Pre-purchase opportunity with a target completion in Summer 2027. Set atop nearly one private acre in prestigious Mount Tiburon, this extraordinary estate property offers panoramic views spanning the San Francisco skyline, Bay Bridge, Golden Gate Bridge, Angel Island, and Mt Tam. Currently undergoing a comprehensive transformation, the existing 3,599-square-foot residence is planned to expand to approximately 4,501 square feet, creating a spectacular contemporary estate designed to maximize the breathtaking setting. The proposed design includes five bedrooms, four full baths, one half bath, soaring living spaces, a luxurious primary suite, private guest accommodations, and seamless indoor-outdoor living. Planned resort-style grounds feature expansive entertaining areas, level lawns, pool, and exceptional privacy. Offered during construction with plans, engineering, and permitting in progress. Rare opportunity to secure one of Tiburon's most compelling future estates. Limited opportunity. Renderings and select images are architectural visualizations intended to illustrate the proposed design. Plans, specifications, and development details are available upon request.
Active
$13,500,000
81 Mount Tiburon Road, Tiburon, CA 94920
5beds
4,501sqft
Single Family Residence
Built in 1970
0.95 Acres Lot
$12,619,800 Zestimate®
$2,999/sqft
$-- HOA
What's special
Private guest accommodationsLuxurious primary suiteExceptional privacyExpansive entertaining areasLevel lawnsSoaring living spacesSeamless indoor-outdoor living
- 105 days
- 1,948
- 72
Zillow last checked:
Listing updated:
Listed by:
Susan Hewitt DRE #00996144 415-407-8349,
Golden Gate Sotheby's 415-464-9300,
C.J. Nakagawa DRE #01913564 415-407-2151,
Golden Gate Sotheby's
Source: BAREIS,MLS#: 326053863
Originating MLS: Marin County
Originating MLS: Marin CountyFacts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 5
- Full bathrooms: 4
- 1/2 bathrooms: 1
Bedroom
- Level: Main
Bathroom
- Level: Main
Dining room
- Level: Main
Family room
- Level: Main
Kitchen
- Level: Main
Living room
- Level: Main
Heating
- Central
Cooling
- Central Air
Appliances
- Laundry: Inside Room
Features
- Basement: None
- Number of fireplaces: 1
- Fireplace features: Gas Piped
Interior area
- Total structure area: 4,501
- Total interior livable area: 4,501 sqft
Property
Parking
- Total spaces: 5
- Parking features: Garage Faces Front, Downslope
- Garage spaces: 2
Features
- Levels: Three Or More
- Stories: 2
- Has private pool: Yes
- Pool features: In Ground, Private
- Has view: Yes
- View description: Bay, Bay Bridge, Bridge(s), Golden Gate Bridge, Marina, Mt Tamalpais, San Francisco
- Has water view: Yes
- Water view: Bay,Marina
Lot
- Size: 0.95 Acres
- Features: Flag Lot, Greenbelt, Private
Details
- Additional structures: ADU Full Bathrooms: 1, ADU Type: 2nd Unit Attached
- Parcel number: 05826107
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
- Attached to another structure: Yes
Condition
- Year built: 1970
Utilities & green energy
- Sewer: Public Sewer
- Water: Water District
- Utilities for property: Other
Community & HOA
HOA
- Has HOA: No
Location
- Region: Belvedere Tiburon
Financial & listing details
- Price per square foot: $2,999/sqft
- Tax assessed value: $4,500,000
- Date on market: 6/19/2026
Estimated market value
$12,619,800
$11.99M - $13.25M
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 6/19/2026 | Listed for sale | $13,500,000+200%$2,999/sqft |
Source:  BAREIS #326053863 Report a problem | ||
| 10/17/2025 | Sold | $4,500,000$1,000/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2026 | -- | $4,500,000 +262.2% |
| 2025 | $15,897 +4.5% | $1,242,378 +2% |
| 2024 | $15,212 +3.5% | $1,218,021 +2% |
| 2023 | $14,699 +3.4% | $1,194,139 +2% |
| 2022 | $14,219 +1.9% | $1,170,727 +2% |
| 2021 | $13,956 +0.7% | $1,147,772 +1% |
| 2020 | $13,854 +1.9% | $1,136,007 +2% |
| 2019 | $13,593 +0.9% | $1,113,734 +2% |
| 2018 | $13,466 +1.4% | $1,091,898 +2% |
| 2017 | $13,286 +4.1% | $1,070,493 +2% |
| 2016 | $12,763 -0.4% | $1,049,504 +1.5% |
| 2015 | $12,809 +3.2% | $1,033,740 +2% |
| 2014 | $12,407 | $1,013,492 +0.5% |
| 2013 | -- | $1,008,918 +2% |
| 2012 | -- | $989,141 +2% |
| 2011 | -- | $969,749 +0.8% |
| 2010 | -- | $962,505 -0.2% |
| 2009 | -- | $964,796 +2% |
| 2008 | -- | $945,880 +2% |
| 2007 | -- | $927,335 +2% |
| 2006 | -- | $909,153 +2% |
| 2005 | -- | $891,330 +2% |
| 2004 | -- | $873,857 +1.9% |
| 2003 | -- | $857,848 +2% |
| 2002 | -- | $841,031 +2% |
| 2001 | -- | $824,545 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.Climate risks
Neighborhood: 94920
- $4,829,2004 bd4 ba3.8k sqft35 Mount Tiburon Rd, Belvedere Tiburon, CA 94920Off Market
- $6,675,0006 bd6 ba7.3k sqft83 Mount Tiburon Rd, Belvedere Tiburon, CA 94920Sold
- $9,014,3006 bd6 ba7k sqft77 Mount Tiburon Rd, Belvedere Tiburon, CA 94920Off Market
- $9,373,9004 bd4 ba4.6k sqft11 Mount Tiburon Rd, Belvedere Tiburon, CA 94920Off Market
Similar homes
- $7,500,0005 bd5 ba4.3k sqft17 Tanfield Road, Tiburon, CA 94920For Sale
MLS ID #326079663, Bill Bullock Lydia Sarkissian, Golden Gate Sotheby's. BAREIS - $10,450,0005 bd5 ba5.2k sqft1808 Lagoon View Drive, Tiburon, CA 94920For Sale
MLS ID #326067176, Payton Stiewe, Engel & Volkers San Francisco. BAREIS - $7,495,0005 bd6 ba5.4k sqft9 Francisco Vista Court, Tiburon, CA 94920For Sale
MLS ID #326076416, Kouros Tavakoli, Golden Gate Sotheby's. BAREIS - $12,950,0005 bd5 ba5.5k sqft126 Winding Way, Ross, CA 94957For Sale
MLS ID #326080191, Margot R Edde, City Real Estate. BAREIS
