18777 Walnut Rd, Castro Valley, CA 94546

Off market mar 2022 for $1.4M

$1,588,869

Est. refi paymentEst. refi $8,293/mo

•

2,332

sq ft

18777 Walnut Rd, Castro Valley, CA 94546

About this home

Traditional 4 Bedroom 3 Bath, upper mid-century valley rancher with lots of room in a gorgeous setting. Large living room with fireplace, big family room with large brick fireplace and adjacent entertainers bar, 1 bed & bath near separate entry - could be ideal for multi-generational living! Kitchen w/ built-in breakfast nook & lots of cabinets. Sited impeccably landscaped. With a detached studio room this home has perfect indoor/outdoor flow with mature trees surrounded by beautiful vegetation. 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. An incomparable location just moments to the Castro Valley Market Place, Public Market, Lake Chabot, hiking trails & the Community Center Park!

Single-familyProperty Type

1945Year Built

0.25 acresLot Size

$681Est. Price/Sq.Ft.

Listed by Jason ODonnell •DRE #01804002 • O'Donnell Real Estate

Listed by Michael O'Donnell •DRE #00385555

Bought with Stephanie Owyang •DRE #01831895 • NONMEMBER MRML

Redfin checked: 2 minutes ago

•Source:CRMLS #OC21262650

Redfin Estimate

$1,588,869

$147K since sold in March 2022$0 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 16.5% higher than the average sale price ($1.36M) of 6 comparable homes.

SOLD SEP 3, 2026
$870,000
A
3 beds2.5 baths1,155 sq ft
3447 Seven Hills Rd, Castro Valley, CA 94546
SOLD BY REDFIN SEP 14, 2026
$1,500,000
B
4 beds3 baths2,205 sq ft
18308 Maffey Dr, Castro Valley, CA 94546
SOLD MAR 27, 2026
18028 Almond Rd, Castro Valley, CA 94546
$1,178,000
C
3 beds2 baths2,146 sq ft
18028 Almond Rd, Castro Valley, CA 94546
BOUGHT WITH REDFIN JUL 21, 2026
$1,400,000
D
4 beds2 baths1,651 sq ft
3445 Badding Rd, Castro Valley, CA 94546
SOLD SEP 16, 2026
$1,798,000
E
3 beds3 baths3,029 sq ft
18009 Laird Ct, Castro Valley, CA 94546
SOLD MAY 18, 2026
$1,438,000
F
4 beds2.5 baths2,113 sq ft
17939 Lamson Rd, Castro Valley, CA 94546

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Earn from this home

Sell

$453,453

Est. take-home

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Refinance

Est. cash available

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Rent

$4,493/mo

Redfin rental estimate

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Market trends in 94546, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

104.0%

+0.4% MoM

Median sale price

$1.1M

$30K MoM

Avg. days on market

15d

1 days MoM

Recently sold homes

15 MoM

New listings for sale

OPEN TODAY, 3PM TO 5PM
$1,175,000
3 beds2 baths1,795 sq ft
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$1,200,000
4 beds3 baths1,897 sq ft
18153 Judy St, Castro Valley, CA 94546
OPEN SAT, 1PM TO 4PM
$799,888
3 beds1 bath988 sq ft
2240 Lessley Ave, Castro Valley, CA 94546
$499,000
3 beds2 baths1,354 sq ft
21314 Gary Dr #108, Hayward, CA 94546
$1,498,000
4 beds3 baths3,275 sq ft
19912 Conrad Ct, Castro Valley, CA 94546
OPEN SUN, 1PM TO 4PM
$1,198,000
4 beds2.5 baths2,038 sq ft
3636 Arcadian Dr, Castro Valley, CA 94546
$848,888
3 beds1 bath1,288 sq ft
21968 Orange Ave, Castro Valley, CA 94546
EARLY ACCESS
$550,000
2 beds2 baths1,393 sq ft
21239 Gary Dr #206, Hayward, CA 94546
$429,000
2 beds2 baths899 sq ft
2505 Miramar Ave #114, Castro Valley, CA 94546
COMING SOON
5032 Vannoy Ave, Castro Valley, CA 94546
$1,250,000
4 beds2 baths1,860 sq ft
5032 Vannoy Ave, Castro Valley, CA 94546
See all

Provided by Redfin

Sale history for 18777 Walnut Rd

Date

Event

Price

bridgeMLS, Bay East AOR, or Contra Costa AOR #40976300

Mar 4, 2022

Sold

$1,441,500

$618/sq ft

Jan 24, 2022

Pending

—

Dec 15, 2021

Listed

$1,495,000

$641/sq ft

CRMLS #OC21262650

Mar 4, 2022

Sold

$1,441,500

$618/sq ft

Feb 17, 2022

Pending

—

Jan 24, 2022

Contingent

—

Dec 10, 2021

Listed

$1,495,000

$641/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40226122

Mar 8, 2007

Sold

$670,000

$287/sq ft

Jan 3, 2007

Listing Removed

—

Nov 17, 2006

Listed

$749,000

$321/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$18,962 (+2.2%)

$468,038 + $1,092,270

$1,560,308

2024

$18,558 (+1.5%)

$458,862 + $1,070,856

$1,529,718

2023

$18,289 (+363.5%)

$449,868 + $1,049,867

$1,499,735

2022

$3,946 (+2.8%)

$82,408 + $192,288

$274,696

2021

$3,840 (+2.4%)

$82,408 + $192,288

$274,696

2020

$3,749 (−1.5%)

$80,793 + $188,519

$269,312

2019

$3,808 (+3.0%)

$79,965 + $186,587

$266,552

2018

$3,698 (+2.8%)

$78,398 + $182,930

$261,328

2017

$3,598 (+5.1%)

$75,354 + $175,829

$251,183

2016

$3,422 (+7.0%)

$75,354 + $175,829

$251,183

2015

$3,198 (+1.8%)

$73,877 + $172,382

$246,259

2014

$3,141 (+1.3%)

$71,343 + $166,469

$237,812

2013

$3,101 (+2.3%)

$71,343 + $166,469

$237,812

2012

$3,031 (+1.4%)

$71,021 + $165,718

$236,739

2011

$2,988 (+0.8%)

$69,629 + $162,470

$232,099

2010

$2,965 (−0.2%)

$68,264 + $159,284

$227,548

2009

$2,970 (+4.2%)

$67,754 + $158,094

$225,848

2008

$2,850

$67,915 + $158,471

$226,386

Tax history for 18777 Walnut Rd

Year

Property tax

Land + Additions

Assessment*

2025

$18,962 (+2.2%)

$468,038 + $1,092,270

$1,560,308

2024

$18,558 (+1.5%)

$458,862 + $1,070,856

$1,529,718

2023

$18,289 (+363.5%)

$449,868 + $1,049,867

$1,499,735

2022

$3,946 (+2.8%)

$82,408 + $192,288

$274,696

2021

$3,840 (+2.4%)

$82,408 + $192,288

$274,696

2020

$3,749 (−1.5%)

$80,793 + $188,519

$269,312

2019

$3,808 (+3.0%)

$79,965 + $186,587

$266,552

2018

$3,698 (+2.8%)

$78,398 + $182,930

$261,328

2017

$3,598 (+5.1%)

$75,354 + $175,829

$251,183

2016

$3,422 (+7.0%)

$75,354 + $175,829

$251,183

2015

$3,198 (+1.8%)

$73,877 + $172,382

$246,259

2014

$3,141 (+1.3%)

$71,343 + $166,469

$237,812

2013

$3,101 (+2.3%)

$71,343 + $166,469

$237,812

2012

$3,031 (+1.4%)

$71,021 + $165,718

$236,739

2011

$2,988 (+0.8%)

$69,629 + $162,470

$232,099

2010

$2,965 (−0.2%)

$68,264 + $159,284

$227,548

2009

$2,970 (+4.2%)

$67,754 + $158,094

$225,848

2008

$2,850

$67,915 + $158,471

$226,386

*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

10,920

Year renovated

1945

Sq. Ft.

2,332

Year built

1945

Style

Single Family Residential

County

Alameda County

APN

084D115502502

Parking Spaces

—

Basement

Accessible

HOA Dues

—

Garage

Features

—

Last updated by owner on Aug 10, 2024.

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 2, 2023 • Final

Building

Upgrade the main electrical panel.

Electrical

May 5, 2020 • Final

Building

Perform a roof overlay on a residential building using composition shingles. Install a new roof deck with oriented strand board.

Roofing

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 / Garage Information
Carport
Has Parking

Interior

Laundry Information
Has Laundry
Gas & Electric Dryer Hookup

Bathroom Information
# of Baths (Full): 3

Cooling Information
Central
Has Cooling

Room Information
All Bedrooms Down, Family Room, Formal Entry, Kitchen, Laundry, Main Floor Bedroom

Fireplace Information
Family Room
Has Fireplace

Heating Information
Central Furnace
Has Heating

Interior Features
Levels: One
Main Level Bathrooms: 2
Main Level Bedrooms: 3
Spa Features: Private
Has Spa

Exterior

Exterior Information
Structure Type: House

Exterior Features
Pool Features: None

Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: 0-1 Unit/Acre

Property Information
Total # of Units: 1
Common Walls: No Common Walls
Living Area Source: Appraiser
Parcel Number: 084D115502502
Total # of Stories: 1
Year Built Source: Public Records

Financial

Assesments Information
Assessments: Unknown

Utilities

Utilities Information
Sewer: Public Sewer
Water Source: District/Public

Location

Neighborhood Information
Community Features: Biking, Park

School Information
High School District: Castro Valley

Location Information
Latitude: 37.71284600
Longitude: -122.08867100
Directions: Castro Valley Blvd, Left on Lake Chabot Rd, Right on Quail Ave

Public facts

Beds: 5
Baths: 3.0
Sq. Ft.: 2,332
Stories: 1.0
Parking Spaces: —
Basement: No
Accessible: No
Lot Size: 0.25 acres
Style: Single Family Residential
Year Built: 1945
Year Renovated: 1945
County: Alameda County
APN: 084D115502502
HOA Dues: —
Garage: No
Features: —

Home facts updated by owner on Aug 10, 2024

Other

Listing Information
Days Active in MLS: 43
Continuous Days Active in MLS: 43

Listing Agent Information
List Agent First Name: Jason
List Agent Last Name: ODonnell
Co-List Agent First Name: Michael
Co-List Agent Last Name: O'Donnell

Listing Office Information
List Office Name: O'Donnell Real Estate
Co-List Office Name: O'Donnell Real Estate

Selling Agent Information
Buyer Agent First Name: Stephanie
Buyer Agent Last Name: Owyang

Selling Office Information
Buyer Office Name: NONMEMBER MRML

Around this home

Schools

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 fall market offers great buyer leverage. While median prices hold steady around $1.2M, increased inventory gives you room to negotiate on homes needing updates. Turnkey properties still move fast in under 15 days, so act quickly with...
2 weeks ago • Castro Valley
Johnny Singh
Redfin Premier agent
148 deals
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Climate risks

8/10 Flood Factor

Estimated 74-82% 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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OPEN TODAY, 3PM TO 5PM

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19563 Helen Pl, Castro Valley, CA 94546

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4 beds3 baths1,897 sq ft

18153 Judy St, Castro Valley, CA 94546

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21314 Gary Dr #108, Hayward, CA 94546

$1,498,000

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19912 Conrad Ct, Castro Valley, CA 94546

OPEN SUN, 1PM TO 4PMHOT HOME

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3636 Arcadian Dr, Castro Valley, CA 94546

$848,888

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EARLY ACCESSCOMPASS COMING SOON

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21239 Gary Dr #206, Hayward, CA 94546

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Home values near 18777 Walnut Rd

Data from public records.

Address	Redfin Estimate
18749 Walnut Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1532 Sq. Ft.	$1,202,086
18765 Walnut Road, Castro Valley, CA 3 Beds \| 1.5 Baths \| 1654 Sq. Ft.	$1,312,770

Address	Redfin Estimate
18755 Walnut Road, Castro Valley, CA 3 Beds \| 3 Baths \| 1616 Sq. Ft.	$1,387,174
18874 Walnut Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1686 Sq. Ft.	$1,272,853

Address	Redfin Estimate
18759 Walnut Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1898 Sq. Ft.	$1,216,257
18868 Walnut Road, Castro Valley, CA 3 Beds \| 3 Baths \| 1577 Sq. Ft.	$1,238,177

Property information provided by CRMLS when last listed in 2021. This data may not show owner updates. 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 18777 Walnut Rd

Tax history for 18777 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 18777 Walnut Rd

More real estate resources