OFF MARKET

Off Market Aug 2009 for $410K

$1,183,467

Est. refi paymentEst. refi $2,660/mo

•

1,961

sq ft

18542 Walnut Rd, Castro Valley, CA 94546

About this home

Single-familyProperty Type

1974Year Built

9,408 sq ftLot Size

$604Est. Price/Sq.Ft.

2 car garageParking

Listed by Phillip Hunt •DRE #00357375 • Coldwell Banker Realty

Bought with Phillip Hunt •DRE #00357375 • Coldwell Banker Realty

Redfin checked: a few seconds ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40417653

Redfin Estimate

$1,183,467

$773K since sold in August 2009$3,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 10.5% lower than the average sale price ($1.32M) of 6 comparable homes.

SOLD JAN 7, 2026
$1,335,000
A
3 beds2.5 baths2,018 sq ft
17838 Walnut Rd, Castro Valley, CA 94546
SOLD MAR 20, 2026
$1,362,000
B
3 beds2.5 baths2,391 sq ft
18153 Plymouth Dr, Castro Valley, CA 94546
SOLD JUN 9, 2026
$1,175,000
C
3 beds2.5 baths1,699 sq ft
18419 Clifton Way, Castro Valley, CA 94546
SOLD JAN 16, 2026
$1,111,111
D
3 beds2 baths1,901 sq ft
18201 Lake Chabot Rd, Castro Valley, CA 94546
SOLD SEP 2, 2025
$1,475,000
E
3 beds2 baths1,976 sq ft
18767 Lamson Rd, Castro Valley, CA 94546
SOLD JUN 12, 2026
$1,475,000
F
3 beds2 baths1,928 sq ft
17880 Apricot Way, Castro Valley, CA 94546

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Earn from this home

Sell

$931,335

Est. take-home

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Refinance

Est. cash available

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Rent

$4,060/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

OPEN SUN, 1PM TO 3PM
$979,000
4 beds2.5 baths1,980 sq ft
4101 Toddika Ln, Castro Valley, CA 94546
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
3 beds1 bath1,080 sq ft
2976 Sydney, Castro Valley, CA 94546
COMING SOON
$1,550,000
3 beds1.5 baths1,851 sq ft
4618 Ewing Rd, Castro Valley, CA 94546
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 18542 Walnut Rd

Year

Property tax

Land + Additions

Assessment*

2025

$7,114 (+2.3%)

$158,759 + $370,439

$529,198

2024

$6,952 (+1.7%)

$158,759 + $370,439

$529,198

2023

$6,834 (+2.0%)

$155,647 + $363,178

$518,825

2022

$6,697 (+2.6%)

$149,604 + $349,078

$498,682

2021

$6,524 (+2.3%)

$149,604 + $349,078

$498,682

2020

$6,375 (−1.8%)

$146,672 + $342,236

$488,908

2019

$6,489 (+2.9%)

$145,169 + $338,728

$483,897

2018

$6,306 (+2.7%)

$142,323 + $332,087

$474,410

2017

$6,140 (+5.1%)

$136,798 + $319,195

$455,993

2016

$5,843 (+7.0%)

$136,798 + $319,195

$455,993

2015

$5,462 (+1.3%)

$134,116 + $312,939

$447,055

2014

$5,391 (+0.9%)

$129,516 + $302,205

$431,721

2013

$5,345 (+2.1%)

$129,516 + $302,205

$431,721

2012

$5,237 (+1.4%)

$128,932 + $300,842

$429,774

2011

$5,167 (+0.7%)

$126,404 + $294,944

$421,348

2010

$5,130 (+5.2%)

$123,926 + $289,161

$413,087

2009

$4,879 (+3.5%)

$123,000 + $287,000

$410,000

2008

$4,715

$118,378 + $275,711

$394,089

Tax history for 18542 Walnut Rd

Year

Property tax

Land + Additions

Assessment*

2025

$7,114 (+2.3%)

$158,759 + $370,439

$529,198

2024

$6,952 (+1.7%)

$158,759 + $370,439

$529,198

2023

$6,834 (+2.0%)

$155,647 + $363,178

$518,825

2022

$6,697 (+2.6%)

$149,604 + $349,078

$498,682

2021

$6,524 (+2.3%)

$149,604 + $349,078

$498,682

2020

$6,375 (−1.8%)

$146,672 + $342,236

$488,908

2019

$6,489 (+2.9%)

$145,169 + $338,728

$483,897

2018

$6,306 (+2.7%)

$142,323 + $332,087

$474,410

2017

$6,140 (+5.1%)

$136,798 + $319,195

$455,993

2016

$5,843 (+7.0%)

$136,798 + $319,195

$455,993

2015

$5,462 (+1.3%)

$134,116 + $312,939

$447,055

2014

$5,391 (+0.9%)

$129,516 + $302,205

$431,721

2013

$5,345 (+2.1%)

$129,516 + $302,205

$431,721

2012

$5,237 (+1.4%)

$128,932 + $300,842

$429,774

2011

$5,167 (+0.7%)

$126,404 + $294,944

$421,348

2010

$5,130 (+5.2%)

$123,926 + $289,161

$413,087

2009

$4,879 (+3.5%)

$123,000 + $287,000

$410,000

2008

$4,715

$118,378 + $275,711

$394,089

*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

9,408 Sq. Ft.

Year renovated

1976

Sq. Ft.

1,961

Year built

1974

Style

Single Family Residential

County

Alameda County

APN

084D116803207

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

Property details

Parking

Parking Information
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Garage, Int Access From Garage, Below Building Parking

Interior

Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 2
# of Bathrooms Partial: 1
Other Bathrooms Included Features: Shower Over Tub, Tile
Primary Bathroom Included Features: Stall Shower, Tile

Interior Features
Interior Features: Office
Appliances: Dishwasher, Double Oven, Oven, Refrigerator, Gas Water Heater
Laundry Features: 220 Volt Outlet, Dryer, Laundry Room, Washer
Upper Level Features: 3 Bedrooms, 2.5 Baths, Primary Bedrm Suite - 1, Laundry Facility
Street Level Features: Main Entry
Fireplaces Total: 1
Has Fireplace
Flooring: Tile, Wood

Room Information
Kitchen Features: 220 Volt Outlet,Dishwasher,Double Oven,Oven Built-in,Refrigerator
Rooms Total: 8
Fireplace Features: Dining Room
Basement: Crawl Space

Exterior

Building Information
Construction Materials: Wood Siding
Building Area Total: 1,961

Exterior Features
Exterior Features: Back Yard
Roof: Shingle

Property Information
Living Area: 1961
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1974

Lot Information
Lot Size Square Feet: 9408
Lot Size Area: 0.21
Lot Size Units: Acres
Lot Size Acres: 0.21
Lot Features: Irregular Lot, Secluded, Sloped Up
Zoning: res

Utilities

Utility Information
Water Source: Public
Electric: 220 Volts in Kitchen
Sewer: Public Sewer

Heating & Cooling
Has Heating
Heating: Forced Air, Natural Gas

Location

Homeowners Association Information
Pets Allowed: Yes

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

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 1,961
Stories: 1.0
Lot Size: 9,408 square feet
Style: Single Family Residential
Year Built: 1974
Year Renovated: 1976
County: Alameda County
APN: 084D116803207

Home facts updated by county records on Jul 27, 2026

Around this home

Schools

Chabot Elementary School

Public K-5 • Assigned • 0.5mi

9/10

Creekside Middle School

Public 6-8 • Assigned • 1.8mi

10/10

Castro Valley High School

Public 9-12 • Assigned • 0.9mi

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

0.46% 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 – $1.36M

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Nearby similar homes

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3D WALKTHROUGH

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New listings for sale in 94546

OPEN SUN, 1PM TO 3PM

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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

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2 beds1.5 baths1,207 sq ft

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(415) 510-8600

$870,000

3 beds1 bath1,080 sq ft

2976 Sydney, Castro Valley, CA 94546

COMING SOON

$1,550,000

3 beds1.5 baths1,851 sq ft

4618 Ewing Rd, Castro Valley, CA 94546

HOT HOME

$699,999

3 beds1 bath1,036 sq ft

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Home values near 18542 Walnut Rd

Data from public records.

Address	Redfin Estimate
18714 Walnut Road, Castro Valley, CA 3 Beds \| 2 Baths \| 2358 Sq. Ft.	$1,383,071
18701 Walnut Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1597 Sq. Ft.	$1,263,528

Address	Redfin Estimate
18616 Walnut Road, Castro Valley, CA 4 Beds \| 3 Baths \| 2754 Sq. Ft.	$1,384,374
18473 Walnut Road, Castro Valley, CA 3 Beds \| 1 Baths \| 1834 Sq. Ft.	$1,133,796

Address	Redfin Estimate
18483 Walnut Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1419 Sq. Ft.	$1,144,333
18697 Walnut Road, Castro Valley, CA - Beds \| 4 Baths \| 3633 Sq. Ft.	$1,762,655

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2009. 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 18542 Walnut Rd

Tax history for 18542 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 18542 Walnut Rd

More real estate resources