OFF MARKET

Off market aug 2015 for $499K

$815,259

Est. refi paymentEst. refi $3,712/mo

•

1,030

sq ft

21349 Rizzo Ave, Castro Valley, CA 94546

About this home

Single-familyProperty Type

1946Year Built

5,150 sq ftLot Size

$792Est. Price/Sq.Ft.

1 car garageParking

Listed by Mike Brewer •DRE #01725064 • Keller Williams Realty

Bought with Mike Brewer •DRE #01725064 • Keller Williams Realty

Redfin checked: a minute ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40704866

Redfin Estimate

$815,259

$316K since sold in August 2015$8,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.9% higher than the average sale price ($763K) 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 AUG 7, 2026
$850,000
B
2 beds1 bath1,018 sq ft
2107 Lessley Ave, Castro Valley, CA 94546
SOLD APR 27, 2026
$768,000
C
3 beds1 bath871 sq ft
2226 Vegas Ave, Castro Valley, CA 94546
SOLD MAY 28, 2026
$745,000
D
2 beds1 bath1,192 sq ft
2329 Vestal Ave, Castro Valley, CA 94546
SOLD OCT 23, 2025
$725,000
E
2 beds1 bath1,048 sq ft
21284 Tyee St, Castro Valley, CA 94546
SOLD JUN 5, 2026
$738,000
F
2 beds1 bath825 sq ft
21146 Elm St, Castro Valley, CA 94546

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Earn from this home

Sell

$470,029

Est. take-home

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Refinance

Est. cash available

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Rent

$2,990/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
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$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 21349 Rizzo Ave

Year

Property tax

Land + Additions

Assessment*

2025

$8,738 (+2.5%)

$199,606 + $465,748

$665,354

2024

$8,523 (+1.8%)

$195,693 + $456,617

$652,310

2023

$8,369 (+2.3%)

$191,856 + $447,664

$639,520

2022

$8,182 (+1.1%)

$184,407 + $430,284

$614,691

2021

$8,096 (+1.3%)

$184,407 + $430,284

$614,691

2020

$7,993 (+9.7%)

$180,791 + $421,847

$602,638

2019

$7,285 (+6.5%)

$178,939 + $417,524

$596,463

2018

$6,842 (+2.5%)

$158,861 + $370,677

$529,538

2017

$6,672 (+6.0%)

$152,694 + $356,286

$508,980

2016

$6,296 (+26.3%)

$152,694 + $356,286

$508,980

2015

$4,986 (+7.4%)

$149,700 + $349,300

$499,000

2014

$4,643 (+15.6%)

$112,469 + $262,427

$374,896

2013

$4,018 (+3.5%)

$112,469 + $262,427

$374,896

2012

$3,880 (+7.9%)

$96,300 + $224,700

$321,000

2011

$3,595 (−7.0%)

$93,000 + $217,000

$310,000

2010

$3,868 (−11.6%)

$85,500 + $199,500

$285,000

2009

$4,374 (+4.0%)

$94,500 + $220,500

$315,000

2008

$4,203

$107,065 + $249,818

$356,883

Tax history for 21349 Rizzo Ave

Year

Property tax

Land + Additions

Assessment*

2025

$8,738 (+2.5%)

$199,606 + $465,748

$665,354

2024

$8,523 (+1.8%)

$195,693 + $456,617

$652,310

2023

$8,369 (+2.3%)

$191,856 + $447,664

$639,520

2022

$8,182 (+1.1%)

$184,407 + $430,284

$614,691

2021

$8,096 (+1.3%)

$184,407 + $430,284

$614,691

2020

$7,993 (+9.7%)

$180,791 + $421,847

$602,638

2019

$7,285 (+6.5%)

$178,939 + $417,524

$596,463

2018

$6,842 (+2.5%)

$158,861 + $370,677

$529,538

2017

$6,672 (+6.0%)

$152,694 + $356,286

$508,980

2016

$6,296 (+26.3%)

$152,694 + $356,286

$508,980

2015

$4,986 (+7.4%)

$149,700 + $349,300

$499,000

2014

$4,643 (+15.6%)

$112,469 + $262,427

$374,896

2013

$4,018 (+3.5%)

$112,469 + $262,427

$374,896

2012

$3,880 (+7.9%)

$96,300 + $224,700

$321,000

2011

$3,595 (−7.0%)

$93,000 + $217,000

$310,000

2010

$3,868 (−11.6%)

$85,500 + $199,500

$285,000

2009

$4,374 (+4.0%)

$94,500 + $220,500

$315,000

2008

$4,203

$107,065 + $249,818

$356,883

*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

5,150 Sq. Ft.

Year renovated

1946

Sq. Ft.

1,075

Year built

1946

Style

Single Family Residential

County

Alameda County

APN

415 006005700

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

Jul 17, 2023 • Final

Building

Relocate and install a new mini-split system and one new electrical circuit.

HVAC

Dec 4, 2015 • Final

Building

Extend electrical circuits for recessed lighting in the kitchen and family room, and for an outlet above the fireplace. Eliminate all exposed wiring.

Electrical

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
Has Attached Garage
Garage Spaces: 1
Covered Spaces: 1
Parking Features: Attached, Parking Lot, Garage Door Opener

Interior

Bathroom Information
# of Bathrooms Total: 1
# of Bathrooms Full: 1

Interior Features
Interior Features: Bonus/Plus Room, Counter - Solid Surface
Appliances: Dishwasher, Double Oven, Gas Water Heater
Laundry Features: 220 Volt Outlet, Gas Dryer Hookup
Street Level Features: 2 Bedrooms, 1 Bath
Window Features: Window Coverings
Fireplaces Total: 1
Has Fireplace
Flooring: Laminate, Carpet

Room Information
Kitchen Features: 220 Volt Outlet,Counter - Solid Surface,Dishwasher,Double Oven
Rooms Total: 5
Fireplace Features: Gas, Gas Starter, Living Room

Exterior

Building Information
Construction Materials: Wood Siding
Building Area Total: 1,030

Exterior Features
Exterior Features: Back Yard, Front Yard
Door Features: Mirrored Closet Door(s)
Fencing: Fenced
Roof: Shingle

Property Information
Living Area: 1030
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1946

Lot Information
Lot Size Square Feet: 5150
Lot Size Area: 0.118
Lot Size Units: Acres
Lot Size Acres: 0.118
Lot Features: Corner Lot

Utilities

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

Heating & Cooling
Has Heating
Heating: Floor Furnace
Cooling: Ceiling Fan(s)

Public facts

Beds: 2
Baths: 1.0
Sq. Ft.: 1,075
Stories: 1.0
Lot Size: 5,150 square feet
Style: Single Family Residential
Year Built: 1946
Year Renovated: 1946
County: Alameda County
APN: 415 006005700

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 • 1.4mi

4/10

Hayward High School

Public 9-12 • Assigned • 1.5mi

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

$775,000 – $938,000

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Home values near 21349 Rizzo Ave

Data from public records.

Address	Redfin Estimate
21348 Rizzo Ave, Castro Valley, CA 2 Beds \| 1 Baths \| 1100 Sq. Ft.	$829,537
21366 Rizzo Ave, Castro Valley, CA 3 Beds \| 1 Baths \| 1531 Sq. Ft.	$887,629

Address	Redfin Estimate
21342 Rizzo Ave, Castro Valley, CA 2 Beds \| 1 Baths \| 1100 Sq. Ft.	$764,496
21360 Rizzo Ave, Castro Valley, CA 3 Beds \| 2 Baths \| 1371 Sq. Ft.	$975,169

Address	Redfin Estimate
21331 Rizzo Ave, Castro Valley, CA 3 Beds \| 2 Baths \| 2224 Sq. Ft.	$1,093,126
21319 Rizzo Ave, Castro Valley, CA 3 Beds \| 1 Baths \| 1100 Sq. Ft.	$822,001

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2015. 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 21349 Rizzo Ave

Tax history for 21349 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 21349 Rizzo Ave

More real estate resources