OFF MARKET

Off market sep 2014 for $700K

—

Est. refi paymentEst. refi $4,767/mo

—

•

— ba

•

2,986

sq ft

21306 Rizzo Ave, Castro Valley, CA 94546

About this home

Multi-familyProperty Type

1952Year Built

7,403 sq ftLot Size

$234Price/Sq.Ft.

1 car garageParking

Listed by Nick Asturias •DRE #01872321 • Coldwell Banker Realty

Bought with Jim Haynes •DRE #00303768 • BHHS Drysdale Properties

Redfin checked: 2 minutes ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40648820

Redfin Estimate

There isn’t enough information to generate an accurate estimate at this time. Learn More

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

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Provided by Redfin

Sale history for 21306 Rizzo Ave

Date

Event

Price

bridgeMLS, Bay East AOR, or Contra Costa AOR #40648820

Sep 5, 2014

Sold

$700,000

$234/sq ft

Mar 11, 2014

Listed

$720,000

$241/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40648835

Apr 17, 2014

Listing Removed

—

bridgeMLS, Bay East AOR, or Contra Costa AOR #40645552

Feb 26, 2014

Listing Removed

—

bridgeMLS, Bay East AOR, or Contra Costa AOR #40642694

Feb 26, 2014

Listing Removed

—

Public Records

Sep 10, 2004

Sold

$720,909

$241/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$13,927 (+3.0%)

$367,752 + $490,336

$858,088

2024

$13,522 (+2.6%)

$360,543 + $480,724

$841,267

2023

$13,180 (+2.9%)

$353,475 + $471,300

$824,775

2022

$12,803 (+1.6%)

$339,750 + $453,000

$792,750

2021

$12,596 (+1.4%)

$339,750 + $453,000

$792,750

2020

$12,418 (−0.6%)

$333,090 + $444,120

$777,210

2019

$12,490 (+10.0%)

$329,676 + $439,568

$769,244

2018

$11,357 (+2.7%)

$323,214 + $430,952

$754,166

2017

$11,061 (+5.5%)

$310,665 + $414,220

$724,885

2016

$10,485 (+3.3%)

$310,665 + $414,220

$724,885

2015

$10,152 (−7.7%)

$304,575 + $406,100

$710,675

2014

$10,993 (+1.8%)

$284,262 + $534,413

$818,675

2013

$10,795 (+2.4%)

$284,262 + $534,413

$818,675

2012

$10,543 (+1.1%)

$282,980 + $532,002

$814,982

2011

$10,428 (+2.2%)

$277,432 + $521,573

$799,005

2010

$10,201 (−1.0%)

$271,995 + $511,350

$783,345

2009

$10,309 (+3.4%)

$269,962 + $507,529

$777,491

2008

$9,969

$270,605 + $508,737

$779,342

Tax history for 21306 Rizzo Ave

Year

Property tax

Land + Additions

Assessment*

2025

$13,927 (+3.0%)

$367,752 + $490,336

$858,088

2024

$13,522 (+2.6%)

$360,543 + $480,724

$841,267

2023

$13,180 (+2.9%)

$353,475 + $471,300

$824,775

2022

$12,803 (+1.6%)

$339,750 + $453,000

$792,750

2021

$12,596 (+1.4%)

$339,750 + $453,000

$792,750

2020

$12,418 (−0.6%)

$333,090 + $444,120

$777,210

2019

$12,490 (+10.0%)

$329,676 + $439,568

$769,244

2018

$11,357 (+2.7%)

$323,214 + $430,952

$754,166

2017

$11,061 (+5.5%)

$310,665 + $414,220

$724,885

2016

$10,485 (+3.3%)

$310,665 + $414,220

$724,885

2015

$10,152 (−7.7%)

$304,575 + $406,100

$710,675

2014

$10,993 (+1.8%)

$284,262 + $534,413

$818,675

2013

$10,795 (+2.4%)

$284,262 + $534,413

$818,675

2012

$10,543 (+1.1%)

$282,980 + $532,002

$814,982

2011

$10,428 (+2.2%)

$277,432 + $521,573

$799,005

2010

$10,201 (−1.0%)

$271,995 + $511,350

$783,345

2009

$10,309 (+3.4%)

$269,962 + $507,529

$777,491

2008

$9,969

$270,605 + $508,737

$779,342

*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

7,403 Sq. Ft.

Year renovated

1952

Sq. Ft.

2,986

Year built

1952

Style

Multi-Family (5+ Unit)

County

Alameda County

APN

415 006005000

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
Total # of Parking Spaces: 6
Has Attached Garage
Parking Features: Attached, Off Site

Interior

Interior Features
Appliances: Free-Standing Range, Gas Water Heater
Laundry Features: In Garage
Has Fireplace
Flooring: Hardwood, Laminate, Linoleum, Partial Carpeting

Unit 1 Information
# of Unit 1 Type: 21,306
Unit 1 # of Bedrooms: 3
Unit 1 # of Bathrooms: 1
Unit 1 Dining Room: Yes
Unit 1 Air Conditioning: No
Unit 1 Parking Spaces: 2

Unit 2 Information
Unit 2 # of Bathrooms: 1
Unit 2 Dining Room: No
Unit 2 Air Conditioning: No
Unit 2 # of Parking Spaces: 1

Unit 3 Information
Unit 3 # of Bathrooms: 1
Unit 3 Dining Room: No
Unit 3 Air Conditioning: No
Unit 3 # of Parking Spaces: 1

Unit 4 Information
Unit 4 # of Bathrooms: 1
Unit 4 Dining Room: No
Unit 4 Air Conditioning: No
Unit 4 # of Parking Spaces: 1

Multi-Unit Information
Number Of Units Total: 5
Some Units Have: Dishwasher, Oven Range Free Standing, Microwave, Refrigerator

Exterior

Building Information
Construction Materials: Stucco
Building Area Total: 2,986

Exterior Features
Roof: Shingle

Property Information
Living Area: 2986
Living Area Units: Square Feet
Property Type: COMM RI MULTI-UNITS 5+
Property Sub Type: Lowrise (1-3 Flrs)
Year Built: 1952

Lot Information
Lot Size Square Feet: 7403
Lot Size Area: 0.17
Lot Size Units: Acres
Lot Size Acres: 0.17
Lot Features: Corner Lot

Utilities

Utility Information
Water Source: Public
Separate Meter: Electric, Gas
Sewer: Public Sewer

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

Public facts

Beds: 2
Baths: 5.0
Sq. Ft.: 2,986
Stories: 2.0
Lot Size: 7,403 square feet
Style: Multi-Family (5+ Unit)
Year Built: 1952
Year Renovated: 1952
County: Alameda County
APN: 415 006005000

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 • 1.5mi

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

5/10 Flood Factor

Estimated 19-29% chance 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

Is this your home?

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Home values near 21306 Rizzo Ave

Data from public records.

Address	Redfin Estimate
21348 Rizzo Ave, Castro Valley, CA 2 Beds \| 1 Baths \| 1100 Sq. Ft.	$829,537
21319 Rizzo Ave, Castro Valley, CA 3 Beds \| 1 Baths \| 1100 Sq. Ft.	$822,001

Address	Redfin Estimate
21342 Rizzo Ave, Castro Valley, CA 2 Beds \| 1 Baths \| 1100 Sq. Ft.	$764,496
21337 Rizzo Ave, Castro Valley, CA 3 Beds \| 1 Baths \| 1100 Sq. Ft.	$899,408

Address	Redfin Estimate
21331 Rizzo Ave, Castro Valley, CA 3 Beds \| 2 Baths \| 2224 Sq. Ft.	$1,093,126
21343 Rizzo Ave, Castro Valley, CA 2 Beds \| 1 Baths \| 1100 Sq. Ft.	$816,846

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2014. 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

Market trends in 94546, CA

Sale history for 21306 Rizzo Ave

Tax history for 21306 Rizzo Ave

Public record

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Is this your home?

Nearby similar homes

New listings for sale in 94546

Home values near 21306 Rizzo Ave

More real estate resources