Off Market Jan 2026 for $1.3M
$1,670,973
Est. refi paymentEst. refi $7,010/mo
3
bd
2.5 ba
2,018
sq ft

17838 Walnut Rd, Castro Valley, CA 94546

map-entry

About this home

Single-familyProperty Type
1954Year Built
10,170 sq ftLot Size
$828Est. Price/Sq.Ft.
2 car garageParking
Listed by Vicky Oberoi DRE #02025083 Asset Real Estate
Contact: 650-656-5951
Bought with Jennifer Tan DRE #01315265 Alliance Bay Realty
Redfin checked: 2 minutes ago
Source:MLSListings #ML82026357
Listing provided courtesy of MLSListings Inc. (MLSListings)

Redfin Estimate

$1,670,973
$336K since sold in January 2026$25K since July

This home's estimate is 30.2% higher than the average sale price ($1.28M) of 6 comparable homes.

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Earn from this home

Sell
$525,247
Est. take-home

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Refinance
$0
Est. cash available

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Rent
$4,391/mo
Redfin rental estimate

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Market trends in 94546, CA

Sale history for 17838 Walnut Rd

Tax history for 17838 Walnut Rd

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Beds
3
Baths
3
Stories
1
Lot width
Lot depth
Lot size
10,170 Sq. Ft.
Year renovated
1955
Sq. Ft.
2,018
Year built
1954
Style
Single Family Residential
County
Alameda County
APN
084D116200110
Parking Spaces
Basement
Accessible
HOA Dues
Garage
Features
Last updated by owner on Jul 27, 2026.

Property details

Around this home

Proctor Elementary School

Public K-5 • Assigned • 0.6mi

9/10
Creekside Middle School

Public 6-8 • Assigned • 1.9mi

10/10
Castro Valley High School

Public 9-12 • Assigned • 1.0mi

9/10
Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

3/10 Fire Factor

0.62% chance of being in a wildfire in next 30 years

3/10 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
74
56
79
57
80
58
77
54
65
48
61
46
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
Estimated sale price
$1.59M – $1.92M

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Property information provided by MLSListings when last listed in 2025. This data may not match public records. Learn more.
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GreatSchools Ratings provided by GreatSchools.org.