20 Tanfield Rd is a 5,870 square foot house on a 2 acre lot with 4 bedrooms and 4 bathrooms. - it last sold on August 31, 2016 for $5,565,000. Based on Redfin's Tiburon data, we estimate the home's value is $7,817,436.
Single-familyProperty Type
1988Year Built
2 acresLot Size
$1,332Est. Price/Sq.Ft.
3 garage spacesParking
Source:Public Records
Redfin Estimate
$7,817,436
$2.3M since sold in August 2016$372K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 2.4% higher than the average sale price ($7.64M) of 4 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
RO-1
Residential Open 1 Zone
The RO zone is intended to promote and encourage the maintenance of a suitable environment for low-density, single-family development on lots larger than those typically found in the R-1 zone.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Senior
Housing-Other
Park & open space
Property details
Interior
Basement Information
Basement Sq. Ft: 592
Basement Type: Unfinished
Heating & Cooling
Heating Type: Central
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Building Construction Quality: Excellent
Pool Information
Has Pool
Property Information
Living Sq. Ft: 5,870
Building Sq. Ft: 6,462
# of Units: 1
Parking & Garage Information
Garage/Parking Sq. Ft: 672
Lot Information
# of Buildings: 1
Land Sq. Ft: 87,060
Municipality Name: TIBURON
Acres: 1.9986
County Use Description: 1 FAMILY RESID
Financial
Assessor Information
Assessment Year: 2026
Tax Area: TIBURON
Public facts
Beds: 4
Baths: 4.0
Sq. Ft.: 5,870
Stories: —
Lot Size: 2 acres
Style: Single Family Residential
Year Built: 1988
Year Renovated: 1994
County: Marin County
APN: 039-081-20
Home facts updated by county records on Jul 13, 2026
Around this home
Schools
Bel Aire Elementary School
Public 3-5 • Assigned • 1.1mi
10/10
Del Mar Middle School
Public 6-8 • Assigned • 0.5mi
10/10
Redwood High School
Public 9-12 • Assigned • 3.6mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
2/10 Heat Factor
7 days above 83° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
13 unhealthy days expected this year, 13 days in 30 years
Provided by First Street
Historical weather
Tiburon, CA • 94920
Average low and high temperatures (°F)
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64
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70
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70
57
61
51
56
48
Jan
Feb
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Sun exposure
In this area, properties receive around 10.8 hours in
June and 5 hours in December, placing it above the
U.S. average for solar exposure.
10.8 hrs
5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$7.43M – $8.99M
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