Sold on jul 2026
$984,777
3
bd
•
2 ba
•
1,650
sq ft

21451 Rizzo Ave, Castro Valley, CA 94546

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About this home

Single-familyProperty Type
1946Year Built
6,600 sq ftLot Size
$597Price/Sq.Ft.
1 garage spacesParking
Listed by Fred Nelson •DRE #01878084 • Coldwell Banker Realty
•707-503-9346 (agent)
Listed by David Smadbeck •DRE #01392341 • Coldwell Banker Realty
•415-497-9604 (agent)
Bought with Dannie Baker •DRE #02036950 • Legacy Real Estate & Assoc.
Bought with Kristy Peixoto •DRE #01256255 • Legacy Real Estate & Assoc.
•510-909-4286 (agent)
Redfin checked: a minute ago
•Source:BAREIS #326037954

Redfin Estimate

$1,122,839
$138K since sold in July 2026$13K since September

This home's estimate is 24.5% higher than the average sale price ($902K) of 6 comparable homes.

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Market trends in 94546, CA

Homeowner tools

Sale and tax history for 21451 Rizzo Ave

Public record

Beds
3
Baths
2
Stories
1
Lot width
—
Lot depth
—
Lot size
6,600 Sq. Ft.
Year renovated
1973
Sq. Ft.
1,650
Year built
1973
Style
Single Family Residential
County
Alameda County
APN
415 006006700
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 16, 2026.

Property details

Around this home

Schools

Fairview Elementary School

Public K-6 • Assigned • 1.6mi

2/10
Bret Harte Middle School

Public 7-8 • Assigned • 1.3mi

4/10
Hayward High School

Public 9-12 • Assigned • 1.4mi

5/10
Provided by GreatSchools

Local insights from Redfin agents

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)
63
43
64
46
71
49
69
49
73
53
74
54
75
57
79
57
79
60
77
54
65
48
61
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Sun exposure

84/ 100

Very good sunlight

Sunscore

This home receives average direct sun exposure in Castro Valley. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

9.7 hrs
5.8 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.07M – $1.29M

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Property information provided by BAREIS when last listed in 2026. This data may not match public records. Learn more.
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GreatSchools Ratings provided by GreatSchools.org.