21372 Rizzo Ave is a 1,237 square foot house on a 6,138 square foot lot with 3 bedrooms and 1 bathroom. Based on Redfin's Castro Valley data, we estimate the home's value is $843,751.
Single-familyProperty Type
1946Year Built
6,138 sq ftLot Size
$682Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$843,751
$3,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 5.2% lower than the average sale price ($890K) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$1,798 (+3.1%)
$37,512 + $32,260
$69,772
2024
$1,744 (+3.0%)
$36,776 + $31,628
$68,404
2023
$1,693 (+3.2%)
$36,055 + $31,007
$67,062
2022
$1,641 (+2.0%)
$34,655 + $29,804
$64,459
2021
$1,608 (+1.8%)
$34,655 + $29,804
$64,459
2020
$1,579 (−0.3%)
$33,976 + $29,219
$63,195
2019
$1,584 (+4.7%)
$33,628 + $28,920
$62,548
2018
$1,513 (+2.6%)
$32,968 + $28,353
$61,321
2017
$1,475 (+7.2%)
$31,688 + $27,252
$58,940
2016
$1,376 (+4.2%)
$31,688 + $27,252
$58,940
2015
$1,321 (−17.4%)
$31,067 + $26,717
$57,784
2014
$1,600 (+19.9%)
$30,001 + $25,801
$55,802
2013
$1,334 (+13.1%)
$30,001 + $25,801
$55,802
2012
$1,180 (+6.2%)
$29,865 + $25,684
$55,549
2011
$1,111 (+1.9%)
$29,280 + $25,181
$54,461
2010
$1,090 (+0.2%)
$28,706 + $24,687
$53,393
2009
$1,088 (+7.6%)
$28,491 + $24,502
$52,993
2008
$1,012
$28,559 + $24,561
$53,120
Tax history for 21372 Rizzo Ave
Year
Property tax
Land + Additions
Assessment*
2025
$1,798 (+3.1%)
$37,512 + $32,260
$69,772
2024
$1,744 (+3.0%)
$36,776 + $31,628
$68,404
2023
$1,693 (+3.2%)
$36,055 + $31,007
$67,062
2022
$1,641 (+2.0%)
$34,655 + $29,804
$64,459
2021
$1,608 (+1.8%)
$34,655 + $29,804
$64,459
2020
$1,579 (−0.3%)
$33,976 + $29,219
$63,195
2019
$1,584 (+4.7%)
$33,628 + $28,920
$62,548
2018
$1,513 (+2.6%)
$32,968 + $28,353
$61,321
2017
$1,475 (+7.2%)
$31,688 + $27,252
$58,940
2016
$1,376 (+4.2%)
$31,688 + $27,252
$58,940
2015
$1,321 (−17.4%)
$31,067 + $26,717
$57,784
2014
$1,600 (+19.9%)
$30,001 + $25,801
$55,802
2013
$1,334 (+13.1%)
$30,001 + $25,801
$55,802
2012
$1,180 (+6.2%)
$29,865 + $25,684
$55,549
2011
$1,111 (+1.9%)
$29,280 + $25,181
$54,461
2010
$1,090 (+0.2%)
$28,706 + $24,687
$53,393
2009
$1,088 (+7.6%)
$28,491 + $24,502
$52,993
2008
$1,012
$28,559 + $24,561
$53,120
*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
May 20, 2020 • Final
Building
Remove and replace a wall heater in the hallway and a water heater in the garage.
HVAC
Plumbing
Water heater
Jan 3, 2005 • Final
Building
Upgrade the electrical service to 100 amps.
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
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: 1,237
Building Sq. Ft: 1,237
# of Units: 1
# of Stories: 1
Legal Description: TRACT 662 LOT 33
Lot Information
# of Buildings: 1
Land Sq. Ft: 6,138
Legal Lot Number: 33
Municipality Name: HAYWARD UNINCORP
Acres: 0.1409
County Use Description: SINGLE FAMILY RESIDENTIAL HOME
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 1,237
Stories: 1.0
Lot Size: 6,138 square feet
Style: Single Family Residential
Year Built: 1946
Year Renovated: 1946
County: Alameda County
APN: 415 006004000
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...