Google street view image for 21410 Rizzo Ave, Castro Valley, CA 94546

Off market nov 1998 for $225K

$1,029,989

Est. refi paymentEst. refi $1,453/mo

•

1,865

sq ft

21410 Rizzo Ave, Castro Valley, CA 94546

About this home

Single-familyProperty Type

1946Year Built

8,305 sq ftLot Size

$552Est. Price/Sq.Ft.

2 car garageParking

Listed by Norm Nelson •DRE #00953763 • BHG Tri-Valley Realty

Bought with Mary Reynolds •DRE #00614772 • PRUDENTIAL CALIF REALTY

Redfin checked: a minute ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #10521258

Redfin Estimate

$1,029,989

$804K since sold in November 1998$6,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 1.7% lower than the average sale price ($1.05M) of 6 comparable homes.

SOLD JUL 9, 2026
$984,777
A
3 beds2 baths1,650 sq ft
21451 Rizzo Ave, Castro Valley, CA 94546
SOLD JUL 21, 2026
$880,000
B
3 beds2 baths1,476 sq ft
20872 /74 Wilbeam Ave, Castro Valley, CA 94546
BOUGHT WITH REDFIN JUL 21, 2026
$1,400,000
C
4 beds2 baths1,651 sq ft
3445 Badding Rd, Castro Valley, CA 94546
SOLD JUL 24, 2026
$1,175,000
D
4 beds3 baths1,683 sq ft
21132 Tyee Ct, Castro Valley, CA 94546
SOLD JUL 28, 2026
$844,500
E
3 beds2 baths1,586 sq ft
2305 Star Ave, Castro Valley, CA 94546
SOLD JAN 12, 2026
$1,000,000
F
4 beds2 baths1,861 sq ft
2940 Somerset Ave, Castro Valley, CA 94546

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Earn from this home

Sell

$953,915

Est. take-home

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Refinance

Est. cash available

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Rent

$3,875/mo

Redfin rental estimate

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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

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

OPEN WED, 10AM TO 1PM
$1,249,000
3 beds2 baths1,731 sq ft
19431 Garrison Ave, Castro Valley, CA 94546
$549,988
3 beds2 baths1,354 sq ft
21239 Gary Dr #518, Hayward, CA 94546
OPEN SUN, 12PM TO 3PM
$895,000
3 beds2 baths1,509 sq ft
17494 Ehle St, Castro Valley, CA 94546
3D WALKTHROUGH
$699,900
2 beds1 bath1,188 sq ft
2223 Lessley Ave, Castro Valley, CA 94546
$2,600,000
5 beds6 baths4,216 sq ft
4683 Proctor Rd, Castro Valley, CA 94546
$1,490,000
4 beds2 baths1,916 sq ft
4475 Hillsborough Dr, Castro Valley, CA 94546
3D & VIDEO TOUR
$949,000
3 beds2.5 baths1,918 sq ft
20061 Santa Maria Ave, Castro Valley, CA 94546
3D & VIDEO TOUR
$1,188,000
4 beds2.5 baths2,295 sq ft
2783 Jennifer Dr, Castro Valley, CA 94546
OPEN SAT, 2PM TO 4PM
$1,175,000
3 beds2 baths1,795 sq ft
19563 Helen Pl, Castro Valley, CA 94546
$1,200,000
4 beds3 baths1,897 sq ft
18153 Judy St, Castro Valley, CA 94546
See all

Provided by Redfin

Sale history for 21410 Rizzo Ave

Date

Event

Price

bridgeMLS, Bay East AOR, or Contra Costa AOR #28520945

Feb 17, 2015

Listing Removed

—

bridgeMLS, Bay East AOR, or Contra Costa AOR #10520945

Dec 8, 2009

Listing Removed

—

Public Records

Nov 20, 1998

Sold

$226,000

$121/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #10521258

Dec 1, 1998

Sold

$225,950

$121/sq ft

Nov 24, 1998

Listing Removed

—

Oct 12, 1998

Listed

$225,950

$121/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #28521258

Nov 20, 1998

Sold

$225,950

$121/sq ft

Oct 12, 1998

Listing Removed

—

Oct 12, 1998

Listed

$225,950

$121/sq ft

Public Records

Sep 13, 1977

Sold

$68,000

$36/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$5,194 (+2.6%)

$108,410 + $252,797

$361,207

2024

$5,062 (+2.1%)

$106,284 + $247,840

$354,124

2023

$4,960 (+2.4%)

$104,201 + $242,982

$347,183

2022

$4,842 (+1.2%)

$100,155 + $233,548

$333,703

2021

$4,783 (+1.4%)

$100,155 + $233,548

$333,703

2020

$4,717 (−0.7%)

$98,192 + $228,969

$327,161

2019

$4,750 (+6.2%)

$97,185 + $226,622

$323,807

2018

$4,473 (+2.5%)

$95,280 + $222,179

$317,459

2017

$4,363 (+6.1%)

$91,580 + $213,553

$305,133

2016

$4,111 (+2.8%)

$91,580 + $213,553

$305,133

2015

$3,998 (+5.7%)

$89,785 + $209,367

$299,152

2014

$3,784 (+1.4%)

$86,704 + $202,183

$288,887

2013

$3,731 (+2.2%)

$86,704 + $202,183

$288,887

2012

$3,652 (+2.1%)

$86,313 + $201,270

$287,583

2011

$3,578 (+2.2%)

$84,621 + $197,324

$281,945

2010

$3,501 (−1.2%)

$82,962 + $193,455

$276,417

2009

$3,545 (+4.3%)

$82,342 + $192,010

$274,352

2008

$3,399

$82,538 + $192,467

$275,005

Tax history for 21410 Rizzo Ave

Year

Property tax

Land + Additions

Assessment*

2025

$5,194 (+2.6%)

$108,410 + $252,797

$361,207

2024

$5,062 (+2.1%)

$106,284 + $247,840

$354,124

2023

$4,960 (+2.4%)

$104,201 + $242,982

$347,183

2022

$4,842 (+1.2%)

$100,155 + $233,548

$333,703

2021

$4,783 (+1.4%)

$100,155 + $233,548

$333,703

2020

$4,717 (−0.7%)

$98,192 + $228,969

$327,161

2019

$4,750 (+6.2%)

$97,185 + $226,622

$323,807

2018

$4,473 (+2.5%)

$95,280 + $222,179

$317,459

2017

$4,363 (+6.1%)

$91,580 + $213,553

$305,133

2016

$4,111 (+2.8%)

$91,580 + $213,553

$305,133

2015

$3,998 (+5.7%)

$89,785 + $209,367

$299,152

2014

$3,784 (+1.4%)

$86,704 + $202,183

$288,887

2013

$3,731 (+2.2%)

$86,704 + $202,183

$288,887

2012

$3,652 (+2.1%)

$86,313 + $201,270

$287,583

2011

$3,578 (+2.2%)

$84,621 + $197,324

$281,945

2010

$3,501 (−1.2%)

$82,962 + $193,455

$276,417

2009

$3,545 (+4.3%)

$82,342 + $192,010

$274,352

2008

$3,399

$82,538 + $192,467

$275,005

*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
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

8,305 Sq. Ft.

Year renovated

1950

Sq. Ft.

1,865

Year built

1946

Style

Single Family Residential

County

Alameda County

APN

415 006003700

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

Jan 21, 2022 • Final

Residential hvac – replace furnace only

Replace a furnace with a similar unit in the same location.

HVAC

Sep 14, 2020 • Final

Building

Remove and replace a sliding patio door in the kitchen. Perform a full frame tear out with no changes to the opening size.

Remodel

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

Parking

Parking Information
Garage Spaces: 2
Covered Spaces: 2

Interior

Bathroom Information
# of Bathrooms Total: 2
# of Bathrooms Full: 2

Interior Features
Interior Features: Dining Area, Family Room
Appliances: Disposal
Fireplaces Total: 1
Has Fireplace
Flooring: Linoleum, Vinyl, Carpet

Room Information
Kitchen Features: Garbage Disposal
Rooms Total: 8

Exterior

Building Information
Construction Materials: Stucco, Wood Siding
Building Area Total: 1,865

Exterior Features
Patio And Porch Features: Deck
Roof: Shingle

Property Information
Living Area: 1865
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1946

Lot Information
Lot Size Square Feet: 8305
Lot Size Area: 0.19
Lot Size Units: Acres
Lot Size Acres: 0.19

Utilities

Utility Information
Water Source: Public

Heating & Cooling
Has Heating
Heating: Forced Air

Location

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

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 1,865
Stories: 1.0
Lot Size: 8,305 square feet
Style: Single Family Residential
Year Built: 1946
Year Renovated: 1950
County: Alameda County
APN: 415 006003700

Home facts updated by county records on Sep 16, 2026

Around this home

Schools

Fairview Elementary School

Public K-6 • Assigned • 1.6mi

2/10

Bret Harte Middle School

Public 7-8 • Assigned • 1.4mi

4/10

Hayward High School

Public 9-12 • Assigned • 1.4mi

5/10

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...
3 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

$979,000 – $1.19M

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Home values near 21410 Rizzo Ave

Data from public records.

Address	Redfin Estimate
21446 Rizzo Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 1552 Sq. Ft.	$904,228
21360 Rizzo Avenue, Castro Valley, CA 3 Beds \| 2 Baths \| 1371 Sq. Ft.	$975,169

Address	Redfin Estimate
21366 Rizzo Avenue, Castro Valley, CA 3 Beds \| 1 Baths \| 1531 Sq. Ft.	$887,629
21337 Rizzo Avenue, Castro Valley, CA 3 Beds \| 1 Baths \| 1100 Sq. Ft.	$899,408

Address	Redfin Estimate
21433 Rizzo Avenue, Castro Valley, CA 3 Beds \| 1 Baths \| 1277 Sq. Ft.	$895,281
21367 Rizzo Avenue, Castro Valley, CA 3 Beds \| 1 Baths \| 1245 Sq. Ft.	$883,368

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 1998. 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 21410 Rizzo Ave

Tax history for 21410 Rizzo Ave

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 21410 Rizzo Ave

More real estate resources