Google street view image for 3979 Westbury Rd, Castro Valley, CA 94546

Off market aug 2020 for $910K

$1,231,423

Est. refi paymentEst. refi $6,004/mo

•

1,932

sq ft

3979 Westbury Rd, Castro Valley, CA 94546

About this home

3979 Westbury Rd is a 1,932 square foot house on a 5,400 square foot lot with 4 bedrooms and 2 bathrooms. - it last sold on August 04, 2020 for $910,000. Based on Redfin's Castro Valley data, we estimate the home's value is $1,231,423.

Single-familyProperty Type

1934Year Built

5,400 sq ftLot Size

$637Est. Price/Sq.Ft.

1 car garageParking

Source:Public Records

Redfin Estimate

$1,231,423

$321K since sold in August 2020$3,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 0.2% higher than the average sale price ($1.23M) of 6 comparable homes.

SOLD JUL 23, 2026
$1,125,000
A
3 beds2 baths1,803 sq ft
3781 Cottage Ct, Castro Valley, CA 94546
BOUGHT WITH REDFIN JUL 21, 2026
$1,400,000
B
4 beds2 baths1,651 sq ft
3445 Badding Rd, Castro Valley, CA 94546
BOUGHT WITH REDFIN SEP 30, 2026
$1,175,000
C
3 beds2 baths1,440 sq ft
19453 Vaughn Ave, Castro Valley, CA 94546
Pacific Home Brokers
SOLD MAY 12, 2026
$1,430,000
D
3 beds2 baths1,528 sq ft
19113 San Miguel Ave, Castro Valley, CA 94546
SOLD MAY 12, 2026
$1,025,000
E
4 beds2 baths1,804 sq ft
18425 Pepper St, Castro Valley, CA 94546
SOLD JUN 23, 2026
$1,220,000
F
4 beds2 baths1,888 sq ft
17676 Garland Ct, Castro Valley, CA 94546

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Earn from this home

Sell

$528,773

Est. take-home

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Refinance

Est. cash available

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Rent

$3,456/mo

Redfin rental estimate

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Market trends in 94546, CA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

103.4%

0.6% MoM

Median sale price

$1.1M

$823 MoM

Avg. days on market

18d

3 days MoM

Recently sold homes

7 MoM

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See all

Provided by Redfin

Sale history for 3979 Westbury Rd

Year

Property tax

Land + Additions

Assessment*

2025

$12,492 (+2.2%)

$301,408 + $703,286

$1,004,694

2024

$12,221 (+1.5%)

$295,500 + $689,501

$985,001

2023

$12,034 (+1.9%)

$289,707 + $675,984

$965,691

2022

$11,812 (+2.6%)

$278,460 + $649,740

$928,200

2021

$11,513 (+689.1%)

$278,460 + $649,740

$928,200

2020

$1,459 (−0.8%)

$273,000 + $637,000

$910,000

2019

$1,471 (+3.1%)

$35,869 + $34,973

$70,842

2018

$1,426 (+3.0%)

$35,166 + $34,287

$69,453

2017

$1,385 (+5.2%)

$33,801 + $32,956

$66,757

2016

$1,316 (+7.0%)

$33,801 + $32,956

$66,757

2015

$1,230 (+3.7%)

$33,138 + $32,310

$65,448

2014

$1,186 (+3.0%)

$32,001 + $31,201

$63,202

2013

$1,151 (+3.1%)

$32,001 + $31,201

$63,202

2012

$1,117 (+1.7%)

$31,856 + $31,060

$62,916

2011

$1,098 (+1.1%)

$31,232 + $30,451

$61,683

2010

$1,086 (+0.8%)

$30,620 + $29,854

$60,474

2009

$1,078 (+7.6%)

$30,391 + $29,631

$60,022

2008

$1,002

$30,463 + $29,701

$60,164

Tax history for 3979 Westbury Rd

Year

Property tax

Land + Additions

Assessment*

2025

$12,492 (+2.2%)

$301,408 + $703,286

$1,004,694

2024

$12,221 (+1.5%)

$295,500 + $689,501

$985,001

2023

$12,034 (+1.9%)

$289,707 + $675,984

$965,691

2022

$11,812 (+2.6%)

$278,460 + $649,740

$928,200

2021

$11,513 (+689.1%)

$278,460 + $649,740

$928,200

2020

$1,459 (−0.8%)

$273,000 + $637,000

$910,000

2019

$1,471 (+3.1%)

$35,869 + $34,973

$70,842

2018

$1,426 (+3.0%)

$35,166 + $34,287

$69,453

2017

$1,385 (+5.2%)

$33,801 + $32,956

$66,757

2016

$1,316 (+7.0%)

$33,801 + $32,956

$66,757

2015

$1,230 (+3.7%)

$33,138 + $32,310

$65,448

2014

$1,186 (+3.0%)

$32,001 + $31,201

$63,202

2013

$1,151 (+3.1%)

$32,001 + $31,201

$63,202

2012

$1,117 (+1.7%)

$31,856 + $31,060

$62,916

2011

$1,098 (+1.1%)

$31,232 + $30,451

$61,683

2010

$1,086 (+0.8%)

$30,620 + $29,854

$60,474

2009

$1,078 (+7.6%)

$30,391 + $29,631

$60,022

2008

$1,002

$30,463 + $29,701

$60,164

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

Zoning and permits

Zoning
Permits

Single-Family Residence Districts

Single-family residence districts, hereinafter designated as R-1 districts, are established to provide for and protect established neighborhoods of one-family dwellings, and to provide space in suitable locations for additional development of this kind, together with appropriate community facilities and allowance for restricted interim cultivation of the soil compatible with such low-density residential development.

Permitted uses

Include but are not limited to:

Housing-Single unit
Agriculture-Cropland
Agriculture-Grove / orchard

Feb 21, 2024 • Final

Building

Replace two condensers and relocate two air handlers in the attic and under the house.

HVAC

Jun 22, 2023 • Final

Building

Install a roof-mounted solar photovoltaic system and a new electrical panel.

Battery

Electrical

Solar

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Interior

Room Information
# of Rooms: 8

Exterior

Exterior Information
Building Style Type: L-Shape
Construction Type: Wood
Building Construction Quality: Average

Property Information
Living Sq. Ft: 1,932
Building Sq. Ft: 1,932
# of Units: 1
# of Stories: 2

Parking & Garage Information
# of Parking Spaces: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 5,400
Legal Lot Number: 1
Legal Block Number: 2
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.124
County Use Description: SINGLE FAMILY RESIDENTIAL HOME

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 1,932
Stories: 2.0
Parking Spaces: 1
Basement: No
Accessible: No
Lot Size: 5,400 square feet
Style: Single Family Residential
Year Built: 1934
Year Renovated: 1940
County: Alameda County
APN: 084D134204800
HOA Dues: —
Garage: Yes
Features: —

Home facts updated by owner on Feb 27, 2022

Around this home

Schools

K - 12
Preschool & daycare

Chabot Elementary School

Public K-5 • Assigned • 0.5mi

9/10

Creekside Middle School

Public 6-8 • Assigned • 1.3mi

10/10

Castro Valley High School

Public 9-12 • Assigned • 0.4mi

9/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Castro Valley remains a highly competitive market. On average, homes are selling for 103.7% of their asking price, with nearly 60% of properties closing above list price.
3 weeks ago • Castro Valley
Karan Kandel
Redfin agent
12 deals
Was this helpful?
Castro Valley's fall market offers great buyer leverage. While median prices hold steady around $1.2M, increased inventory gives you room to negotiate on homes needing updates. Turnkey properties still move fast in under 15 days, so act quickly with...
1 month ago • Castro Valley
Johnny Singh
Redfin Premier agent
139 deals
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Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

3/10 Fire Factor

0.62% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 88° expected this year, 15 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

12 unhealthy days expected this year, 12 days in 30 years

Provided by First Street

Historical weather

Castro Valley, CA • 94546

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 11.2 hours in June and 4.9 hours in December, placing it above the U.S. average for solar exposure.

11.2 hrs

4.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.17M – $1.42M

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Home values near 3979 Westbury Rd

Data from public records.

Address	Redfin Estimate
3987 Westbury Road, Castro Valley, CA 3 Beds \| 3 Baths \| 1242 Sq. Ft.	$1,193,987
3970 Westbury Road, Castro Valley, CA 3 Beds \| 3 Baths \| 1963 Sq. Ft.	$1,166,192
4053 Milton Avenue, Castro Valley, CA 4 Beds \| 2.5 Baths \| 1940 Sq. Ft.	$1,281,460
18962 Vaughn Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 1347 Sq. Ft.	$1,055,154
18977 Thornbury Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 1383 Sq. Ft.	$1,177,256
18944 Thornbury Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 1275 Sq. Ft.	$979,637
3840 Wilson Avenue, Castro Valley, CA - Beds \| 5 Baths \| 3467 Sq. Ft.	$1,322,914

Address	Redfin Estimate
3960 Westbury Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1630 Sq. Ft.	$1,290,134
3982 Westbury Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1868 Sq. Ft.	$1,089,472
18969 Thornbury Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 1336 Sq. Ft.	$1,168,787
4023 Milton Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 1456 Sq. Ft.	$1,087,508
18970 Vaughn Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 1324 Sq. Ft.	$1,008,442
18960 Thornbury Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 2153 Sq. Ft.	$1,177,545
3864 Wilson Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 1321 Sq. Ft.	$1,343,067

Address	Redfin Estimate
3973 Westbury Road, Castro Valley, CA 3 Beds \| 3 Baths \| 2024 Sq. Ft.	$1,286,053
18986 Vaughn Avenue, Castro Valley, CA 4 Beds \| 3 Baths \| 1967 Sq. Ft.	$1,177,506
18985 Thornbury Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 1194 Sq. Ft.	$903,310
18945 Thornbury Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 1432 Sq. Ft.	$1,248,003
3856 Wilson Avenue, Castro Valley, CA 2 Beds \| 2 Baths \| 1232 Sq. Ft.	$821,863
4005 Milton Avenue, Castro Valley, CA 4 Beds \| 3 Baths \| 2054 Sq. Ft.	$1,151,376
18968 Thornbury Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 1194 Sq. Ft.	$1,093,953

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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 94546, CA

Sale history for 3979 Westbury Rd

Tax history for 3979 Westbury Rd

Zoning and permits

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94546

Home values near 3979 Westbury Rd

More real estate resources