Google street view image for 34 Unionstone Dr, San Rafael, CA 94903

Off market jul 2005 for $830K

$1,509,590

Est. refi paymentEst. refi $5,499/mo

•

2 ba

•

1,612

sq ft

34 Unionstone Dr, San Rafael, CA 94903

About this home

34 Unionstone Dr is a 1,612 square foot house on a 0.27 acre lot with 4 bedrooms and 2 bathrooms. - it last sold on July 12, 2005 for $830,000. Based on Redfin's San Rafael data, we estimate the home's value is $1,509,590.

Single-familyProperty Type

1965Year Built

0.27 acresLot Size

$936Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,509,590

$680K since sold in July 2005$5,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 15.9% lower than the average sale price ($1.79M) of 5 comparable homes.

SOLD SEP 29, 2026
$905,000
A
4 beds2 baths1,615 sq ft
467 Alameda De La Loma, Novato, CA 94949
SOLD SEP 29, 2026
$1,657,500
B
4 beds2 baths2,163 sq ft
256 Mount Shasta Dr, San Rafael, CA 94903
SOLD JUN 24, 2026
$1,485,000
C
4 beds2 baths1,966 sq ft
450 Cedar Hill Dr, San Rafael, CA 94903
SOLD MAY 28, 2026
$2,375,000
D
4 beds2 baths2,427 sq ft
25 Mt Lassen Dr, San Rafael, CA 94903
SOLD AUG 13, 2026
$2,550,000
E
4 beds2 baths1,882 sq ft
1331 Idylberry Rd, San Rafael, CA 94903

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$1,151,337

Est. take-home

List your home with Redfin and save $7,548

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$4,780/mo

Redfin rental estimate

List your home for rent

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

NEW 20 HRS AGO
$210,000
1 bed1 bath660 sq ft
100 Thorndale Dr #245, San Rafael, CA 94903
$629,000
2 beds2 baths1,333 sq ft
260 Channing Way #2, San Rafael, CA 94903
$1,695,000
3 beds2 baths1,847 sq ft
564 Montecillo Rd, San Rafael, CA 94903
OPEN SUN, 2PM TO 5PM
$1,483,800
4 beds2 baths1,697 sq ft
833 Appleberry Dr, San Rafael, CA 94903
OPEN SAT, 2PM TO 4PM
$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
OPEN SAT, 1PM TO 4PM
$1,675,000
4 beds2.5 baths1,783 sq ft
772 Beechnut Ct, San Rafael, CA 94903
See all

Provided by Redfin

Sale history for 34 Unionstone Dr

Year

Property tax

Land + Additions

Assessment*

2025

$16,889 (+3.0%)

$620,232 + $557,511

$1,177,743

2024

$16,401 (+0.4%)

$608,074 + $546,583

$1,154,657

2023

$16,328 (+4.2%)

$596,153 + $535,867

$1,132,020

2022

$15,670 (+4.8%)

$584,467 + $525,363

$1,109,830

2021

$14,959 (+0.1%)

$573,008 + $515,063

$1,088,071

2020

$14,938 (+3.3%)

$561,776 + $504,967

$1,066,743

2019

$14,459 (+1.4%)

$556,018 + $499,791

$1,055,809

2018

$14,262 (+5.8%)

$545,120 + $489,995

$1,035,115

2017

$13,478 (+2.2%)

$523,960 + $470,975

$994,935

2016

$13,190 (+7.4%)

$523,960 + $470,975

$994,935

2015

$12,284 (+15.1%)

$513,690 + $461,743

$975,433

2014

$10,673 (+7.8%)

$426,264 + $384,755

$811,019

2013

$9,904 (+4.5%)

$426,264 + $384,755

$811,019

2012

$9,477 (−0.2%)

$387,513 + $349,778

$737,291

2011

$9,495 (+1.7%)

$369,060 + $333,122

$702,182

2010

$9,334 (−2.8%)

$380,475 + $343,425

$723,900

2009

$9,600 (−8.7%)

$380,475 + $343,425

$723,900

2008

$10,514

$400,500 + $361,500

$762,000

Tax history for 34 Unionstone Dr

Year

Property tax

Land + Additions

Assessment*

2025

$16,889 (+3.0%)

$620,232 + $557,511

$1,177,743

2024

$16,401 (+0.4%)

$608,074 + $546,583

$1,154,657

2023

$16,328 (+4.2%)

$596,153 + $535,867

$1,132,020

2022

$15,670 (+4.8%)

$584,467 + $525,363

$1,109,830

2021

$14,959 (+0.1%)

$573,008 + $515,063

$1,088,071

2020

$14,938 (+3.3%)

$561,776 + $504,967

$1,066,743

2019

$14,459 (+1.4%)

$556,018 + $499,791

$1,055,809

2018

$14,262 (+5.8%)

$545,120 + $489,995

$1,035,115

2017

$13,478 (+2.2%)

$523,960 + $470,975

$994,935

2016

$13,190 (+7.4%)

$523,960 + $470,975

$994,935

2015

$12,284 (+15.1%)

$513,690 + $461,743

$975,433

2014

$10,673 (+7.8%)

$426,264 + $384,755

$811,019

2013

$9,904 (+4.5%)

$426,264 + $384,755

$811,019

2012

$9,477 (−0.2%)

$387,513 + $349,778

$737,291

2011

$9,495 (+1.7%)

$369,060 + $333,122

$702,182

2010

$9,334 (−2.8%)

$380,475 + $343,425

$723,900

2009

$9,600 (−8.7%)

$380,475 + $343,425

$723,900

2008

$10,514

$400,500 + $361,500

$762,000

*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 Type: Central

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Exterior

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

Property Information
Subdivision Name: MARINWOOD 07
Living Sq. Ft: 1,612
Building Sq. Ft: 1,612
# of Units: 1
Legal Description: MAP E5 546

Parking & Garage Information
Garage/Parking Sq. Ft: 437

Lot Information
# of Buildings: 1
Land Sq. Ft: 11,571
Legal Lot Number: 988
Municipality Name: DIXIE SCHOOL AREA (MARINWOOD)
Acres: 0.2656
County Use Description: 1 FAMILY RESID

Financial

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

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 1,612
Stories: —
Lot Size: 0.27 acres
Style: Single Family Residential
Year Built: 1965
Year Renovated: 1979
County: Marin County
APN: 164-354-03

Home facts updated by county records on Oct 19, 2026

Around this home

Schools

Mary E. Silveira Elementary School

Public K-5 • Assigned • 0.3mi

7/10

Miller Creek Middle School

Public 6-8 • Assigned • 0.7mi

10/10

Terra Linda High School

Public 9-12 • Assigned • 2.8mi

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

7 days above 88° expected this year, 17 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

$1.44M – $1.74M

Reach more buyers when you sell with Redfin. Save up to $15,096 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

OPEN SUN, 2PM TO 4PM

$3,950,000

3 beds3 baths3,005 sq ft

75 Fairway Dr, Novato, CA 94949

OPEN SUN, 1PM TO 3PM

$1,650,000

4 beds3 baths2,925 sq ft

70 Corte Arriba Ct, Novato, CA 94949

OPEN SUN, 2PM TO 4PM

$1,535,000

4 beds3 baths2,491 sq ft

27 Vista Marin Dr, San Rafael, CA 94903

NEW CONSTRUCTION

$3,095,000

4 beds4.5 baths3,198 sq ft

27 Erin Dr, San Rafael, CA 94903

(415) 660-9955

$1,200,000

4 beds2 baths1,720 sq ft

420 Calle De La Mesa, Novato, CA 94949

OPEN SAT, 2PM TO 4PM

$1,060,800

3 beds2 baths1,352 sq ft

123 Mabry Way, San Rafael, CA 94903

New listings for sale in 94903

NEW 20 HRS AGO

$210,000

1 bed1 bath660 sq ft

100 Thorndale Dr #245, San Rafael, CA 94903

$629,000

2 beds2 baths1,333 sq ft

260 Channing Way #2, San Rafael, CA 94903

$1,695,000

3 beds2 baths1,847 sq ft

564 Montecillo Rd, San Rafael, CA 94903

OPEN SUN, 2PM TO 5PM

$1,483,800

4 beds2 baths1,697 sq ft

833 Appleberry Dr, San Rafael, CA 94903

OPEN SAT, 2PM TO 4PM

$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

OPEN SAT, 1PM TO 4PMVIDEO TOUR

$1,675,000

4 beds2.5 baths1,783 sq ft

772 Beechnut Ct, San Rafael, CA 94903

Home values near 34 Unionstone Dr

Data from public records.

Address	Redfin Estimate
45 Unionstone Drive, San Rafael, CA 3 Beds \| 2 Baths \| 2283 Sq. Ft.	$1,400,525
25 Unionstone Drive, San Rafael, CA 3 Beds \| 2 Baths \| 2027 Sq. Ft.	$1,476,393

Address	Redfin Estimate
41 Unionstone Drive, San Rafael, CA 4 Beds \| 3 Baths \| 2345 Sq. Ft.	$1,667,231
53 Unionstone Drive, San Rafael, CA 3 Beds \| 2 Baths \| 1544 Sq. Ft.	$1,324,370

Address	Redfin Estimate
1 Unionstone Lane, San Rafael, CA 4 Beds \| 3 Baths \| 3208 Sq. Ft.	$1,998,532
26 Unionstone Drive, San Rafael, CA 5 Beds \| 5 Baths \| 4682 Sq. Ft.	$4,128,462

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

94903 homes for sale
94960 homes for sale
94947 homes for sale
94949 homes for sale

Houses for sale near me	San Diego, CA homes for sale	Fremont, CA homes for sale
Land for sale near me	San Francisco, CA homes for sale	Sacramento, CA homes for sale
Open Houses near me	Los Angeles, CA homes for sale	Lucas Valley-Marinwood Property Records
Condos for sale near me	San Jose, CA homes for sale	CA New Listings
Agents near me	Irvine, CA homes for sale	Lucas Valley-Marinwood Housing Market

Oakland homes for sale
Berkeley homes for sale
San Francisco homes for sale

North San Rafael homes for sale
West San Rafael homes for sale
Marinwood homes for sale

About this home

Redfin Estimate

Earn from this home

Market trends in 94903, CA

Sale history for 34 Unionstone Dr

Tax history for 34 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 34 Unionstone Dr

More real estate resources