Google street view image for 25 Unionstone Dr, San Rafael, CA 94903

Off market dec 2008 for $675K

$1,476,393

Est. refi paymentEst. refi $3,701/mo

•

2 ba

•

2,027

sq ft

25 Unionstone Dr, San Rafael, CA 94903

About this home

25 Unionstone Dr is a 2,027 square foot house on a 7,150 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on December 04, 2008 for $675,100. Based on Redfin's San Rafael data, we estimate the home's value is $1,476,393.

Single-familyProperty Type

1960Year Built

7,150 sq ftLot Size

$728Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,476,393

$801K since sold in December 2008$25K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 9.7% higher than the average sale price ($1.35M) of 6 comparable homes.

SOLD SEP 14, 2026
$1,125,000
A
3 beds2 baths1,360 sq ft
2510 Las Gallinas Ave, San Rafael, CA 94903
SOLD JUL 13, 2026
$1,290,888
B
3 beds2 baths1,456 sq ft
2725 Las Gallinas Ave, San Rafael, CA 94903
SOLD JUL 27, 2026
$1,600,000
C
4 beds2 baths1,868 sq ft
678 Appleberry Dr, San Rafael, CA 94903
SOLD JUL 13, 2026
$1,500,809
D
4 beds2 baths1,932 sq ft
809 Flaxberry Ln, San Rafael, CA 94903
SOLD FEB 3, 2026
$1,215,000
E
3 beds2 baths1,544 sq ft
19 Unionstone Dr, San Rafael, CA 94903
Skyline Properties
SOLD MAR 20, 2026
$1,340,000
F
3 beds2 baths1,825 sq ft
892 Greenberry Ln, San Rafael, CA 94903

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Earn from this home

Sell

$1,102,882

Est. take-home

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Refinance

Est. cash available

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Rent

$4,825/mo

Redfin rental estimate

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Market trends in 94903, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

101.6%

0.3% MoM

Median sale price

$1.2M

$20K MoM

Avg. days on market

29d

3 days MoM

Recently sold homes

5 MoM

New listings for sale

OPEN WED, 4PM TO 6PM
$1,695,000
3 beds2 baths1,847 sq ft
564 Montecillo Rd, San Rafael, CA 94903
$1,483,800
4 beds2 baths1,697 sq ft
833 Appleberry Dr, San Rafael, CA 94903
HOT HOME
$799,000
3 beds2 baths1,874 sq ft
555 Las Colindas Rd, San Rafael, CA 94903
OPEN WED, 1PM TO 2:30PM
$449,999
2 beds2.5 baths1,236 sq ft
60 Almond Ct, San Rafael, CA 94903
$1,450,000
4 beds3 baths2,296 sq ft
48 Canyon Oak Dr, San Rafael, CA 94903
$450,000
1 bed1 bath804 sq ft
5 Forest Ln, San Rafael, CA 94903
EARLY ACCESS
$210,000
1 bed1 bath660 sq ft
100 Thorndale Dr #437, San Rafael, CA 94903
VIDEO TOUR
$1,675,000
4 beds2.5 baths1,783 sq ft
772 Beechnut Ct, San Rafael, CA 94903
$1,535,000
4 beds3 baths2,491 sq ft
27 Vista Marin Dr, San Rafael, CA 94903
$289,000
2 beds2 baths1,100 sq ft
55 Yosemite Rd, San Rafael, CA 94903
See all

Provided by Redfin

Sale history for 25 Unionstone Dr

Year

Property tax

Land + Additions

Assessment*

2025

$13,872 (+3.1%)

$525,368 + $361,190

$886,558

2024

$13,452 (+0.8%)

$515,068 + $354,109

$869,177

2023

$13,340 (+4.3%)

$504,972 + $347,168

$852,140

2022

$12,791 (+4.8%)

$495,072 + $340,362

$835,434

2021

$12,209 (+0.4%)

$485,368 + $333,690

$819,058

2020

$12,159 (+4.0%)

$475,852 + $327,148

$803,000

2019

$11,692 (+1.5%)

$470,976 + $323,796

$794,772

2018

$11,516 (+5.9%)

$461,744 + $317,449

$779,193

2017

$10,878 (+2.3%)

$443,816 + $305,123

$748,939

2016

$10,637 (+2.7%)

$443,816 + $305,123

$748,939

2015

$10,358 (+6.6%)

$435,116 + $299,142

$734,258

2014

$9,714 (+6.4%)

$420,192 + $288,882

$709,074

2013

$9,126 (+4.4%)

$420,192 + $288,882

$709,074

2012

$8,743 (+0.6%)

$387,030 + $266,082

$653,112

2011

$8,691 (+1.9%)

$368,600 + $253,412

$622,012

2010

$8,532 (−2.5%)

$380,000 + $261,250

$641,250

2009

$8,751 (+138.5%)

$380,000 + $261,250

$641,250

2008

$3,670

$400,000 + $275,000

$675,000

Tax history for 25 Unionstone Dr

Year

Property tax

Land + Additions

Assessment*

2025

$13,872 (+3.1%)

$525,368 + $361,190

$886,558

2024

$13,452 (+0.8%)

$515,068 + $354,109

$869,177

2023

$13,340 (+4.3%)

$504,972 + $347,168

$852,140

2022

$12,791 (+4.8%)

$495,072 + $340,362

$835,434

2021

$12,209 (+0.4%)

$485,368 + $333,690

$819,058

2020

$12,159 (+4.0%)

$475,852 + $327,148

$803,000

2019

$11,692 (+1.5%)

$470,976 + $323,796

$794,772

2018

$11,516 (+5.9%)

$461,744 + $317,449

$779,193

2017

$10,878 (+2.3%)

$443,816 + $305,123

$748,939

2016

$10,637 (+2.7%)

$443,816 + $305,123

$748,939

2015

$10,358 (+6.6%)

$435,116 + $299,142

$734,258

2014

$9,714 (+6.4%)

$420,192 + $288,882

$709,074

2013

$9,126 (+4.4%)

$420,192 + $288,882

$709,074

2012

$8,743 (+0.6%)

$387,030 + $266,082

$653,112

2011

$8,691 (+1.9%)

$368,600 + $253,412

$622,012

2010

$8,532 (−2.5%)

$380,000 + $261,250

$641,250

2009

$8,751 (+138.5%)

$380,000 + $261,250

$641,250

2008

$3,670

$400,000 + $275,000

$675,000

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

Property details

Interior

Heating & Cooling
Heating Fuel Type: Gas
Heating Type: Central

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Exterior

Exterior Information
Foundation Type: Raised W/Crawlspace
Building Style Type: Contemporary
Building Construction Quality: Good
Exterior Wall: Wood

Property Information
Subdivision Name: MARINWOOD #7
Living Sq. Ft: 2,027
Building Sq. Ft: 2,027
# of Units: 1
# of Stories: 1
Legal Description: MAP 10 PG 42 LOT 978

Lot Information
# of Buildings: 1
Land Sq. Ft: 7,150
Legal Lot Number: 978
Municipality Name: DIXIE SCHOOL AREA (MARINWOOD)
Acres: 0.1641
Zoning Code: R1 B2
County Use Description: 1 FAMILY RESID

Utility Information
Sewer Type: Public

Financial

Assessor Information
Assessment Year: 2026
Tax Area: DIXIE SCHOOL AREA (MARINWOOD)

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 2,027
Stories: 1.0
Lot Size: 7,150 square feet
Style: Single Family Residential
Year Built: 1960
Year Renovated: 1967
County: Marin County
APN: 164-353-08

Home facts updated by county records on Oct 19, 2026

Around this home

Schools

Mary E. Silveira Elementary School

Public K-5 • Assigned • 0.2mi

7/10

Miller Creek Middle School

Public 6-8 • Assigned • 0.6mi

10/10

Terra Linda High School

Public 9-12 • Assigned • 2.7mi

9/10

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

4/10 Fire Factor

1% chance of being in a wildfire in next 30 years

3/10 Heat Factor

8 days above 88° 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

15 unhealthy days expected this year, 15 days in 30 years

Provided by First Street

Historical weather

San Rafael, CA • 94903

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

$1.40M – $1.70M

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Nearby similar homes

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27 Newport Landing Dr, Novato, CA 94949

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27 Vista Marin Dr, San Rafael, CA 94903

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123 Mabry Way, San Rafael, CA 94903

$1,483,800

4 beds2 baths1,697 sq ft

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New listings for sale in 94903

OPEN WED, 4PM TO 6PM

$1,695,000

3 beds2 baths1,847 sq ft

564 Montecillo Rd, San Rafael, CA 94903

$1,483,800

4 beds2 baths1,697 sq ft

833 Appleberry Dr, San Rafael, CA 94903

HOT HOME

$799,000

3 beds2 baths1,874 sq ft

555 Las Colindas Rd, San Rafael, CA 94903

OPEN WED, 1PM TO 2:30PM

$449,999

2 beds2.5 baths1,236 sq ft

60 Almond Ct, San Rafael, CA 94903

$1,450,000

4 beds3 baths2,296 sq ft

48 Canyon Oak Dr, San Rafael, CA 94903

$450,000

1 bed1 bath804 sq ft

5 Forest Ln, San Rafael, CA 94903

EARLY ACCESSCOMPASS COMING SOON

$210,000

1 bed1 bath660 sq ft

100 Thorndale Dr #437, San Rafael, CA 94903

VIDEO TOUR

$1,675,000

4 beds2.5 baths1,783 sq ft

772 Beechnut Ct, San Rafael, CA 94903

$1,535,000

4 beds3 baths2,491 sq ft

27 Vista Marin Dr, San Rafael, CA 94903

Home values near 25 Unionstone Dr

Data from public records.

Address	Redfin Estimate
34 Unionstone Dr, San Rafael, CA 4 Beds \| 2 Baths \| 1612 Sq. Ft.	$1,509,590
11 Unionstone Dr, San Rafael, CA 4 Beds \| 2 Baths \| 1748 Sq. Ft.	$1,631,688

Address	Redfin Estimate
12 Unionstone Dr, San Rafael, CA 5 Beds \| 3 Baths \| 2391 Sq. Ft.	$1,748,082
26 Unionstone Dr, San Rafael, CA 5 Beds \| 5 Baths \| 4682 Sq. Ft.	$4,128,462

Address	Redfin Estimate
41 Unionstone Dr, San Rafael, CA 4 Beds \| 3 Baths \| 2345 Sq. Ft.	$1,667,231
14 Unionstone Dr, San Rafael, CA 4 Beds \| 2 Baths \| 1642 Sq. Ft.	$1,334,157

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94903, CA

Sale history for 25 Unionstone Dr

Tax history for 25 Unionstone Dr

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94903

Home values near 25 Unionstone Dr

More real estate resources