OFF MARKET

Off Market Aug 2021 for $1.4M

$1,586,998

Est. refi paymentEst. refi $6,882/mo

•

2,197

sq ft

18865 Walnut Rd, Castro Valley, CA 94546

About this home

Sited on a prominent corner lot this impeccably landscaped ranch has been tastefully remodeled throughout. All on one level the garden and home have the perfect indoor/outdoor flow with verdant views from nearly every window, patios bordered by roses, mature trees surrounded by a native, drought tolerant and pollinator friendly garden! The interior has vaulted ceilings, original wood paneling, refinished oak floors and dual pane windows with custom plantation shutters. The heart of the home is the kitchen, open to the dining room and overlooking both the front and back garden spaces. Custom cherry cabinets, decorative tile, ample storage with display cabinetry, granite counters and premium stainless appliances. A bonus family room with french doors that opens to the backyard has the second fireplace, a built in desk and storage cabinetry. An unparalleled location just moments to the Castro Valley Market Place, Public Market, Lake Chabot, hiking trails & the Community Center Park!

Single-familyProperty Type

1954Year Built

0.32 acresLot Size

$722Est. Price/Sq.Ft.

2 car garageParking

Listed by Laura Arechiga •DRE #01388149 • The Grubb Co. Inc.

Bought with Jennifer Chauvin •DRE #02100751 • EXP Realty of California, Inc

Redfin checked: 3 minutes ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40957618

Redfin Estimate

$1,586,998

$138K since sold in August 2021$13K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 15.5% higher than the average sale price ($1.37M) of 6 comparable homes.

SOLD MAR 27, 2026
18028 Almond Rd, Castro Valley, CA 94546
$1,178,000
A
3 beds2 baths2,146 sq ft
18028 Almond Rd, Castro Valley, CA 94546
SOLD MAY 22, 2026
$1,300,000
B
3 beds2 baths1,858 sq ft
3635 Northwood Dr, Castro Valley, CA 94546
SOLD JAN 7, 2026
$1,335,000
C
3 beds2.5 baths2,018 sq ft
17838 Walnut Rd, Castro Valley, CA 94546
SOLD APR 13, 2026
$1,800,000
D
3 beds2 baths1,804 sq ft
3146 Aylesbury Ct, Castro Valley, CA 94546
SOLD OCT 15, 2025
$1,410,000
E
3 beds2 baths1,888 sq ft
18076 Jaymark Ct, Castro Valley, CA 94546
SOLD JUN 23, 2026
$1,220,000
F
4 beds2 baths1,888 sq ft
17676 Garland Ct, Castro Valley, CA 94546

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Earn from this home

Sell

$456,681

Est. take-home

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Refinance

Est. cash available

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Rent

$4,316/mo

Redfin rental estimate

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Market trends in 94546, CA

Last updated July 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

NEW 11 HRS AGO
$1,899,000
4 beds3.5 baths3,379 sq ft
16989 Brierly Ct, Castro Valley, CA 94546
OPEN SAT, 1PM TO 4PM
$951,800
3 beds2 baths1,509 sq ft
17494 Ehle St, Castro Valley, CA 94546
OPEN SAT, 1PM TO 4PM
$1,198,000
3 beds2 baths1,348 sq ft
2464 Mikemary Ct, Castro Valley, CA 94546
$1,800,000
5 beds4 baths3,272 sq ft
3635 Corte Rubiolo, Castro Valley, CA 94546
COMING SOON
$1,075,000
3 beds2 baths1,740 sq ft
19026 Center St, Castro Valley, CA 94546
$1,188,000
3 beds2 baths1,604 sq ft
5223 Crane Ave, Castro Valley, CA 94546
HOT HOME
$749,950
3 beds2 baths1,170 sq ft
17119 Rolando Ave, Castro Valley, CA 94546
$950,000
4 beds2 baths1,792 sq ft
20942 Wilbeam Ave, Castro Valley, CA 94546
$799,000
2 beds1 bath1,300 sq ft
4304 Seven Hills Rd, Castro Valley, CA 94546
Beverly and Company, Inc.
$1,388,000
5 beds3 baths2,380 sq ft
18490 Carlwyn Dr, Castro Valley, CA 94546
See all

Provided by Redfin

Sale history for 18865 Walnut Rd

Year

Property tax

Land + Additions

Assessment*

2025

$19,031 (+2.2%)

$461,335 + $1,084,772

$1,546,107

2024

$18,625 (+2.0%)

$461,335 + $1,084,772

$1,546,107

2023

$18,259 (+1.8%)

$452,293 + $1,063,510

$1,515,803

2022

$17,931 (+212.4%)

$434,730 + $1,014,370

$1,449,100

2021

$5,739 (+2.4%)

$434,730 + $1,014,370

$1,449,100

2020

$5,607 (−1.7%)

$198,581 + $231,066

$429,647

2019

$5,703 (+2.9%)

$196,546 + $228,697

$425,243

2018

$5,540 (+2.7%)

$192,692 + $224,213

$416,905

2017

$5,393 (+5.1%)

$185,211 + $215,508

$400,719

2016

$5,130 (+7.0%)

$185,211 + $215,508

$400,719

2015

$4,794 (+1.4%)

$181,580 + $211,283

$392,863

2014

$4,726 (+0.9%)

$175,349 + $204,034

$379,383

2013

$4,682 (+2.1%)

$175,349 + $204,034

$379,383

2012

$4,584 (+1.4%)

$174,558 + $203,112

$377,670

2011

$4,521 (+0.7%)

$171,136 + $199,131

$370,267

2010

$4,488 (−0.3%)

$167,781 + $195,227

$363,008

2009

$4,504 (+3.6%)

$166,528 + $193,769

$360,297

2008

$4,348

$166,924 + $194,230

$361,154

Tax history for 18865 Walnut Rd

Year

Property tax

Land + Additions

Assessment*

2025

$19,031 (+2.2%)

$461,335 + $1,084,772

$1,546,107

2024

$18,625 (+2.0%)

$461,335 + $1,084,772

$1,546,107

2023

$18,259 (+1.8%)

$452,293 + $1,063,510

$1,515,803

2022

$17,931 (+212.4%)

$434,730 + $1,014,370

$1,449,100

2021

$5,739 (+2.4%)

$434,730 + $1,014,370

$1,449,100

2020

$5,607 (−1.7%)

$198,581 + $231,066

$429,647

2019

$5,703 (+2.9%)

$196,546 + $228,697

$425,243

2018

$5,540 (+2.7%)

$192,692 + $224,213

$416,905

2017

$5,393 (+5.1%)

$185,211 + $215,508

$400,719

2016

$5,130 (+7.0%)

$185,211 + $215,508

$400,719

2015

$4,794 (+1.4%)

$181,580 + $211,283

$392,863

2014

$4,726 (+0.9%)

$175,349 + $204,034

$379,383

2013

$4,682 (+2.1%)

$175,349 + $204,034

$379,383

2012

$4,584 (+1.4%)

$174,558 + $203,112

$377,670

2011

$4,521 (+0.7%)

$171,136 + $199,131

$370,267

2010

$4,488 (−0.3%)

$167,781 + $195,227

$363,008

2009

$4,504 (+3.6%)

$166,528 + $193,769

$360,297

2008

$4,348

$166,924 + $194,230

$361,154

*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

0.32 Acres

Year renovated

1965

Sq. Ft.

2,197

Year built

1954

Style

Single Family Residential

County

Alameda County

APN

084D115502507

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 22, 2023 • Final

Building

Perform an interior remodel of a single-family home. The project includes remodeling and expanding the master bathroom, remodeling the hallway bathroom with a new linen cabinet, and remodeling the basement to relocate the laundry area and add a half bathroom and mechanical room. Exterior work includes closing one door and relocating a window.

Bathroom

Remodel

Oct 25, 2022 • Final

Building

Replace an existing residential water heater with a new unit in the same location.

Plumbing

Water heater

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
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Detached, Off Street, Workshop in Garage, Garage Door Opener

Interior

Virtual Tour

Bathroom Information
# of Bathrooms Total: 2
# of Bathrooms Full: 2
Other Bathrooms Included Features: Shower Over Tub, Tile, Updated Baths
Primary Bathroom Included Features: Stall Shower, Tile, Updated Baths

Interior Features
Interior Features: Family Room, Stone Counters, Updated Kitchen
Appliances: Dishwasher, Double Oven, Gas Range, Range, Refrigerator, Gas Water Heater
Laundry Features: Hookups Only, In Basement
Street Level Features: 3 Bedrooms, 2 Baths, No Steps to Entry
Window Features: Screens
Fireplaces Total: 2
Has Fireplace
Flooring: Hardwood, Tile

Room Information
Kitchen Features: Counter - Stone,Dishwasher,Double Oven,Gas Range/Cooktop,Range/Oven Built-in,Refrigerator,Updated Kitchen
Rooms Total: 7
Fireplace Features: Brick, Family Room, Living Room, Pellet Stove
Basement: Partial

Exterior

Building Information
Construction Materials: Wood Siding
Building Area Total: 2,197

Exterior Features
Patio And Porch Features: Patio
Exterior Features: Garden, Back Yard, Dog Run, Front Yard, Garden/Play, Sprinklers Automatic, Landscape Back, Landscape Front, Landscape Misc, Low Maintenance
Fencing: Fenced, Front Yard
Roof: Shingle

Mobile Home Information
Model: Ranch

Property Information
Living Area: 2197
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1954

Lot Information
Lot Size Square Feet: 13832
Lot Size Area: 0.32
Lot Size Units: Acres
Lot Size Acres: 0.32
Lot Features: Corner Lot, Level, Premium Lot, Landscape Front, Private, Landscape Back

Utilities

Green Features Information
Green Energy Efficient: Windows

Utility Information
Water Source: Public
Sewer: Public Sewer

Heating & Cooling
Has Heating
Heating: Forced Air, Fireplace Insert, Pellet Stove

Location

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

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,197
Stories: 1.0
Lot Size: 0.32 acres
Style: Single Family Residential
Year Built: 1954
Year Renovated: 1965
County: Alameda County
APN: 084D115502507

Home facts updated by county records on Jul 27, 2026

Around this home

Schools
Places
Transit

Chabot Elementary School

Public K-5 • Assigned • 0.4mi

9/10

Creekside Middle School

Public 6-8 • Assigned • 1.9mi

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!
1 week 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

9/10 Flood Factor

Estimated 75-83% chance 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

$1.51M – $1.83M

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New listings for sale in 94546

NEW 11 HRS AGO

$1,899,000

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16989 Brierly Ct, Castro Valley, CA 94546

OPEN SAT, 1PM TO 4PM

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17494 Ehle St, Castro Valley, CA 94546

OPEN SAT, 1PM TO 4PM

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COMING SOON

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HOT HOME

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17119 Rolando Ave, Castro Valley, CA 94546

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4 beds2 baths1,792 sq ft

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Beverly and Company, Inc.

Home values near 18865 Walnut Rd

Data from public records.

Address	Redfin Estimate
18878 Walnut Road, Castro Valley, CA 4 Beds \| 3 Baths \| 1937 Sq. Ft.	$1,300,176
18765 Walnut Road, Castro Valley, CA 3 Beds \| 1.5 Baths \| 1654 Sq. Ft.	$1,332,327

Address	Redfin Estimate
18867 Walnut Road, Castro Valley, CA 4 Beds \| 2.5 Baths \| 3364 Sq. Ft.	$1,778,616
18874 Walnut Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1686 Sq. Ft.	$1,318,608

Address	Redfin Estimate
18759 Walnut Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1898 Sq. Ft.	$1,263,023
18868 Walnut Road, Castro Valley, CA 3 Beds \| 3 Baths \| 1577 Sq. Ft.	$1,225,463

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2021. 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 18865 Walnut Rd

Tax history for 18865 Walnut Rd

Public record

Property details

Around this home

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94546

Home values near 18865 Walnut Rd

More real estate resources