the amazing Ritz-Carlton amenities. These include the Reservoir water experience with waterslides, lazy river, cabanas, resort-style pool, tennis facilities, fitness center with personal trainers and classes, beach transportation to Vanderbilt Beach, airport shuttle services, and curated concierge events. Tiburon also offers 36 holes of championship golf designed by Greg Norman and a 27,000-square-foot golf club. Ideally located where beach days, fine dining, and shopping are all just minutes away.