21319 Rizzo Ave is a 1,100 square foot house on a 5,000 square foot lot with 3 bedrooms and 1 bathroom. - it last sold on August 17, 1990 for $172,500. Based on Redfin's Castro Valley data, we estimate the home's value is $820,784.
Single-familyProperty Type
1946Year Built
5,000 sq ftLot Size
$746Est. Price/Sq.Ft.
1 car garageParking
Source:Public Records
Redfin Estimate
$820,784
$648K since sold in August 1990$2,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 0.8% lower than the average sale price ($827K) of 6 comparable homes.
bridgeMLS, Bay East AOR, or Contra Costa AOR #40323726
Jun 4, 2008
Listing Removed
—
May 9, 2008
Price Changed
*
Apr 23, 2008
Price Changed
*
Mar 3, 2008
Price Changed
*
Feb 13, 2008
Listed
*
Public Records
Aug 17, 1990
Sold
$172,500
$157/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$5,039 (+10.4%)
$93,428 + $217,699
$311,127
2024
$4,562 (+2.1%)
$93,428 + $217,699
$311,127
2023
$4,468 (+2.5%)
$91,596 + $213,431
$305,027
2022
$4,360 (−3.9%)
$88,040 + $205,144
$293,184
2021
$4,539 (−5.9%)
$88,040 + $205,144
$293,184
2020
$4,823 (+12.9%)
$86,314 + $201,122
$287,436
2019
$4,274 (+6.1%)
$85,429 + $199,060
$284,489
2018
$4,028 (+2.5%)
$83,754 + $195,158
$278,912
2017
$3,928 (+6.2%)
$80,502 + $187,581
$268,083
2016
$3,699 (+2.9%)
$80,502 + $187,581
$268,083
2015
$3,596 (+5.7%)
$78,924 + $183,903
$262,827
2014
$3,402 (+1.5%)
$76,216 + $177,594
$253,810
2013
$3,352 (+2.2%)
$76,216 + $177,594
$253,810
2012
$3,280 (+2.3%)
$75,873 + $176,792
$252,665
2011
$3,207 (+2.2%)
$74,385 + $173,326
$247,711
2010
$3,139 (−1.2%)
$72,927 + $169,928
$242,855
2009
$3,175 (+4.4%)
$72,382 + $168,658
$241,040
2008
$3,040
$72,554 + $169,059
$241,613
Tax history for 21319 Rizzo Ave
Year
Property tax
Land + Additions
Assessment*
2025
$5,039 (+10.4%)
$93,428 + $217,699
$311,127
2024
$4,562 (+2.1%)
$93,428 + $217,699
$311,127
2023
$4,468 (+2.5%)
$91,596 + $213,431
$305,027
2022
$4,360 (−3.9%)
$88,040 + $205,144
$293,184
2021
$4,539 (−5.9%)
$88,040 + $205,144
$293,184
2020
$4,823 (+12.9%)
$86,314 + $201,122
$287,436
2019
$4,274 (+6.1%)
$85,429 + $199,060
$284,489
2018
$4,028 (+2.5%)
$83,754 + $195,158
$278,912
2017
$3,928 (+6.2%)
$80,502 + $187,581
$268,083
2016
$3,699 (+2.9%)
$80,502 + $187,581
$268,083
2015
$3,596 (+5.7%)
$78,924 + $183,903
$262,827
2014
$3,402 (+1.5%)
$76,216 + $177,594
$253,810
2013
$3,352 (+2.2%)
$76,216 + $177,594
$253,810
2012
$3,280 (+2.3%)
$75,873 + $176,792
$252,665
2011
$3,207 (+2.2%)
$74,385 + $173,326
$247,711
2010
$3,139 (−1.2%)
$72,927 + $169,928
$242,855
2009
$3,175 (+4.4%)
$72,382 + $168,658
$241,040
2008
$3,040
$72,554 + $169,059
$241,613
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
R1
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
Aug 29, 2023 • Final
Building
Install an energy storage system with batteries.
Battery
Electrical
Solar
Aug 23, 2004 • Final
Building
Install an overlay of composition shingles on a residential building.
Roofing
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
Interior
Room Information
# of Rooms: 6
Exterior
Exterior Information
Building Style Type: L-Shape
Construction Type: Wood
Building Construction Quality: Average
Property Information
Living Sq. Ft: 1,100
Building Sq. Ft: 1,100
# of Units: 1
# of Stories: 1
Legal Description: TRACT 662 LOT 17
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,000
Legal Lot Number: 17
Municipality Name: HAYWARD UNINCORP
Acres: 0.1148
County Use Description: SINGLE FAMILY RESIDENTIAL HOME
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 1,100
Stories: 1.0
Lot Size: 5,000 square feet
Style: Single Family Residential
Year Built: 1946
Year Renovated: 1946
County: Alameda County
APN: 415 006005200
Home facts updated by county records on Jul 27, 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 late-summer market shows a clear split. While median prices hold near $1.2M, increased inventory gives buyers leverage on older properties. However, immaculate homes still go pending in under 15 days. A strong, clean offer is key!
Strong buyer demand keeps the Castro Valley market moving incredibly fast. With homes frequently selling above their $1.2 million median price, decisive action is essential. To win here, buyers need to submit competitive offers quickly and minimize...