SOLD SEP 16, 2026
Sold on sep 2026
$920,000
3
bd
•
2.5 ba
•
1,632
sq ft

21671 Shady Spring Rd, Castro Valley, CA 94546

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About this home

Single-familyProperty Type
1976Year Built
7,296 sq ftLot Size
$564Price/Sq.Ft.
2 car garageParking
Listed by Steve Moniz •DRE #00373244 • Premier Properties
Bought with Ruben Hernandez •DRE #02164467 • Kinetic Real Estate
Redfin checked: 2 minutes ago
•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #41128976

Redfin Estimate

$1,036,571
$117K since sold in September 2026$13K since September

This home's estimate is 15.2% higher than the average sale price ($900K) of 6 comparable homes.

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Market trends in 94546, CA

Homeowner tools

Sale and tax history for 21671 Shady Spring Rd

Public record

Beds
—
Baths
—
Stories
—
Lot width
—
Lot depth
—
Lot size
7,296 Sq. Ft.
Year renovated
1977
Sq. Ft.
1,632
Year built
1976
Style
Single Family Residential
County
Alameda County
APN
415 019000200
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 20, 2026.

Property details

Around this home

Schools

Fairview Elementary School

Public K-6 • Assigned • 1.8mi

2/10
Bret Harte Middle School

Public 7-8 • Assigned • 1.1mi

4/10
Hayward High School

Public 9-12 • Assigned • 1.3mi

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

70/ 100

Good sunlight

Sunscore

There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

9.9 hrs
3.4 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$985,000 – $1.19M

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Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2026. This data may not match public records. Learn more.
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GreatSchools Ratings provided by GreatSchools.org.