17838 Walnut Rd, Castro Valley, CA 94546

Off market jan 2026 for $1.3M

$1,576,975

Est. refi paymentEst. refi $7,661/mo

•

2,018

sq ft

17838 Walnut Rd, Castro Valley, CA 94546

About this home

Experience elevated, spacious living in this stunning 3 Bed, 2.5 Bath home. A total remodel delivers modern style and comfort. The open-concept kitchen is a dream featuring Stainless Steel Appliances, an island with contemporary lighting, quartz countertops, soft-close cabinetry, a matching backsplash, a built-in wine cooler, and recessed lighting throughout. Entertain effortlessly at the Bar Area or relax by the electric fireplace. The designer baths feature chic, high-end finishes and modern LED mirrors. Enjoy smart home ease with a Nest Thermostat and Nest Doorbell. The property boasts gorgeously landscaped front and back yards with a fire pit area to relax anytime. Prime Location: Steps to Parsons Park & Lake Chabot. Easy commute via I-580 & Castro Valley BART. Top-rated schools: Proctor Elementary, Creekside Middle, & Castro Valley High. Come and make this yours!

Single-familyProperty Type

1954Year Built

10,170 sq ftLot Size

$781Est. 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: a minute ago

•Source:MLSListings #ML82026357

Redfin Estimate

$1,576,975

$242K since sold in January 2026$8,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 23.8% higher than the average sale price ($1.27M) of 6 comparable homes.

SOLD JUL 27, 2026
$1,064,000
A
3 beds2.5 baths1,226 sq ft
3488 Brookdale Blvd, Castro Valley, CA 94546
SOLD MAR 27, 2026
18028 Almond Rd, Castro Valley, CA 94546
$1,178,000
B
3 beds2 baths2,146 sq ft
18028 Almond Rd, Castro Valley, CA 94546
SOLD AUG 27, 2026
$1,301,000
C
3 beds2 baths2,003 sq ft
16982 Hinton St, Castro Valley, CA 94546
SOLD MAR 20, 2026
$1,362,000
D
3 beds2.5 baths2,391 sq ft
18153 Plymouth Dr, Castro Valley, CA 94546
SOLD MAY 22, 2026
$1,300,000
E
3 beds2 baths1,858 sq ft
3635 Northwood Dr, 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

$439,184

Est. take-home

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Refinance

Est. cash available

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Rent

$4,003/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

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See all

Provided by Redfin

Sale history for 17838 Walnut Rd

Date

Event

Price

MLSListings #ML82026357

Jan 7, 2026

Sold

$1,335,000

$662/sq ft

Nov 21, 2025

Pending

—

Nov 6, 2025

Listed

$1,299,888

$644/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$2,239 (+3.0%)

$270,000 + $630,000

$900,000

2024

$2,174 (+2.7%)

$54,674 + $68,404

$123,078

2023

$2,117 (+2.9%)

$53,602 + $67,063

$120,665

2022

$2,056 (+3.0%)

$51,521 + $64,459

$115,980

2021

$1,996 (+2.5%)

$51,521 + $64,459

$115,980

2020

$1,947 (−1.1%)

$50,511 + $63,196

$113,707

2019

$1,969 (+3.1%)

$49,993 + $62,548

$112,541

2018

$1,910 (+2.9%)

$49,013 + $61,321

$110,334

2017

$1,856 (+5.2%)

$47,110 + $58,940

$106,050

2016

$1,764 (+7.0%)

$47,110 + $58,940

$106,050

2015

$1,649 (+2.9%)

$46,186 + $57,785

$103,971

2014

$1,602 (+2.2%)

$44,602 + $55,802

$100,404

2013

$1,567 (+2.8%)

$44,602 + $55,802

$100,404

2012

$1,525 (+1.6%)

$44,400 + $55,550

$99,950

2011

$1,501 (+1.0%)

$43,530 + $54,461

$97,991

2010

$1,486 (+0.4%)

$42,676 + $53,393

$96,069

2009

$1,481 (+6.1%)

$42,357 + $52,994

$95,351

2008

$1,395

$42,458 + $53,120

$95,578

Tax history for 17838 Walnut Rd

Year

Property tax

Land + Additions

Assessment*

2025

$2,239 (+3.0%)

$270,000 + $630,000

$900,000

2024

$2,174 (+2.7%)

$54,674 + $68,404

$123,078

2023

$2,117 (+2.9%)

$53,602 + $67,063

$120,665

2022

$2,056 (+3.0%)

$51,521 + $64,459

$115,980

2021

$1,996 (+2.5%)

$51,521 + $64,459

$115,980

2020

$1,947 (−1.1%)

$50,511 + $63,196

$113,707

2019

$1,969 (+3.1%)

$49,993 + $62,548

$112,541

2018

$1,910 (+2.9%)

$49,013 + $61,321

$110,334

2017

$1,856 (+5.2%)

$47,110 + $58,940

$106,050

2016

$1,764 (+7.0%)

$47,110 + $58,940

$106,050

2015

$1,649 (+2.9%)

$46,186 + $57,785

$103,971

2014

$1,602 (+2.2%)

$44,602 + $55,802

$100,404

2013

$1,567 (+2.8%)

$44,602 + $55,802

$100,404

2012

$1,525 (+1.6%)

$44,400 + $55,550

$99,950

2011

$1,501 (+1.0%)

$43,530 + $54,461

$97,991

2010

$1,486 (+0.4%)

$42,676 + $53,393

$96,069

2009

$1,481 (+6.1%)

$42,357 + $52,994

$95,351

2008

$1,395

$42,458 + $53,120

$95,578

*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

10,170 Sq. Ft.

Year renovated

1967

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 Sep 17, 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

Oct 31, 2025 • Final

Building

Remove and replace windows and a door with new units of the same size and type.

Remodel

Oct 30, 2025 • Final

Building

Perform a like-for-like remodel of a kitchen and three bathrooms in a single-family home. Install recessed lighting throughout the house and update the electrical subpanel at the same location.

Bathroom

Electrical

Kitchen

Remodel

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 (Minimum): 2
Garage (Maximum): 2
Parking Description: Detached
Garage Spaces: 2

Interior

Bedroom Information
# of Bedrooms (Minimum): 3
# of Bedrooms (Maximum): 3

Bathroom Information
# of Baths (Full): 2
# of Baths (1/2): 1

Room Information
Dining Room Description: Dining Area

Fireplace Information
Has Fireplace
Fireplace Description: In Living Room

Heating & Cooling Information
Heating: Forced Air

Exterior

Exterior Features
Roof: Tile

Building Information
Subclass: Single Family Home
Building Type: Detached
Raised

Property Features
Living Sq. Ft.: 2,018

Property Information
Property Primary ID: 736846

Lot Information
Lot Size Area Minimum Units: Sq. Ft.
Lot Size Area Maximum Units: Sq. Ft.
Lot Size Source: Assessor
Zoning: R1

Utilities

Utility Information
Sewer Septic: Sewer (Public)
Utilities: Public Utilities

Water Information
Water: Public

Location

Multi-Unit Information
# of Stories: 1

School Information
Elementary School District: Castro Valley Unified
High School District: Castro Valley Unified

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,018
Stories: 1.0
Lot Size: 10,170 square feet
Style: Single Family Residential
Year Built: 1954
Year Renovated: 1967
County: Alameda County
APN: 084D116200110

Home facts updated by county records on Sep 17, 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 • 1.0mi

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...
1 week ago • Castro Valley
Johnny Singh
Redfin Premier agent
148 deals
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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

$1.50M – $1.81M

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Home values near 17838 Walnut Rd

Data from public records.

Address	Redfin Estimate
18024 Walnut Road, Castro Valley, CA 4 Beds \| 3 Baths \| 2202 Sq. Ft.	$1,716,120
17967 Walnut Road, Castro Valley, CA 4 Beds \| 2 Baths \| 1890 Sq. Ft.	$1,242,150

Address	Redfin Estimate
18016 Walnut Road, Castro Valley, CA 3 Beds \| 2.5 Baths \| 1526 Sq. Ft.	$1,272,153
17823 Walnut Road, Castro Valley, CA 4 Beds \| 4 Baths \| 2607 Sq. Ft.	$1,501,876

Address	Redfin Estimate
17982 Walnut Road, Castro Valley, CA 3 Beds \| 2.5 Baths \| 1634 Sq. Ft.	$1,253,021
18005 Walnut Road, Castro Valley, CA 5 Beds \| 4 Baths \| 3300 Sq. Ft.	$1,657,076

Property information provided by MLSListings when last listed in 2025. 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 17838 Walnut Rd

Tax history for 17838 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 17838 Walnut Rd

More real estate resources