Google street view image for 20211 W Ridge Ct, Castro Valley, CA 94546

Off market oct 1988 for $275K

$1,247,789

Est. refi paymentEst. refi $1,882/mo

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— ba

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2,724

sq ft

20211 W Ridge Ct, Castro Valley, CA 94546

About this home

20211 W Ridge Ct is a 2,724 square foot house on a 5,449 square foot lot. - it last sold on October 07, 1988 for $275,000. Based on Redfin's Castro Valley data, we estimate the home's value is $1,247,789.

Single-familyProperty Type

1980Year Built

5,449 sq ftLot Size

$458Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,247,789

$973K since sold in October 1988$8,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.2% higher than the average sale price ($1.20M) of 6 comparable homes.

SOLD AUG 31, 2026
$1,100,000
A
3 beds2 baths2,008 sq ft
19574 Stanton Ave, Castro Valley, CA 94546
SOLD MAR 17, 2026
$975,000
B
3 beds3 baths2,124 sq ft
20024 Zeno St, Castro Valley, CA 94546
Professional Realty Associates
SOLD AUG 31, 2026
$1,200,000
C
3 beds2.5 baths1,887 sq ft
2761 Stanton Heights Ct, Castro Valley, CA 94546
SOLD AUG 20, 2026
$1,115,600
D
3 beds2.5 baths2,308 sq ft
16645 Cowell St, Castro Valley, CA 94578
SOLD APR 21, 2026
$1,560,000
E
4 beds3 baths2,208 sq ft
2392 Austin Ct, Castro Valley, CA 94546
SOLD JUL 27, 2026
$1,236,737
F
4 beds2.5 baths2,528 sq ft
16683 Kildare Rd, Castro Valley, CA 94578

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Earn from this home

Sell

$1,181,280

Est. take-home

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Refinance

Est. cash available

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Market trends in 94546, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

104.0%

+0.4% MoM

Median sale price

$1.1M

$30K MoM

Avg. days on market

15d

1 days MoM

Recently sold homes

15 MoM

New listings for sale

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19563 Helen Pl, Castro Valley, CA 94546
$1,200,000
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18153 Judy St, Castro Valley, CA 94546
OPEN SAT, 1PM TO 4PM
$799,888
3 beds1 bath988 sq ft
2240 Lessley Ave, Castro Valley, CA 94546
$499,000
3 beds2 baths1,354 sq ft
21314 Gary Dr #108, Hayward, CA 94546
$1,498,000
4 beds3 baths3,275 sq ft
19912 Conrad Ct, Castro Valley, CA 94546
OPEN SUN, 1PM TO 4PM
$1,198,000
4 beds2.5 baths2,038 sq ft
3636 Arcadian Dr, Castro Valley, CA 94546
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21968 Orange Ave, Castro Valley, CA 94546
EARLY ACCESS
$550,000
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21239 Gary Dr #206, Hayward, CA 94546
$429,000
2 beds2 baths899 sq ft
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COMING SOON
5032 Vannoy Ave, Castro Valley, CA 94546
$1,250,000
4 beds2 baths1,860 sq ft
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See all

Provided by Redfin

Sale history for 20211 W Ridge Ct

Year

Property tax

Land + Additions

Assessment*

2025

$6,876 (+2.4%)

$181,833 + $344,527

$526,360

2024

$6,717 (+1.8%)

$178,268 + $337,771

$516,039

2023

$6,600 (+2.1%)

$174,773 + $331,149

$505,922

2022

$6,466 (+2.7%)

$167,987 + $318,292

$486,279

2021

$6,297 (+2.4%)

$167,987 + $318,292

$486,279

2020

$6,152 (−1.7%)

$164,693 + $312,051

$476,744

2019

$6,260 (+2.9%)

$163,005 + $308,853

$471,858

2018

$6,081 (+2.7%)

$159,809 + $302,797

$462,606

2017

$5,920 (+5.1%)

$153,605 + $291,042

$444,647

2016

$5,632 (+7.0%)

$153,605 + $291,042

$444,647

2015

$5,263 (+1.4%)

$150,594 + $285,336

$435,930

2014

$5,192 (+0.9%)

$145,426 + $275,545

$420,971

2013

$5,147 (+2.1%)

$145,426 + $275,545

$420,971

2012

$5,040 (+1.4%)

$144,770 + $274,302

$419,072

2011

$4,971 (+0.7%)

$141,931 + $268,923

$410,854

2010

$4,935 (−0.4%)

$139,149 + $263,651

$402,800

2009

$4,954 (+3.5%)

$138,110 + $261,682

$399,792

2008

$4,789

$138,438 + $262,305

$400,743

Tax history for 20211 W Ridge Ct

Year

Property tax

Land + Additions

Assessment*

2025

$6,876 (+2.4%)

$181,833 + $344,527

$526,360

2024

$6,717 (+1.8%)

$178,268 + $337,771

$516,039

2023

$6,600 (+2.1%)

$174,773 + $331,149

$505,922

2022

$6,466 (+2.7%)

$167,987 + $318,292

$486,279

2021

$6,297 (+2.4%)

$167,987 + $318,292

$486,279

2020

$6,152 (−1.7%)

$164,693 + $312,051

$476,744

2019

$6,260 (+2.9%)

$163,005 + $308,853

$471,858

2018

$6,081 (+2.7%)

$159,809 + $302,797

$462,606

2017

$5,920 (+5.1%)

$153,605 + $291,042

$444,647

2016

$5,632 (+7.0%)

$153,605 + $291,042

$444,647

2015

$5,263 (+1.4%)

$150,594 + $285,336

$435,930

2014

$5,192 (+0.9%)

$145,426 + $275,545

$420,971

2013

$5,147 (+2.1%)

$145,426 + $275,545

$420,971

2012

$5,040 (+1.4%)

$144,770 + $274,302

$419,072

2011

$4,971 (+0.7%)

$141,931 + $268,923

$410,854

2010

$4,935 (−0.4%)

$139,149 + $263,651

$402,800

2009

$4,954 (+3.5%)

$138,110 + $261,682

$399,792

2008

$4,789

$138,438 + $262,305

$400,743

*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

RSL

Residential Small Lot Districts

Residential Small Lot districts, hereinafter designated as RSL, are established to support infill projects of duplexes, small lot single-family detached units, and townhouses. The RSL district implements and is consistent with the residential small lot land use classification of the Castro Valley General Plan.

Permitted uses

Include but are not limited to:

Agriculture-Other
Housing-Single unit
Housing-Multiple units
Agriculture-Cropland
Agriculture-Grove / orchard / vineyard

Mar 5, 2026 • Final

Building

Install a roof-mounted solar photovoltaic system and an energy storage system with batteries.

Battery

Electrical

Solar

Apr 22, 2003 • Final

Building

Remove one layer of wood shake roofing and replace it with a new composition roof.

Roofing

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

Exterior

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

Property Information
Living Sq. Ft: 2,724
Building Sq. Ft: 2,724
# of Units: 1
Legal Description: PARCEL MAPS 2570 LOT A

Lot Information
# of Buildings: 1
Land Sq. Ft: 5,449
Legal Lot Number: A
Municipality Name: CASTRO VALLEY UNINCORP
Acres: 0.1251
County Use Description: SINGLE FAMILY RESIDENTIAL HOME

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: —
Baths: —
Sq. Ft.: 2,724
Stories: —
Lot Size: 5,449 square feet
Style: Single Family Residential
Year Built: 1980
Year Renovated: 1982
County: Alameda County
APN: 084A025004600

Home facts updated by county records on Sep 17, 2026

Around this home

Schools

Stanton Elementary School

Public K-5 • Assigned • 0.3mi

6/10

Creekside Middle School

Public 6-8 • Assigned • 1.9mi

10/10

Castro Valley High School

Public 9-12 • Assigned • 1.2mi

9/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

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...
2 weeks ago • Castro Valley
Johnny Singh
Redfin Premier agent
148 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

0.31% chance of being in a wildfire in next 30 years

3/10 Heat Factor

7 days above 88° expected this year, 13 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

$1.19M – $1.44M

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New listings for sale in 94546

OPEN TODAY, 3PM TO 5PM

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4 beds3 baths1,897 sq ft

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OPEN SAT, 1PM TO 4PM

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EARLY ACCESSCOMPASS COMING SOON

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Home values near 20211 W Ridge Ct

Data from public records.

Address	Redfin Estimate
20210 W Ridge Court, Castro Valley, CA 3 Beds \| 2.5 Baths \| 2500 Sq. Ft.	$1,395,811
20111 W Ridge Court Unit 8, Castro Valley, CA 2 Beds \| 2.5 Baths \| 1467 Sq. Ft.	$634,376

Address	Redfin Estimate
20111 W Ridge Court Unit 1, Castro Valley, CA 2 Beds \| 2.5 Baths \| 1467 Sq. Ft.	$654,406
20111 W Ridge Court Unit 2, Castro Valley, CA 2 Beds \| 2.5 Baths \| 1467 Sq. Ft.	$652,119

Address	Redfin Estimate
20111 W Ridge Court Unit 30, Castro Valley, CA 2 Beds \| 3 Baths \| 1467 Sq. Ft.	$632,092
20111 W Ridge Court Unit 13, Castro Valley, CA 2 Beds \| 2.5 Baths \| 1440 Sq. Ft.	$697,644

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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 20211 W Ridge Ct

Tax history for 20211 W Ridge Ct

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 20211 W Ridge Ct

More real estate resources