18005 Walnut Rd, Castro Valley, CA 94546

Off market aug 2001 for $575K

$1,657,076

Est. refi paymentEst. refi $3,921/mo

•

3,300

sq ft

18005 Walnut Rd, Castro Valley, CA 94546

About this home

Single-familyProperty Type

1951Year Built

0.31 acresLot Size

$502Est. Price/Sq.Ft.

2 car garageParking

Listed by Ron Sommer •DRE #01280363 • Greg Silva Realty

Bought with Ron Sommer •DRE #01280363 • Greg Silva Realty

Redfin checked: a few seconds ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #11100709

Redfin Estimate

$1,657,076

$1.1M since sold in August 2001$32K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 0.4% higher than the average sale price ($1.65M) of 6 comparable homes.

SOLD SEP 16, 2026
$1,798,000
A
3 beds3 baths3,029 sq ft
18009 Laird Ct, Castro Valley, CA 94546
SOLD JUL 24, 2026
$1,825,000
B
5 beds4 baths3,783 sq ft
16985 Lamont Ct, Castro Valley, CA 94546
SOLD MAY 27, 2026
$1,720,000
C
5 beds4.5 baths3,144 sq ft
4429 James Ave, Castro Valley, CA 94546
SOLD MAY 27, 2026
$1,726,000
D
5 beds2.5 baths2,936 sq ft
4205 Quail Hollow Pl, Castro Valley, CA 94546
SOLD AUG 11, 2026
$1,300,000
E
4 beds2 baths1,525 sq ft
4486 Lawrence Dr, Castro Valley, CA 94546
SOLD MAY 22, 2026
$1,530,750
F
4 beds3 baths2,954 sq ft
18522 Madison Ave, Castro Valley, CA 94546

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Earn from this home

Sell

$1,453,080

Est. take-home

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Refinance

Est. cash available

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Rent

$5,798/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 18005 Walnut Rd

Date

Event

Price

bridgeMLS, Bay East AOR, or Contra Costa AOR #11100709

Aug 20, 2001

Sold

$575,000

$174/sq ft

Jul 23, 2001

Listing Removed

—

Jun 3, 2001

Listed

$599,950

$182/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #10233835

Mar 25, 1997

Sold

$292,000

$88/sq ft

Jan 21, 1997

Listed

$292,000

$88/sq ft

Public Records

Jan 31, 1995

Sold

$325,000

$98/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$15,178 (+2.2%)

$259,912 + $984,071

$1,243,983

2024

$14,850 (+1.5%)

$254,817 + $964,778

$1,219,595

2023

$14,628 (+1.9%)

$249,821 + $945,865

$1,195,686

2022

$14,361 (+2.6%)

$240,121 + $909,142

$1,149,263

2021

$13,998 (+2.3%)

$240,121 + $909,142

$1,149,263

2020

$13,681 (−1.9%)

$235,414 + $891,318

$1,126,732

2019

$13,942 (+2.9%)

$233,000 + $882,182

$1,115,182

2018

$13,549 (+2.7%)

$228,433 + $864,889

$1,093,322

2017

$13,195 (+5.1%)

$219,564 + $831,310

$1,050,874

2016

$12,556 (+7.0%)

$219,564 + $831,310

$1,050,874

2015

$11,735 (+1.0%)

$215,261 + $815,015

$1,030,276

2014

$11,620 (+0.6%)

$207,876 + $787,057

$994,933

2013

$11,556 (+2.0%)

$207,876 + $787,057

$994,933

2012

$11,335 (+1.3%)

$206,937 + $783,505

$990,442

2011

$11,185 (+0.7%)

$202,880 + $768,144

$971,024

2010

$11,111 (−0.6%)

$198,902 + $753,084

$951,986

2009

$11,174 (+8.1%)

$197,417 + $747,459

$944,876

2008

$10,333

$197,886 + $749,235

$947,121

Tax history for 18005 Walnut Rd

Year

Property tax

Land + Additions

Assessment*

2025

$15,178 (+2.2%)

$259,912 + $984,071

$1,243,983

2024

$14,850 (+1.5%)

$254,817 + $964,778

$1,219,595

2023

$14,628 (+1.9%)

$249,821 + $945,865

$1,195,686

2022

$14,361 (+2.6%)

$240,121 + $909,142

$1,149,263

2021

$13,998 (+2.3%)

$240,121 + $909,142

$1,149,263

2020

$13,681 (−1.9%)

$235,414 + $891,318

$1,126,732

2019

$13,942 (+2.9%)

$233,000 + $882,182

$1,115,182

2018

$13,549 (+2.7%)

$228,433 + $864,889

$1,093,322

2017

$13,195 (+5.1%)

$219,564 + $831,310

$1,050,874

2016

$12,556 (+7.0%)

$219,564 + $831,310

$1,050,874

2015

$11,735 (+1.0%)

$215,261 + $815,015

$1,030,276

2014

$11,620 (+0.6%)

$207,876 + $787,057

$994,933

2013

$11,556 (+2.0%)

$207,876 + $787,057

$994,933

2012

$11,335 (+1.3%)

$206,937 + $783,505

$990,442

2011

$11,185 (+0.7%)

$202,880 + $768,144

$971,024

2010

$11,111 (−0.6%)

$198,902 + $753,084

$951,986

2009

$11,174 (+8.1%)

$197,417 + $747,459

$944,876

2008

$10,333

$197,886 + $749,235

$947,121

*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

0.31 Acres

Year renovated

1976

Sq. Ft.

4,672

Year built

1951

Style

Single Family Residential

County

Alameda County

APN

084D115802800

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

Property details

Parking

Parking Information
Has Attached Garage
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached, Garage

Interior

Bathroom Information
# of Bathrooms Total: 4
# of Bathrooms Full: 4

Interior Features
Interior Features: Family Room, Formal Dining Room, Eat-in Kitchen
Appliances: Dishwasher, Double Oven, Electric Range, Disposal
Laundry Features: Laundry Room
Upper Level Features: 2 Bedrooms, 2 Baths
Street Level Features: 3 Bedrooms, 2 Baths
Fireplaces Total: 3
Has Fireplace
Flooring: Hardwood, Tile, Carpet

Room Information
Kitchen Features: 220 Volt Outlet,Dishwasher,Double Oven,Eat In Kitchen,Electric Range/Cooktop,Garbage Disposal
Rooms Total: 9
Fireplace Features: Gas, Wood Burning

Exterior

Building Information
Construction Materials: Stucco
Building Area Total: 3,300
Foundation Details: Raised, Slab

Exterior Features
Patio And Porch Features: Deck
Exterior Features: Back Yard, Side Yard, Terraced Up
Roof: Shake

Property Information
Living Area: 3300
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1951

Lot Information
Lot Size Square Feet: 13363
Lot Size Area: 0.3
Lot Size Units: Acres
Lot Size Acres: 0.3
Lot Features: Corner Lot, Level, Sloped Up

Utilities

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

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: 4.0
Sq. Ft.: 4,672
Stories: 1.0
Lot Size: 0.31 acres
Style: Single Family Residential
Year Built: 1951
Year Renovated: 1976
County: Alameda County
APN: 084D115802800

Home facts updated by county records on Sep 17, 2026

Around this home

Schools

Chabot Elementary School

Public K-5 • Assigned • 0.7mi

9/10

Creekside Middle School

Public 6-8 • Assigned • 1.8mi

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

$1.58M – $1.91M

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Home values near 18005 Walnut Rd

Data from public records.

Address	Redfin Estimate
18036 Walnut Road, Castro Valley, CA 4 Beds \| 3 Baths \| 2602 Sq. Ft.	$1,604,904
18129 Walnut Road, Castro Valley, CA 3 Beds \| 3 Baths \| 1919 Sq. Ft.	$1,497,818

Address	Redfin Estimate
18024 Walnut Road, Castro Valley, CA 4 Beds \| 3 Baths \| 2202 Sq. Ft.	$1,716,120
18120 Walnut Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1530 Sq. Ft.	$1,224,995

Address	Redfin Estimate
18144 Walnut Road, Castro Valley, CA 4 Beds \| 3 Baths \| 3353 Sq. Ft.	$1,715,638
18016 Walnut Road, Castro Valley, CA 3 Beds \| 2.5 Baths \| 1526 Sq. Ft.	$1,272,153

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2001. 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 18005 Walnut Rd

Tax history for 18005 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 18005 Walnut Rd

More real estate resources