Google street view image for 18 Lagoon Rd, Tiburon, CA 94920

Off market

$3,691,176

•

5 ba

•

2,922

sq ft

18 Lagoon Rd, Tiburon, CA 94920

About this home

18 Lagoon Rd is a 2,922 square foot house on a 6,000 square foot lot with 4 bedrooms and 5 bathrooms. Based on Redfin's Tiburon data, we estimate the home's value is $3,691,176.

Single-familyProperty Type

1943Year Built

6,000 sq ftLot Size

$1,263Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$3,691,176

$261K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 42.3% lower than the average sale price ($6.40M) of 1 comparable home.

SOLD SEP 14, 2026
$6,400,000
A
4 beds4 baths3,220 sq ft
20 Windward Rd, Belvedere, CA 94920

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Earn from this home

Sell

$3,496,389

Est. take-home

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Rent

$10,739/mo

Redfin rental estimate

List your home for rent

Market trends in 94920, CA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

101.7%

+0.4% MoM

Median sale price

$3.5M

$98K MoM

Avg. days on market

18d

6 days MoM

Recently sold homes

11 MoM

New listings for sale

EARLY ACCESS
$1,795,000
3 beds3 baths1,332 sq ft
1410 Vistazo St W #9, Tiburon, CA 94920
EARLY ACCESS
$1,695,000
2 beds2 baths1,044 sq ft
1410 Vistazo St W #10, Tiburon, CA 94920
$959,000
2 beds2 baths1,244 sq ft
28 Marinero Cir #22, Tiburon, CA 94920
VIDEO TOUR
$30,000,000
1 bed— baths1 sq ft
399 - 419 Belvedere Ave, Belvedere, CA 94920
$11,500,000
4 beds4.5 baths2,973 sq ft
10 Mallard Rd, Belvedere Tiburon, CA 94920
$5,250,000
23 beds20 baths9,130 sq ft
3 Circle Dr, Tiburon, CA 94920
$3,600,000
2 beds2 baths1,969 sq ft
18 San Rafael Ave, Belvedere, CA 94920
OPEN SUN, 2PM TO 4PM
$8,950,000
6 beds3.5 baths3,680 sq ft
38 Peninsula Rd, Belvedere, CA 94920
See all

Provided by Redfin

Sale history for 18 Lagoon Rd

As the MLS and public records start to fill up, we'll list the details here.

Year

Property tax

Land + Additions

Assessment*

2026

$11,528 (+3.1%)

$157,544 + $412,308

$569,852

2025

$11,179 (+5.0%)

$157,544 + $412,308

$569,852

2024

$10,645 (+4.9%)

$154,455 + $404,224

$558,679

2023

$10,144 (+0.4%)

$151,426 + $396,299

$547,725

2022

$10,106 (+2.2%)

$148,458 + $387,118

$535,576

2021

$9,887 (+3.5%)

$145,547 + $376,078

$521,625

2020

$9,551 (+0.8%)

$142,694 + $364,675

$507,369

2019

$9,479 (+3.9%)

$141,231 + $341,637

$482,868

2018

$9,119 (+1.5%)

$138,462 + $334,940

$473,402

2017

$8,987 (+3.2%)

$133,086 + $321,937

$455,023

2016

$8,705 (+0.5%)

$133,086 + $321,937

$455,023

2015

$8,659 (+2.9%)

$130,477 + $315,624

$446,101

2014

$8,418 (+2.3%)

$126,000 + $304,795

$430,795

2013

$8,229 (+2.9%)

$126,000 + $304,795

$430,795

2012

$7,994 (+2.4%)

$125,431 + $303,419

$428,850

2011

$7,809 (+4.6%)

$122,972 + $297,470

$420,442

2010

$7,468 (+4.1%)

$120,561 + $291,638

$412,199

2009

$7,174 (+3.0%)

$119,660 + $289,459

$409,119

2008

$6,964

$119,945 + $290,147

$410,092

Tax history for 18 Lagoon Rd

Year

Property tax

Land + Additions

Assessment*

2026

$11,528 (+3.1%)

$157,544 + $412,308

$569,852

2025

$11,179 (+5.0%)

$157,544 + $412,308

$569,852

2024

$10,645 (+4.9%)

$154,455 + $404,224

$558,679

2023

$10,144 (+0.4%)

$151,426 + $396,299

$547,725

2022

$10,106 (+2.2%)

$148,458 + $387,118

$535,576

2021

$9,887 (+3.5%)

$145,547 + $376,078

$521,625

2020

$9,551 (+0.8%)

$142,694 + $364,675

$507,369

2019

$9,479 (+3.9%)

$141,231 + $341,637

$482,868

2018

$9,119 (+1.5%)

$138,462 + $334,940

$473,402

2017

$8,987 (+3.2%)

$133,086 + $321,937

$455,023

2016

$8,705 (+0.5%)

$133,086 + $321,937

$455,023

2015

$8,659 (+2.9%)

$130,477 + $315,624

$446,101

2014

$8,418 (+2.3%)

$126,000 + $304,795

$430,795

2013

$8,229 (+2.9%)

$126,000 + $304,795

$430,795

2012

$7,994 (+2.4%)

$125,431 + $303,419

$428,850

2011

$7,809 (+4.6%)

$122,972 + $297,470

$420,442

2010

$7,468 (+4.1%)

$120,561 + $291,638

$412,199

2009

$7,174 (+3.0%)

$119,660 + $289,459

$409,119

2008

$6,964

$119,945 + $290,147

$410,092

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Zoning

RMP

Residential Multiple Planned Zone

The RMP zone has the same purposes and shall be governed by the same regulations as the RPD zone (Subsection 1. above) except as otherwise provided herein. The RMP zone conforms with general plan land use designation very high density (VH).

Permitted uses

Include but are not limited to:

Housing-Single unit
Housing-Multiple units
Housing-Senior
Housing-Other
Park & open space

Property details

Interior

Heating & Cooling
Heating Type: Central

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Exterior

Exterior Information
Building Style Type: Contemporary
Building Construction Quality: Good

Property Information
Subdivision Name: HILARITA LAGOON SITES
Living Sq. Ft: 2,922
Building Sq. Ft: 2,922
# of Units: 1

Lot Information
# of Buildings: 1
Land Sq. Ft: 6,000
Legal Lot Number: 3
Municipality Name: BELVEDERE
Acres: 0.1377
County Use Description: 1 FAMILY RESID

Financial

Assessor Information
Assessment Year: 2026
Tax Area: BELVEDERE

Public facts

Beds: 4
Baths: 5.0
Sq. Ft.: 2,922
Stories: —
Lot Size: 6,000 square feet
Style: Single Family Residential
Year Built: 1943
Year Renovated: 1974
County: Marin County
APN: 060-011-03

Home facts updated by county records on Oct 19, 2026

Around this home

Schools

K - 12
Preschool & daycare

Reed Elementary School

Public K-2 • Assigned • 0.6mi

Del Mar Middle School

Public 6-8 • Assigned • 1.9mi

10/10

Redwood High School

Public 9-12 • Assigned • 5.7mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

8/10 Flood Factor

Estimated 80%+ chance 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

3/10 Heat Factor

8 days above 79° expected this year, 18 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)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

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

$3.51M – $4.25M

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Nearby similar homes

$11,500,000

4 beds4.5 baths2,973 sq ft

10 Mallard Rd, Belvedere Tiburon, CA 94920

Private terrace • Optional elevator • 6,830 sq ft lot

VIDEO TOUR

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1 Old Landing Rd, Tiburon, CA 94920

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4 beds3.5 baths4,390 sq ft

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$5,477,000

5 beds4.5 baths4,310 sq ft

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Sweeping views • Landscaped gardens • Level lawn

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4 beds2 baths1,925 sq ft

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Single level home • Updated kitchen • Office game room

$1,499,000

4 beds2 baths1,371 sq ft

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New sewer lateral • Existing permits • Expansive deck

New listings for sale in 94920

EARLY ACCESSCOMPASS COMING SOON

$1,795,000

3 beds3 baths1,332 sq ft

1410 Vistazo St W #9, Tiburon, CA 94920

Built 1963

EARLY ACCESSCOMPASS COMING SOON

$1,695,000

2 beds2 baths1,044 sq ft

1410 Vistazo St W #10, Tiburon, CA 94920

Built 1963

$959,000

2 beds2 baths1,244 sq ft

28 Marinero Cir #22, Tiburon, CA 94920

Panoramic views • View deck • Bayside community

VIDEO TOUR

$30,000,000

1 bed— baths1 sq ft

399 - 419 Belvedere Ave, Belvedere, CA 94920

Developable parcels • Commanding views • 2.75 acre lot

$11,500,000

4 beds4.5 baths2,973 sq ft

10 Mallard Rd, Belvedere Tiburon, CA 94920

Private terrace • Optional elevator • 6,830 sq ft lot

$5,250,000

23 beds20 baths9,130 sq ft

3 Circle Dr, Tiburon, CA 94920

Private deck • Bocce court • Landscaped courtyard

$3,600,000

2 beds2 baths1,969 sq ft

18 San Rafael Ave, Belvedere, CA 94920

Single-level living • Water views • Open-concept kitchen

OPEN SUN, 2PM TO 4PM

$8,950,000

6 beds3.5 baths3,680 sq ft

38 Peninsula Rd, Belvedere, CA 94920

Lagoon frontage • Roof deck • 6,111 sq ft lot

Home values near 18 Lagoon Rd

Data from public records.

Address	Redfin Estimate
11 Lagoon Vis, Tiburon, CA 3 Beds \| 3 Baths \| 2696 Sq. Ft.	$2,655,078
22 Lagoon Vis, Tiburon, CA 3 Beds \| 4 Baths \| 2331 Sq. Ft.	$2,294,620
17 Lagoon Vis, Tiburon, CA 3 Beds \| 3 Baths \| 2696 Sq. Ft.	$2,892,813
23 Lagoon Vis, Tiburon, CA 3 Beds \| 3 Baths \| 2696 Sq. Ft.	$2,556,212
18 Lagoon Vis, Tiburon, CA 2 Beds \| 2 Baths \| 1920 Sq. Ft.	$2,456,678
2 Lagoon Vis, Tiburon, CA 3 Beds \| 3 Baths \| 2696 Sq. Ft.	$3,527,627
19 Lagoon Vis, Tiburon, CA 2 Beds \| 2 Baths \| 1920 Sq. Ft.	$2,331,494

Address	Redfin Estimate
15 Lagoon Vis, Tiburon, CA 3 Beds \| 3 Baths \| 2331 Sq. Ft.	$2,394,435
12 Lagoon Vis, Tiburon, CA 2 Beds \| 2 Baths \| 1920 Sq. Ft.	$2,909,936
10 Lagoon Vis, Tiburon, CA 3 Beds \| 3 Baths \| 2331 Sq. Ft.	$2,004,719
3 Lagoon Vis, Tiburon, CA 3 Beds \| 3 Baths \| 2331 Sq. Ft.	$2,198,637
28 Lagoon Vis, Tiburon, CA 2 Beds \| 2 Baths \| 1360 Sq. Ft.	$1,571,658
8 Lagoon Vis, Tiburon, CA 3 Beds \| 3 Baths \| 2696 Sq. Ft.	$2,585,172
26 Lagoon Vis, Tiburon, CA 2 Beds \| 2 Baths \| 1301 Sq. Ft.	$2,110,216

Address	Redfin Estimate
16 Lagoon Vis, Tiburon, CA 3 Beds \| 3 Baths \| 2331 Sq. Ft.	$2,153,945
21 Lagoon Vis, Tiburon, CA 3 Beds \| 3 Baths \| 2415 Sq. Ft.	$3,175,555
7 Lagoon Vis, Tiburon, CA 2 Beds \| 2 Baths \| 1920 Sq. Ft.	$2,346,185
14 Lagoon Vis, Tiburon, CA 2 Beds \| 3 Baths \| 2696 Sq. Ft.	$2,502,398
9 Lagoon Vis, Tiburon, CA 3 Beds \| 3 Baths \| 2231 Sq. Ft.	$2,427,275
22 Lagoon Rd, Tiburon, CA 2 Beds \| 2 Baths \| 1159 Sq. Ft.	$1,943,029
25 Lagoon Vis, Tiburon, CA 2 Beds \| 2 Baths \| 1940 Sq. Ft.	$3,219,793

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About this home

Redfin Estimate

Earn from this home

Market trends in 94920, CA

Sale history for 18 Lagoon Rd

Tax history for 18 Lagoon Rd

Zoning

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94920

Home values near 18 Lagoon Rd

More real estate resources