Google street view image for 21656 Shadyspring Rd, Castro Valley, CA 94546

Off Market Dec 1998 for $255K

$1,247,213

Est. refi paymentEst. refi $1,489/mo

•

3 ba

•

2,485

sq ft

21656 Shadyspring Rd, Castro Valley, CA 94546

About this home

21656 Shadyspring Rd is a 2,485 square foot house on a 7,044 square foot lot with 4 bedrooms and 3 bathrooms. - it last sold on December 14, 1998 for $255,000. Based on Redfin's Castro Valley data, we estimate the home's value is $1,247,213.

Single-familyProperty Type

1979Year Built

7,044 sq ftLot Size

$502Est. Price/Sq.Ft.

2 car garageParking

Source:Public Records

Redfin Estimate

$1,247,213

$992K since sold in December 1998$17K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 20.5% higher than the average sale price ($1.04M) of 6 comparable homes.

SOLD SEP 11, 2026
$1,170,000
A
4 beds3 baths2,474 sq ft
21714 Shadyspring Rd, Castro Valley, CA 94546
SOLD MAY 22, 2026
$1,075,000
B
3 beds2 baths1,876 sq ft
21723 Shadyspring Rd, Castro Valley, CA 94546
SOLD SEP 16, 2026
$920,000
C
3 beds2.5 baths1,632 sq ft
21671 Shady Spring Rd, Castro Valley, CA 94546
SOLD MAR 27, 2026
$825,000
D
3 beds2 baths1,557 sq ft
1516 Grove Way, Castro Valley, CA 94546
SOLD JUL 9, 2026
$984,777
E
3 beds2 baths1,650 sq ft
21451 Rizzo Ave, 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

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

Earn from this home

Sell

$1,155,734

Est. take-home

List your home with Redfin and save $6,236

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$4,712/mo

Redfin rental estimate

List your home for rent

Market trends in 94546, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

104.3%

+0.4% MoM

Median sale price

$1.1M

$27K MoM

Avg. days on market

15d

1 days MoM

Recently sold homes

14 MoM

New listings for sale

NEW 22 HRS AGO
$425,000
2 beds2 baths1,100 sq ft
21314 Gary Dr #314, Hayward, CA 94546
OPEN TODAY, 1PM TO 4PM
$1,198,000
5 beds3 baths2,379 sq ft
2843 Jennifer Dr, Castro Valley, CA 94546
$459,000
2 beds2 baths936 sq ft
21379 Gary Dr #14, Castro Valley, CA 94546
OPEN TODAY, 2PM TO 4PM
$998,000
4 beds2 baths1,665 sq ft
16972 Rolando Ave, Castro Valley, CA 94546
OPEN TODAY, 1PM TO 4PM
$1,180,000
5 beds4 baths1,934 sq ft
3270 Keith Ave, Castro Valley, CA 94546
OPEN TODAY, 1PM TO 4PM
$625,000
2 beds2 baths1,146 sq ft
20223 Santa Maria Ave, Castro Valley, CA 94546
OPEN SUN, 2PM TO 4PM
$449,000
2 beds2 baths1,100 sq ft
21103 Gary Unit 318A, Castro Valley, CA 94546
OPEN TODAY, 1PM TO 4PM
$1,088,888
3 beds2 baths1,599 sq ft
4884 Larimer Way, Castro Valley, CA 94546
OPEN TODAY, 1:30PM TO 4PM
$750,000
2 beds1 bath906 sq ft
17198 Roberto St, Castro Valley, CA 94546
OPEN TODAY, 1PM TO 4PM
$1,899,900
4 beds2.5 baths3,064 sq ft
4571 Ewing Rd, Castro Valley, CA 94546
See all

Provided by Redfin

Sale history for 21656 Shadyspring Rd

Year

Property tax

Land + Additions

Assessment*

2025

$6,656 (+2.6%)

$148,163 + $345,715

$493,878

2024

$6,489 (+2.0%)

$145,259 + $338,938

$484,197

2023

$6,364 (+2.4%)

$142,411 + $332,293

$474,704

2022

$6,215 (+1.2%)

$136,882 + $319,392

$456,274

2021

$6,144 (−27.7%)

$136,882 + $319,392

$456,274

2020

$8,502 (−6.9%)

$134,199 + $313,131

$447,330

2019

$9,133 (+4.2%)

$132,823 + $309,922

$442,745

2018

$8,766 (+1.7%)

$130,219 + $303,846

$434,065

2017

$8,623 (+3.8%)

$125,164 + $292,050

$417,214

2016

$8,304 (+61.6%)

$125,164 + $292,050

$417,214

2015

$5,138 (+5.7%)

$122,710 + $286,325

$409,035

2014

$4,861 (+1.2%)

$118,500 + $276,500

$395,000

2013

$4,802 (+2.1%)

$118,500 + $276,500

$395,000

2012

$4,701 (+1.7%)

$117,965 + $275,251

$393,216

2011

$4,623 (+2.2%)

$115,652 + $269,855

$385,507

2010

$4,523 (−1.4%)

$113,384 + $264,564

$377,948

2009

$4,585 (+4.0%)

$112,538 + $262,588

$375,126

2008

$4,409

$112,805 + $263,212

$376,017

Tax history for 21656 Shadyspring Rd

Year

Property tax

Land + Additions

Assessment*

2025

$6,656 (+2.6%)

$148,163 + $345,715

$493,878

2024

$6,489 (+2.0%)

$145,259 + $338,938

$484,197

2023

$6,364 (+2.4%)

$142,411 + $332,293

$474,704

2022

$6,215 (+1.2%)

$136,882 + $319,392

$456,274

2021

$6,144 (−27.7%)

$136,882 + $319,392

$456,274

2020

$8,502 (−6.9%)

$134,199 + $313,131

$447,330

2019

$9,133 (+4.2%)

$132,823 + $309,922

$442,745

2018

$8,766 (+1.7%)

$130,219 + $303,846

$434,065

2017

$8,623 (+3.8%)

$125,164 + $292,050

$417,214

2016

$8,304 (+61.6%)

$125,164 + $292,050

$417,214

2015

$5,138 (+5.7%)

$122,710 + $286,325

$409,035

2014

$4,861 (+1.2%)

$118,500 + $276,500

$395,000

2013

$4,802 (+2.1%)

$118,500 + $276,500

$395,000

2012

$4,701 (+1.7%)

$117,965 + $275,251

$393,216

2011

$4,623 (+2.2%)

$115,652 + $269,855

$385,507

2010

$4,523 (−1.4%)

$113,384 + $264,564

$377,948

2009

$4,585 (+4.0%)

$112,538 + $262,588

$375,126

2008

$4,409

$112,805 + $263,212

$376,017

*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

Property details

Interior

Room Information
# of Rooms: 8

Exterior

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

Property Information
Living Sq. Ft: 2,485
Building Sq. Ft: 2,485
# of Units: 1
# of Stories: 1
Legal Description: TRACT 2356 BLK 1 LOT 2

Parking & Garage Information
# of Parking Spaces: 2

Lot Information
# of Buildings: 1
Land Sq. Ft: 7,044
Legal Lot Number: 2
Legal Block Number: 1
Municipality Name: HAYWARD UNINCORP
Acres: 0.1617
County Use Description: SINGLE FAMILY RESIDENTIAL HOME

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,485
Stories: 1.0
Lot Size: 7,044 square feet
Style: Single Family Residential
Year Built: 1979
Year Renovated: 1980
County: Alameda County
APN: 415 020001500

Home facts updated by county records on Sep 16, 2026

Around this home

Schools

Fairview Elementary School

Public K-6 • Assigned • 1.7mi

2/10

Bret Harte Middle School

Public 7-8 • Assigned • 1.1mi

4/10

Hayward High School

Public 9-12 • Assigned • 1.3mi

5/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Castro Valley is moving at a brisk pace this summer! Median prices are holding steady around $1.2M, but well-priced, turnkey homes are flying off the market in under 15 days, often over asking. Inventory is moving fast, so buyers must come prepared...
4 weeks ago • Castro Valley
Johnny Singh
Redfin Premier agent
148 deals
Was this helpful?

Climate risks

1/10 Flood Factor

Minimal risk 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

4/10 Heat Factor

7 days above 88° expected this year, 14 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

Reach more buyers when you sell with Redfin. Save up to $12,472 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

$899,999

3 beds1 bath1,288 sq ft

21968 Orange Ave, Castro Valley, CA 94546

$1,186,900

4 beds2 baths1,746 sq ft

22505 Ralston Pl, Fairview, CA 94541

OPEN TODAY, 1PM TO 4PM3D WALKTHROUGH

$849,500

3 beds2 baths1,476 sq ft

22389 Moyers St, Castro Valley, CA 94546

$1,100,000

4 beds3 baths2,151 sq ft

2241 Kelly St, Hayward, CA 94541

3D WALKTHROUGH

$1,099,999

3 beds2.5 baths2,154 sq ft

23661 Glenbrook Ln, Hayward, CA 94541

$1,200,000

4 beds2 baths1,966 sq ft

2175 Grove Way, Castro Valley, CA 94546

Innovative Realty

New listings for sale in 94546

NEW 22 HRS AGO

$425,000

2 beds2 baths1,100 sq ft

21314 Gary Dr #314, Hayward, CA 94546

OPEN TODAY, 1PM TO 4PM

$1,198,000

5 beds3 baths2,379 sq ft

2843 Jennifer Dr, Castro Valley, CA 94546

$459,000

2 beds2 baths936 sq ft

21379 Gary Dr #14, Castro Valley, CA 94546

OPEN TODAY, 2PM TO 4PM3D & VIDEO TOUR

$998,000

4 beds2 baths1,665 sq ft

16972 Rolando Ave, Castro Valley, CA 94546

OPEN TODAY, 1PM TO 4PM3D & VIDEO TOUR

$1,180,000

5 beds4 baths1,934 sq ft

3270 Keith Ave, Castro Valley, CA 94546

OPEN TODAY, 1PM TO 4PM

$625,000

2 beds2 baths1,146 sq ft

20223 Santa Maria Ave, Castro Valley, CA 94546

OPEN SUN, 2PM TO 4PM3D WALKTHROUGH

$449,000

2 beds2 baths1,100 sq ft

21103 Gary Unit 318A, Castro Valley, CA 94546

OPEN TODAY, 1PM TO 4PMVIDEO TOUR

$1,088,888

3 beds2 baths1,599 sq ft

4884 Larimer Way, Castro Valley, CA 94546

OPEN TODAY, 1:30PM TO 4PMVIDEO TOUR

$750,000

2 beds1 bath906 sq ft

17198 Roberto St, Castro Valley, CA 94546

Home values near 21656 Shadyspring Rd

Data from public records.

Address	Redfin Estimate
21694 Shadyspring Road, Castro Valley, CA 3 Beds \| 3 Baths \| 2456 Sq. Ft.	$1,362,666
21663 Shadyspring Road, Castro Valley, CA - Beds \| - Baths \| 1812 Sq. Ft.	$1,012,937

Address	Redfin Estimate
21623 Shadyspring Road, Castro Valley, CA 3 Beds \| 2 Baths \| 2246 Sq. Ft.	$1,268,319
21683 Shadyspring Road, Castro Valley, CA 3 Beds \| 2 Baths \| 2372 Sq. Ft.	$1,264,582

Address	Redfin Estimate
21651 Shadyspring Road, Castro Valley, CA 3 Beds \| 2 Baths \| 2517 Sq. Ft.	$1,325,537
21639 Shadyspring Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1944 Sq. Ft.	$1,242,484

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.

94552 homes for sale
94544 homes for sale
94546 homes for sale
94580 homes for sale
94583 homes for sale

Houses for rent in Castro Valley	Agents near me	Irvine, CA homes for sale	Castro Valley Housing Market
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	Castro Valley Property Records
Condos for sale near me	San Jose, CA homes for sale	CA New Listings

San Jose homes for sale
San Francisco homes for sale
Fremont homes for sale

About this home

Redfin Estimate

Earn from this home

Market trends in 94546, CA

Sale history for 21656 Shadyspring Rd

Tax history for 21656 Shadyspring 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 21656 Shadyspring Rd

More real estate resources