Set on nearly one private acre in the most coveted enclave of Mount Tiburon, 81 Mount Tiburon is a rare legacy estate with cinematic, unobstructed views spanning the San Francisco skyline, the Bay, the Golden Gate Bridge, and Mount Tamalpais. Surrounded by some of the most significant sales in Marin County, this is a property defined by scale, presence, and irreplaceable positioning.
81 Mount Tiburon is being offered very quietly and off-market at $7,500,000, as-is. Initial demo work has begun, and the project includes architectural plans and engineering, with permitting currently in motion — presenting a rare opportunity for a buyer or developer to step into a thoughtfully designed vision with meaningful groundwork already underway.
The proposed reimagining expands the residence to approximately 4,500 square feet, creating a dramatic and refined modern home with five bedrooms and four and a half bathrooms designed to capture the extraordinary setting.
A grand formal entry frames postcard views of the Bay and Golden Gate Bridge — a breathtaking introduction that sets the tone for what unfolds beyond. The heart of the home is envisioned as a true chef’s kitchen anchored by an oversized center island, opening to the dining area and backyard for seamless indoor-outdoor living. From the sink, Mount Tamalpais rises in the distance — a daily reminder of where you are.
The great room is designed to be nothing short of spectacular, with soaring vaulted ceilings, a dramatic floor-to-ceiling fireplace, and expansive walls of glass that dissolve the boundary between interior and exterior spaces. Panoramic vistas become the backdrop to everyday living and unforgettable entertaining.
Designed for both lifestyle and longevity, the proposed floor plan includes:
- A luxurious primary suite with Golden Gate Bridge views and a spa-inspired bath
- A junior primary suite on the main level for effortless generational living
- A private junior ADU with its own kitchen and laundry — enhanced by a dedicated health and wellness platform featuring a barrel sauna and cold plunge
The sun-drenched backyard has been envisioned as a private resort setting, with expansive turf lawns, a pool and pool deck, and multiple entertaining terraces — an estate-like environment rarely found this close to San Francisco. A long, estate-style driveway and a two-car garage with a glass vestibule opening to a mudroom complete the vision.
81 Mount Tiburon is not simply a remodel opportunity — it is the chance to create one of the most compelling view estates in Marin County. With extraordinary scale, privacy, and panoramic beauty, opportunities like this rarely present themselves.
Digitally altered images with architectural renderings.
