OFF MARKET

Off Market Dec 2007 for $580K

$1,192,729

Est. refi paymentEst. refi $4,330/mo

•

1,411

sq ft

17658 Walnut Rd, Castro Valley, CA 94546

About this home

Single-familyProperty Type

1953Year Built

10,740 sq ftLot Size

$845Est. Price/Sq.Ft.

2 car garageParking

Listed by Diane Mcdonald •DRE #01197910 • Coldwell Banker Realty

Bought with Carmen Chavez •DRE #01779272 • International Brokers

Redfin checked: 2 minutes ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40288217

Redfin Estimate

$1,192,729

$613K since sold in December 2007$9,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 2.7% lower than the average sale price ($1.23M) of 5 comparable homes.

SOLD AUG 11, 2026
$1,300,000
A
4 beds2 baths1,525 sq ft
4486 Lawrence Dr, Castro Valley, CA 94546
SOLD JUL 27, 2026
$1,064,000
B
3 beds2.5 baths1,226 sq ft
3488 Brookdale Blvd, Castro Valley, CA 94546
SOLD NOV 6, 2025
$1,385,000
C
3 beds2 baths1,512 sq ft
4633 Lockridge Way, Castro Valley, CA 94546
SOLD NOV 3, 2025
$1,068,000
D
3 beds2 baths1,415 sq ft
4859 Seaview Ave, Castro Valley, CA 94546
SOLD JUL 1, 2026
$1,310,000
E
3 beds2 baths1,340 sq ft
4880 Mancini Dr, Castro Valley, CA 94546

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Earn from this home

Sell

$889,111

Est. take-home

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Refinance

Est. cash available

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Rent

$4,180/mo

Redfin rental estimate

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Market trends in 94546, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

105.6%

+0.7% MoM

Median sale price

$1.1M

$45K MoM

Avg. days on market

13d

1 days MoM

Recently sold homes

100

5 MoM

New listings for sale

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OPEN WED, 10:30AM TO 12PM
$999,000
4 beds2 baths1,680 sq ft
20275 Stanton Ave, Castro Valley, CA 94546
OPEN SAT, 1:30PM TO 4PM
$799,000
2 beds1 bath1,122 sq ft
1540 Crescent Ave, Castro Valley, CA 94546
COMING SOON
$799,000
2 beds1 bath1,079 sq ft
18473 Apricot Way, Castro Valley, CA 94546
$1,175,000
3 beds2 baths1,440 sq ft
19453 Vaughn Ave, Castro Valley, CA 94546
Pacific Home Brokers
$695,000
2 beds1.5 baths1,207 sq ft
20279 Forest Ave, Castro Valley, CA 94546
(415) 510-8600
$870,000
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COMING SOON
$1,550,000
3 beds1.5 baths1,851 sq ft
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HOT HOME
$699,999
3 beds1 bath1,036 sq ft
19117 Parsons Ave, Castro Valley, CA 94546
$549,950
3 beds2 baths1,354 sq ft
21239 Gary Dr Unit 202E, Hayward, CA 94546
See all

Provided by Redfin

Sale history for 17658 Walnut Rd

Year

Property tax

Land + Additions

Assessment*

2025

$11,939 (+20.1%)

$228,536 + $566,135

$794,671

2024

$9,938 (+1.6%)

$228,536 + $566,135

$794,671

2023

$9,780 (+2.0%)

$224,056 + $555,036

$779,092

2022

$9,592 (+2.6%)

$215,358 + $533,488

$748,846

2021

$9,347 (+2.3%)

$215,358 + $533,488

$748,846

2020

$9,134 (−1.8%)

$211,136 + $523,031

$734,167

2019

$9,302 (+2.9%)

$208,972 + $517,669

$726,641

2018

$9,039 (+3.7%)

$204,876 + $507,522

$712,398

2017

$8,716 (+8.3%)

$196,922 + $480,686

$677,608

2016

$8,050 (+7.0%)

$196,922 + $480,686

$677,608

2015

$7,524 (+9.7%)

$193,061 + $450,477

$643,538

2014

$6,861 (+13.3%)

$171,000 + $399,000

$570,000

2013

$6,055 (+6.1%)

$171,000 + $399,000

$570,000

2012

$5,705 (+3.6%)

$150,000 + $350,000

$500,000

2011

$5,505 (−4.1%)

$141,000 + $329,000

$470,000

2010

$5,742 (−10.5%)

$135,000 + $315,000

$450,000

2009

$6,414 (−7.2%)

$141,300 + $329,700

$471,000

2008

$6,911

$158,700 + $370,300

$529,000

Tax history for 17658 Walnut Rd

Year

Property tax

Land + Additions

Assessment*

2025

$11,939 (+20.1%)

$228,536 + $566,135

$794,671

2024

$9,938 (+1.6%)

$228,536 + $566,135

$794,671

2023

$9,780 (+2.0%)

$224,056 + $555,036

$779,092

2022

$9,592 (+2.6%)

$215,358 + $533,488

$748,846

2021

$9,347 (+2.3%)

$215,358 + $533,488

$748,846

2020

$9,134 (−1.8%)

$211,136 + $523,031

$734,167

2019

$9,302 (+2.9%)

$208,972 + $517,669

$726,641

2018

$9,039 (+3.7%)

$204,876 + $507,522

$712,398

2017

$8,716 (+8.3%)

$196,922 + $480,686

$677,608

2016

$8,050 (+7.0%)

$196,922 + $480,686

$677,608

2015

$7,524 (+9.7%)

$193,061 + $450,477

$643,538

2014

$6,861 (+13.3%)

$171,000 + $399,000

$570,000

2013

$6,055 (+6.1%)

$171,000 + $399,000

$570,000

2012

$5,705 (+3.6%)

$150,000 + $350,000

$500,000

2011

$5,505 (−4.1%)

$141,000 + $329,000

$470,000

2010

$5,742 (−10.5%)

$135,000 + $315,000

$450,000

2009

$6,414 (−7.2%)

$141,300 + $329,700

$471,000

2008

$6,911

$158,700 + $370,300

$529,000

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

Public record

Public record
Zoning
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

10,740 Sq. Ft.

Year renovated

1990

Sq. Ft.

1,681

Year built

1953

Style

Single Family Residential

County

Alameda County

APN

084D118000201

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 27, 2026.

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

Feb 3, 2017 • Final

Building

Upgrade the electrical service and install a new sub panel.

Electrical

Aug 25, 2016 • Final

Building

Convert a non-habitable storage space under a house into a bedroom, bathroom, and laundry room. Modify floor joists as needed to ensure ceiling height meets residential code requirements.

Addition

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

Parking

Parking Information
Has Attached Garage
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached, Off Street, Garage Door Opener

Interior

Bathroom Information
# of Bathrooms Total: 2
# of Bathrooms Full: 2
Other Bathrooms Included Features: Shower Over Tub

Interior Features
Interior Features: Bonus/Plus Room, Dining Area, Storage, Tile Counters, Eat-in Kitchen, Updated Kitchen
Appliances: Dishwasher, Disposal, Gas Range, Refrigerator, Gas Water Heater
Laundry Features: In Garage
Street Level Features: 3 Bedrooms, 2 Baths
Window Features: Window Coverings
Fireplaces Total: 1
Has Fireplace
Flooring: Hardwood, Linoleum, Carpet

Room Information
Kitchen Features: Counter - Tile,Dishwasher,Eat In Kitchen,Garbage Disposal,Gas Range/Cooktop,Refrigerator,Updated Kitchen
Rooms Total: 8
Fireplace Features: Brick, Living Room
Basement: Crawl Space

Exterior

Building Information
Construction Materials: Stucco
Building Area Total: 1,411

Exterior Features
Exterior Features: Back Yard, Front Yard
Roof: Shingle

Property Information
Living Area: 1411
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1953

Lot Information
Other Structures: Shed(s)
Lot Size Square Feet: 10740
Lot Size Area: 0.25
Lot Size Units: Acres
Lot Size Acres: 0.25
Lot Features: No Lot
Zoning: Res

Utilities

Utility Information
Water Source: Public
Sewer: Public Sewer

Heating & Cooling
Has Heating
Heating: Forced Air
Cooling: Central Air

Location

School Information
High School District: Castro Valley (510) 537-3000

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 1,681
Stories: 1.0
Lot Size: 10,740 square feet
Style: Single Family Residential
Year Built: 1953
Year Renovated: 1990
County: Alameda County
APN: 084D118000201

Home facts updated by county records on Jul 27, 2026

Around this home

Schools

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 • 1.1mi

9/10

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!
2 weeks ago • Castro Valley
Johnny Singh
Redfin Premier agent
146 deals
Was this helpful?
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...
1 month ago • Castro Valley
Karan Kandel
Redfin agent
13 deals
Was this helpful?

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)

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

$1.13M – $1.37M

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New listings for sale in 94546

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OPEN SAT, 1:30PM TO 4PM

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COMING SOON

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(415) 510-8600

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COMING SOON

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HOT HOME

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Home values near 17658 Walnut Rd

Data from public records.

Address	Redfin Estimate
17624 Walnut Rd, Castro Valley, CA 3 Beds \| 2 Baths \| 1866 Sq. Ft.	$1,468,427
4563 Grenadier Pl, Castro Valley, CA 3 Beds \| 3 Baths \| 2587 Sq. Ft.	$1,686,075

Address	Redfin Estimate
17552 Walnut Rd, Castro Valley, CA 4 Beds \| 3 Baths \| 2665 Sq. Ft.	$1,766,627
4635 Proctor Rd, Castro Valley, CA 4 Beds \| 4.5 Baths \| 3006 Sq. Ft.	$2,097,012

Address	Redfin Estimate
11728 Walnut Rd, Castro Valley, CA 4 Beds \| 4 Baths \| 3293 Sq. Ft.	$2,133,070
4583 Grenadier Pl, Castro Valley, CA 4 Beds \| 3 Baths \| 2987 Sq. Ft.	$1,859,955

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2007. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94546, CA

Sale history for 17658 Walnut Rd

Tax history for 17658 Walnut Rd

Public record

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94546

Home values near 17658 Walnut Rd

More real estate resources