18718 Walnut Rd, Castro Valley, CA 94546

Off Market Dec 2016 for $849K

$1,532,856

Est. refi paymentEst. refi $4,930/mo

•

2,180

sq ft

18718 Walnut Rd, Castro Valley, CA 94546

About this home

Single-familyProperty Type

1951Year Built

0.49 acresLot Size

$703Est. Price/Sq.Ft.

Listed by Brian Cooney •DRE #00993258 • RE/MAX Accord

Listed by Lourdes Beaty •DRE #01265365 • RE/MAX Accord

Bought with Victoria Dea •DRE #01947238 • Redfin

Redfin checked: a minute ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40755015

Redfin Estimate

$1,532,856

$684K since sold in December 2016$9,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 18.1% higher than the average sale price ($1.30M) 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 AUG 11, 2026
$1,300,000
B
4 beds2 baths1,525 sq ft
4486 Lawrence 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 MAY 18, 2026
$1,438,000
D
4 beds2.5 baths2,113 sq ft
17939 Lamson Rd, Castro Valley, CA 94546
SOLD AUG 21, 2025
$1,315,000
E
5 beds3 baths2,170 sq ft
17860 Almond Rd, 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

$912,381

Est. take-home

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Refinance

Est. cash available

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Rent

$4,215/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 18718 Walnut Rd

Date

Event

Price

bridgeMLS, Bay East AOR, or Contra Costa AOR #40070837

Jun 20, 2017

Listing Removed

—

bridgeMLS, Bay East AOR, or Contra Costa AOR #40755015

Dec 17, 2016

Sold

$849,000

$389/sq ft

Nov 17, 2016

Pending

—

Nov 15, 2016

Price Changed

$849,000

$389/sq ft

Oct 19, 2016

Price Changed

$879,000

$403/sq ft

Oct 18, 2016

Relisted

—

Oct 14, 2016

Listing Removed

—

Aug 26, 2016

Listed

$899,888

$413/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #40073796

Jun 3, 2005

Sold

$795,000

$365/sq ft

May 11, 2005

Listing Removed

—

Apr 15, 2005

Listed

$795,000

$365/sq ft

Public Records

Jul 3, 1991

Sold

$350,000

$161/sq ft

Public Records

Jan 22, 1988

Sold

$229,000

$105/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$12,414 (+2.2%)

$295,594 + $689,720

$985,314

2024

$12,142 (+1.6%)

$295,594 + $689,720

$985,314

2023

$11,955 (+1.9%)

$289,800 + $676,200

$966,000

2022

$11,732 (+2.6%)

$278,547 + $649,944

$928,491

2021

$11,434 (+2.3%)

$278,547 + $649,944

$928,491

2020

$11,174 (−1.8%)

$273,086 + $637,202

$910,288

2019

$11,384 (+2.9%)

$270,287 + $630,671

$900,958

2018

$11,063 (+2.7%)

$264,989 + $618,309

$883,298

2017

$10,773 (+4.2%)

$254,700 + $594,300

$849,000

2016

$10,340 (+25.4%)

$254,700 + $594,300

$849,000

2015

$8,244 (+0.5%)

$252,000 + $588,000

$840,000

2014

$8,205 (+9.2%)

$207,000 + $483,000

$690,000

2013

$7,513 (+0.1%)

$207,000 + $483,000

$690,000

2012

$7,503 (−4.1%)

$225,000 + $405,000

$630,000

2011

$7,825

$189,000 + $441,000

$630,000

2010

$7,827 (−4.8%)

$196,500 + $458,500

$655,000

2009

$8,223 (−7.7%)

$196,500 + $458,500

$655,000

2008

$8,907

$206,300 + $481,600

$687,900

Tax history for 18718 Walnut Rd

Year

Property tax

Land + Additions

Assessment*

2025

$12,414 (+2.2%)

$295,594 + $689,720

$985,314

2024

$12,142 (+1.6%)

$295,594 + $689,720

$985,314

2023

$11,955 (+1.9%)

$289,800 + $676,200

$966,000

2022

$11,732 (+2.6%)

$278,547 + $649,944

$928,491

2021

$11,434 (+2.3%)

$278,547 + $649,944

$928,491

2020

$11,174 (−1.8%)

$273,086 + $637,202

$910,288

2019

$11,384 (+2.9%)

$270,287 + $630,671

$900,958

2018

$11,063 (+2.7%)

$264,989 + $618,309

$883,298

2017

$10,773 (+4.2%)

$254,700 + $594,300

$849,000

2016

$10,340 (+25.4%)

$254,700 + $594,300

$849,000

2015

$8,244 (+0.5%)

$252,000 + $588,000

$840,000

2014

$8,205 (+9.2%)

$207,000 + $483,000

$690,000

2013

$7,513 (+0.1%)

$207,000 + $483,000

$690,000

2012

$7,503 (−4.1%)

$225,000 + $405,000

$630,000

2011

$7,825

$189,000 + $441,000

$630,000

2010

$7,827 (−4.8%)

$196,500 + $458,500

$655,000

2009

$8,223 (−7.7%)

$196,500 + $458,500

$655,000

2008

$8,907

$206,300 + $481,600

$687,900

*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

0.49 Acres

Year renovated

1975

Sq. Ft.

2,180

Year built

1951

Style

Single Family Residential

County

Alameda County

APN

084D116803005

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

Jul 1, 2024 • Final

Building

Resurface an existing pool by removing and replacing the surface, tile, coping, skimmer, and mastic. Remove the existing recessed wall steps and hand rails, and upgrade the heater to a more efficient model.

Pool and hot tub

Remodel

Nov 17, 2022 • Final

Building

Tear off existing roofing and install new composition asphalt shingles on a residential building. Use the existing roof deck and install felt underlayment.

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 Information
Parking Features: Off Street, Parking Spaces, Parking Lot

Interior

Bathroom Information
# of Bathrooms Total: 3
# of Bathrooms Full: 3
Other Bathrooms Included Features: Stall Shower

Interior Features
Interior Features: Storage, Tile Counters
Laundry Features: Laundry Room
Upper Level Features: 1 Bedroom
Street Level Features: 3 Bedrooms, 2 Baths
Fireplaces Total: 1
Has Fireplace
Flooring: Tile, Vinyl, Carpet, Wood

Room Information
Kitchen Features: Counter - Tile
Rooms Total: 7
Fireplace Features: Living Room

Exterior

Building Information
Construction Materials: Stucco
Building Area Total: 2,180
Builder Name: Custom

Exterior Features
Patio And Porch Features: Deck, Patio
Exterior Features: Dog Run, Garden/Play, Terraced Down
Door Features: Mirrored Closet Door(s)
Roof: Shingle

Pool Information
Pool Features: In Ground
Has Private Pool

Property Information
Living Area: 2180
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1951

Lot Information
Lot Size Square Feet: 21280
Lot Size Area: 0.488522
Lot Size Units: Acres
Lot Size Acres: 0.488522
Lot Features: Cul-De-Sac, Sloped Down, Vineyard
Zoning: 1001

Utilities

Utility Information
Sewer: Public Sewer

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: 2.0
Sq. Ft.: 2,180
Stories: 1.0
Lot Size: 0.49 acres
Style: Single Family Residential
Year Built: 1951
Year Renovated: 1975
County: Alameda County
APN: 084D116803005

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

$1.46M – $1.76M

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Nearby similar homes

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VIDEO TOUR

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New listings for sale in 94546

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

Home values near 18718 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
18713 Walnut Road, Castro Valley, CA 5 Beds \| 3 Baths \| 2893 Sq. Ft.	$1,720,032

Address	Redfin Estimate
18616 Walnut Road, Castro Valley, CA 4 Beds \| 3 Baths \| 2754 Sq. Ft.	$1,384,374
18701 Walnut Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1597 Sq. Ft.	$1,263,528

Address	Redfin Estimate
18749 Walnut Road, Castro Valley, CA 3 Beds \| 2 Baths \| 1532 Sq. Ft.	$1,218,819
18734 Walnut Road, Castro Valley, CA 4 Beds \| 3 Baths \| 1980 Sq. Ft.	$1,327,082

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2016. 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 18718 Walnut Rd

Tax history for 18718 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 18718 Walnut Rd

More real estate resources