OFF MARKET

Off Market Sep 2009 for $570K

$1,403,980

Est. refi paymentEst. refi $3,578/mo

•

2,456

sq ft

21706 Shadyspring Rd, Castro Valley, CA 94546

About this home

Single-familyProperty Type

1976Year Built

6,500 sq ftLot Size

$572Est. Price/Sq.Ft.

2 car garageParking

Listed by Scott Summers •DRE #01489110 • Keller Williams Realty

Listed by Keith Brown •DRE #01441505 • Keller Williams Realty

Bought with Out Of Area Non Member • Bay East AOR

Redfin checked: 2 minutes ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40418274

Redfin Estimate

$1,403,980

$834K since sold in September 2009$1,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 40.6% higher than the average sale price ($998K) 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 SEP 16, 2026
$920,000
B
3 beds2.5 baths1,632 sq ft
21671 Shady Spring Rd, Castro Valley, CA 94546
SOLD MAY 22, 2026
$1,075,000
C
3 beds2 baths1,876 sq ft
21723 Shadyspring Rd, Castro Valley, CA 94546
SOLD SEP 1, 2026
$870,000
D
4 beds3 baths1,736 sq ft
2418 Kelly St, Hayward, CA 94541
EXIT Realty Consultants
SOLD JUN 30, 2026
19912 Conrad Ct, Castro Valley, CA 94546
$1,100,000
E
4 beds2.5 baths2,570 sq ft
19912 Conrad Ct, Castro Valley, CA 94546
SOLD SEP 18, 2026
$855,000
F
4 beds3 baths2,000 sq ft
22843 2nd St, Hayward, CA 94541
Realty ONE Group Zoom, Real Brokerage Technologies

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Earn from this home

Sell

$1,067,271

Est. take-home

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Refinance

Est. cash available

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Rent

$4,708/mo

Redfin rental estimate

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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 21706 Shadyspring Rd

Year

Property tax

Land + Additions

Assessment*

2025

$9,646 (+2.5%)

$225,128 + $525,299

$750,427

2024

$9,409 (+1.8%)

$220,714 + $515,001

$735,715

2023

$9,239 (+2.3%)

$216,388 + $504,906

$721,294

2022

$9,033 (+1.1%)

$207,987 + $485,303

$693,290

2021

$8,939 (+1.3%)

$207,987 + $485,303

$693,290

2020

$8,825 (−0.8%)

$203,910 + $475,791

$679,701

2019

$8,892 (+6.6%)

$201,821 + $470,915

$672,736

2018

$8,344 (+2.5%)

$197,864 + $461,682

$659,546

2017

$8,138 (+5.9%)

$190,182 + $443,759

$633,941

2016

$7,684 (+2.5%)

$190,182 + $443,759

$633,941

2015

$7,495 (+11.7%)

$186,454 + $435,061

$621,515

2014

$6,710 (+20.2%)

$169,500 + $395,500

$565,000

2013

$5,581 (−0.7%)

$169,500 + $395,500

$565,000

2012

$5,619 (−6.8%)

$139,500 + $325,500

$465,000

2011

$6,029 (−9.3%)

$141,000 + $329,000

$470,000

2010

$6,645 (+236.9%)

$172,287 + $402,004

$574,291

2009

$1,973 (+5.5%)

$171,000 + $399,000

$570,000

2008

$1,870

$30,744 + $109,252

$139,996

Tax history for 21706 Shadyspring Rd

Year

Property tax

Land + Additions

Assessment*

2025

$9,646 (+2.5%)

$225,128 + $525,299

$750,427

2024

$9,409 (+1.8%)

$220,714 + $515,001

$735,715

2023

$9,239 (+2.3%)

$216,388 + $504,906

$721,294

2022

$9,033 (+1.1%)

$207,987 + $485,303

$693,290

2021

$8,939 (+1.3%)

$207,987 + $485,303

$693,290

2020

$8,825 (−0.8%)

$203,910 + $475,791

$679,701

2019

$8,892 (+6.6%)

$201,821 + $470,915

$672,736

2018

$8,344 (+2.5%)

$197,864 + $461,682

$659,546

2017

$8,138 (+5.9%)

$190,182 + $443,759

$633,941

2016

$7,684 (+2.5%)

$190,182 + $443,759

$633,941

2015

$7,495 (+11.7%)

$186,454 + $435,061

$621,515

2014

$6,710 (+20.2%)

$169,500 + $395,500

$565,000

2013

$5,581 (−0.7%)

$169,500 + $395,500

$565,000

2012

$5,619 (−6.8%)

$139,500 + $325,500

$465,000

2011

$6,029 (−9.3%)

$141,000 + $329,000

$470,000

2010

$6,645 (+236.9%)

$172,287 + $402,004

$574,291

2009

$1,973 (+5.5%)

$171,000 + $399,000

$570,000

2008

$1,870

$30,744 + $109,252

$139,996

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

Public record

Public record
Zoning

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

7,778 Sq. Ft.

Year renovated

1977

Sq. Ft.

2,456

Year built

1976

Style

Single Family Residential

County

Alameda County

APN

415 020001100

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 16, 2026.

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

Parking

Parking Information
Has Attached Garage
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached, Garage Door Opener

Interior

Virtual Tour

Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 3
Other Bathrooms Included Features: Sunken Tub
Primary Bathroom Included Features: Stall Shower

Interior Features
Interior Features: Dining Area, Family Room, Solarium, Stone Counters, Updated Kitchen
Appliances: Dishwasher, Double Oven, Self Cleaning Oven, Gas Water Heater
Laundry Features: 220 Volt Outlet, In Unit
Upper Level Features: 2 Bedrooms
Street Level Features: 2 Bedrooms
Window Features: Window Coverings
Fireplaces Total: 1
Has Fireplace
Flooring: Vinyl, Carpet

Room Information
Kitchen Features: 220 Volt Outlet,Counter - Stone,Dishwasher,Double Oven,Self-Cleaning Oven,Updated Kitchen
Rooms Total: 9
Fireplace Features: Brick
Basement: Crawl Space

Exterior

Building Information
Construction Materials: Stucco
Building Area Total: 2,456

Exterior Features
Exterior Features: Sprinklers Back, Sprinklers Front
Door Features: Mirrored Closet Door(s)
Roof: Shingle

Property Information
Living Area: 2456
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1976

Lot Information
Lot Size Square Feet: 6500
Lot Size Units: Acres
Lot Features: Sloped Down
Zoning: 1001

Utilities

Utility Information
Water Source: Public
Electric: 220 Volts in Kitchen
Sewer: Public Sewer

Heating & Cooling
Has Heating
Heating: Natural Gas
Cooling: Central Air

Location

School Information
High School District: Not Listed

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,456
Stories: 1.0
Lot Size: 7,778 square feet
Style: Single Family Residential
Year Built: 1976
Year Renovated: 1977
County: Alameda County
APN: 415 020001100

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 • 1.2mi

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
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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

$1.33M – $1.62M

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New listings for sale in 94546

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OPEN TODAY, 1PM TO 4PM

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5 beds3 baths2,379 sq ft

2843 Jennifer Dr, Castro Valley, CA 94546

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OPEN TODAY, 2PM TO 4PM3D & VIDEO TOUR

$998,000

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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

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2 beds2 baths1,146 sq ft

20223 Santa Maria Ave, Castro Valley, CA 94546

OPEN SUN, 2PM TO 4PM3D WALKTHROUGH

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2 beds2 baths1,100 sq ft

21103 Gary Unit 318A, Castro Valley, CA 94546

OPEN TODAY, 1PM TO 4PMVIDEO TOUR

$1,088,888

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4884 Larimer Way, Castro Valley, CA 94546

OPEN TODAY, 1:30PM TO 4PMVIDEO TOUR

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Home values near 21706 Shadyspring Rd

Data from public records.

Address	Redfin Estimate
21738 Shadyspring Rd, Castro Valley, CA - Beds \| - Baths \| 2840 Sq. Ft.	$1,106,363
21730 Shadyspring Rd, Castro Valley, CA 3 Beds \| 3 Baths \| 2650 Sq. Ft.	$1,265,274

Address	Redfin Estimate
21715 Shadyspring Rd, Castro Valley, CA 4 Beds \| 3 Baths \| 2270 Sq. Ft.	$1,191,915
21663 Shadyspring Rd, Castro Valley, CA - Beds \| - Baths \| 1812 Sq. Ft.	$1,012,937

Address	Redfin Estimate
21694 Shadyspring Rd, Castro Valley, CA 3 Beds \| 3 Baths \| 2456 Sq. Ft.	$1,362,666
21683 Shadyspring Rd, Castro Valley, CA 3 Beds \| 2 Baths \| 2372 Sq. Ft.	$1,264,582

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2009. This data may not match . Learn more.

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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 21706 Shadyspring Rd

Tax history for 21706 Shadyspring Rd

Public record

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 21706 Shadyspring Rd

More real estate resources