Off market apr 2019 for $650K

$835,035

Est. refi paymentEst. refi $4,338/mo

•

905

sq ft

21732 Ada St, Castro Valley, CA 94546

About this home

Single-familyProperty Type

1948Year Built

5,040 sq ftLot Size

1 car garageParking

Listed by David Wilhite •DRE #00759835 • Intero Real Estate Services

Listed by Paulette Johnson •DRE #02016707 • Intero Real Estate Services

Bought with Jim Oneil •DRE #01501936 • McGuire Real Estate

Redfin checked: a minute ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40855404

Redfin Estimate

$835,035

$185K since sold in April 2019$15K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 7.2% higher than the average sale price ($779K) of 6 comparable homes.

SOLD SEP 10, 2026
$749,888
A
2 beds1 bath1,018 sq ft
2293 Vestal Ave, Castro Valley, CA 94546
SOLD OCT 22, 2026
$822,000
B
2 beds1 bath1,188 sq ft
2220 Farley St, Castro Valley, CA 94546
SOLD AUG 7, 2026
$850,000
C
2 beds1 bath1,018 sq ft
2107 Lessley Ave, Castro Valley, CA 94546
SOLD JUN 5, 2026
$738,000
D
2 beds1 bath825 sq ft
21146 Elm St, Castro Valley, CA 94546
SOLD MAY 28, 2026
$745,000
E
2 beds1 bath1,192 sq ft
2329 Vestal Ave, Castro Valley, CA 94546
SOLD APR 27, 2026
$768,000
F
3 beds1 bath871 sq ft
2226 Vegas Ave, Castro Valley, CA 94546

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Earn from this home

Sell

$350,780

Est. take-home

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Refinance

Est. cash available

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Rent

$3,547/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

New listings for sale

COMING SOON
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OPEN SAT, 1PM TO 4PM
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NEW 9 HRS AGO
$859,000
3 beds2 baths1,597 sq ft
3898 Link Ct, Castro Valley, CA 94546
OPEN SAT, 1PM TO 3PM
$75,000
1 bed1 bath528 sq ft
3913 Castro Valley Blvd #43, Castro Valley, CA 94546
eXp Realty of California Inc.
$799,000
2 beds1 bath902 sq ft
4011 Berdina Rd, Castro Valley, CA 94546
3D WALKTHROUGH
$850,000
2 beds2 baths1,194 sq ft
20114 Normandy Ct, Castro Valley, CA 94546
$899,999
3 beds2 baths1,461 sq ft
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Vista Sotheby's International Realty
COMING SOON
$975,000
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COMING SOON
$1,098,000
3 beds2 baths1,996 sq ft
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See all

Provided by Redfin

Sale history for 21732 Ada St

Date

Event

Price

bridgeMLS, Bay East AOR, or Contra Costa AOR #40855404

Apr 17, 2019

Sold

$650,000

$718/sq ft

Mar 13, 2019

Pending

—

Mar 4, 2019

Listed

bridgeMLS, Bay East AOR, or Contra Costa AOR #11203713

Oct 3, 2003

Sold

$355,000

$392/sq ft

Sep 4, 2003

Listing Removed

—

Aug 31, 2003

Listed

bridgeMLS, Bay East AOR, or Contra Costa AOR #11048823

May 18, 2000

Sold

$230,000

$254/sq ft

Apr 28, 2000

Listing Removed

—

Apr 17, 2000

Listed

Year

Property tax

Land + Additions

Assessment*

2025

$11,253 (+2.5%)

$221,872 + $659,373

$881,245

2024

$10,981 (+1.8%)

$217,522 + $646,445

$863,967

2023

$10,788 (+19.9%)

$213,257 + $633,771

$847,028

2022

$8,997 (+1.0%)

$204,978 + $478,282

$683,260

2021

$8,905 (+1.3%)

$204,978 + $478,282

$683,260

2020

$8,792 (+37.7%)

$200,959 + $468,904

$669,863

2019

$6,386 (+6.4%)

$198,900 + $464,100

$663,000

2018

$6,002 (+2.6%)

$135,735 + $321,111

$456,846

2017

$5,852 (+6.0%)

$130,464 + $308,642

$439,106

2016

$5,520 (+12.8%)

$130,464 + $308,642

$439,106

2015

$4,892 (+6.6%)

$127,906 + $302,590

$430,496

2014

$4,589 (+19.4%)

$111,000 + $259,000

$370,000

2013

$3,844 (+8.2%)

$111,000 + $259,000

$370,000

2012

$3,554 (+0.4%)

$91,500 + $213,500

$305,000

2011

$3,540 (+8.3%)

$84,000 + $196,000

$280,000

2010

$3,269 (−23.1%)

$84,000 + $196,000

$280,000

2009

$4,253 (−7.2%)

$78,000 + $182,000

$260,000

2008

$4,581

$103,800 + $242,200

$346,000

Tax history for 21732 Ada St

Year

Property tax

Land + Additions

Assessment*

2025

$11,253 (+2.5%)

$221,872 + $659,373

$881,245

2024

$10,981 (+1.8%)

$217,522 + $646,445

$863,967

2023

$10,788 (+19.9%)

$213,257 + $633,771

$847,028

2022

$8,997 (+1.0%)

$204,978 + $478,282

$683,260

2021

$8,905 (+1.3%)

$204,978 + $478,282

$683,260

2020

$8,792 (+37.7%)

$200,959 + $468,904

$669,863

2019

$6,386 (+6.4%)

$198,900 + $464,100

$663,000

2018

$6,002 (+2.6%)

$135,735 + $321,111

$456,846

2017

$5,852 (+6.0%)

$130,464 + $308,642

$439,106

2016

$5,520 (+12.8%)

$130,464 + $308,642

$439,106

2015

$4,892 (+6.6%)

$127,906 + $302,590

$430,496

2014

$4,589 (+19.4%)

$111,000 + $259,000

$370,000

2013

$3,844 (+8.2%)

$111,000 + $259,000

$370,000

2012

$3,554 (+0.4%)

$91,500 + $213,500

$305,000

2011

$3,540 (+8.3%)

$84,000 + $196,000

$280,000

2010

$3,269 (−23.1%)

$84,000 + $196,000

$280,000

2009

$4,253 (−7.2%)

$78,000 + $182,000

$260,000

2008

$4,581

$103,800 + $242,200

$346,000

*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

5,040 Sq. Ft.

Year renovated

1951

Sq. Ft.

1,182

Year built

1948

Style

Single Family Residential

County

Alameda County

APN

415 009009200

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
Garage Spaces: 1
Covered Spaces: 1
Parking Features: Attached, Off Street, Garage Door Opener

Interior

Virtual Tour

Bathroom Information
# of Bathrooms Total: 1
# of Bathrooms Full: 1
Other Bathrooms Included Features: Shower Over Tub, Tile, Updated Baths

Interior Features
Interior Features: Dining Area, Breakfast Nook, Updated Kitchen
Appliances: Dishwasher, Gas Range, Range, Refrigerator
Laundry Features: Dryer, In Garage, Washer
Street Level Features: 2 Bedrooms, 1 Bath, Laundry Facility, Main Entry
Flooring: Hardwood, Vinyl

Room Information
Kitchen Features: Breakfast Nook,Stone Counters,Dishwasher,Eat-in Kitchen,Disposal,Gas Range/Cooktop,Range/Oven Built-in,Refrigerator,Updated Kitchen
Rooms Total: 5
Room Type: Dining Area
Basement: Crawl Space

Exterior

Building Information
Construction Materials: Stucco, Wood Siding
Building Area Total: 905
Foundation Details: Raised

Exterior Features
Patio And Porch Features: Deck, Patio
Exterior Features: Back Yard, Front Yard
Fencing: Fenced
Roof: Shingle

Property Information
Living Area: 905
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1948

Lot Information
Lot Size Square Feet: 5040
Lot Size Area: 0.12
Lot Size Units: Acres
Lot Size Acres: 0.12
Lot Features: Level

Utilities

Utility Information
Water Source: Public
Sewer: Public Sewer

Heating & Cooling
Has Heating
Heating: Forced Air

Location

Homeowners Association Information
Pets Allowed: Yes

School Information
High School District: Hayward (510) 784-2600

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 1,182
Stories: 1.0
Lot Size: 5,040 square feet
Style: Single Family Residential
Year Built: 1948
Year Renovated: 1951
County: Alameda County
APN: 415 009009200

Home facts updated by county records on Sep 16, 2026

Around this home

Schools

Fairview Elementary School

Public K-6 • Assigned • 1.3mi

2/10

Bret Harte Middle School

Public 7-8 • Assigned • 1.3mi

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 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.
2 weeks ago • Castro Valley
Karan Kandel
Redfin agent
13 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
150 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

$799,000 – $967,000

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New listings for sale in 94546

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COMING SOON

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Light-filled sunroom • 5,762 sq ft lot • 2 garage spots

COMING SOON

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Home values near 21732 Ada St

Data from public records.

Address	Redfin Estimate
21723 Ada St, Castro Valley, CA 2 Beds \| 1.5 Baths \| 1170 Sq. Ft.	$914,342
21724 Ada St, Castro Valley, CA 3 Beds \| 1 Baths \| 1028 Sq. Ft.	$811,635

Address	Redfin Estimate
21704 Ada St, Castro Valley, CA 2 Beds \| 1 Baths \| 1170 Sq. Ft.	$759,008
21735 Ada St, Castro Valley, CA 3 Beds \| 1 Baths \| 1170 Sq. Ft.	$861,191

Address	Redfin Estimate
21852 Ada St, Castro Valley, CA 2 Beds \| 1 Baths \| 905 Sq. Ft.	$831,311
21738 Ada St, Castro Valley, CA 3 Beds \| 1 Baths \| 1104 Sq. Ft.	$784,521

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2019. 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 21732 Ada St

Tax history for 21732 Ada St

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 21732 Ada St

More real estate resources