Google street view image for 20331 Shadow Mountain Rd, Walnut, CA 91789

Off Market Nov 1986 for $142K

$1,133,964

Est. refi paymentEst. refi $1,022/mo

•

3 ba

•

1,951

sq ft

20331 Shadow Mountain Rd, Walnut, CA 91789

About this home

20331 Shadow Mountain Rd is a 1,951 square foot house on a 8,625 square foot lot with 4 bedrooms and 3 bathrooms. - it last sold on November 10, 1986 for $142,500. Based on Redfin's Walnut data, we estimate the home's value is $1,133,964.

Single-familyProperty Type

1964Year Built

8,625 sq ftLot Size

$581Est. Price/Sq.Ft.

2 car garageParking

Source:Public Records

Redfin Estimate

$1,133,964

$991K since sold in November 1986$1,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 2.8% higher than the average sale price ($1.10M) of 5 comparable homes.

SOLD AUG 18, 2026
$1,200,000
A
4 beds2 baths1,831 sq ft
1602 Chestnut Hl, Walnut, CA 91789
SOLD MAY 21, 2026
$1,180,000
B
4 beds3 baths1,969 sq ft
20317 Alta Hacienda, Walnut, CA 91789
SOLD JUL 1, 2026
$1,000,000
C
4 beds2 baths1,582 sq ft
20672 Buckland Dr, Walnut, CA 91789
SOLD JUL 1, 2026
$1,018,888
D
4 beds3 baths2,044 sq ft
1370 Wake Frst, Walnut, CA 91789
SOLD AUG 6, 2026
$1,115,000
E
3 beds2 baths1,672 sq ft
20359 Lake Erie, Walnut, CA 91789

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Earn from this home

Sell

$1,071,448

Est. take-home

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Refinance

Est. cash available

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Rent

$4,089/mo

Redfin rental estimate

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Market trends in 91789, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.6%

+0.4% MoM

Median sale price

$1.2M

$271 MoM

Avg. days on market

39d

4 days MoM

Recently sold homes

1 MoM

New listings for sale

NEW 17 HRS AGO
$796,660
4 beds3 baths1,846 sq ft
1034 E Romney Dr, Diamond Bar, CA 91789
COMING SOON
$1,650,000
5 beds4 baths3,036 sq ft
20603 Vejar Rd, Walnut, CA 91789
OPEN SEP 26, 11AM TO 2PM
$775,000
4 beds3 baths2,932 sq ft
949 Fontes, Walnut, CA 91789
OPEN TODAY, 1PM TO 4PM
$899,000
3 beds2 baths1,463 sq ft
712 Marylie Ln, Walnut, CA 91789
COMING SOON
$1,125,000
4 beds3 baths1,756 sq ft
19564 Vista Hermosa Dr, Walnut, CA 91789
OPEN TODAY, 1AM TO 4PM
$880,000
3 beds2 baths1,360 sq ft
1012 Farel, Diamond Bar, CA 91789
$1,698,000
8 beds6 baths3,332 sq ft
20122 Candleflame Ct, Walnut, CA 91789
OPEN TODAY, 1PM TO 4PM
$1,180,000
4 beds3 baths1,714 sq ft
1118 Clorinda, Diamond Bar, CA 91789
OPEN TODAY, 2PM TO 4PM
$1,760,000
4 beds3 baths2,646 sq ft
625 N Pacer Ct, Walnut, CA 91789
OPEN TODAY, 11AM TO 1PM
$1,950,000
4 beds3 baths2,575 sq ft
20739 E Walnut Cyn, Walnut, CA 91789
See all

Provided by Redfin

Redfin agents who toured

Canton views from the rear of the home. The home has been remodeled throughout.
9 years ago• May not reflect the current state of the home
Michael Drylie
Redfin Associate agent

Sale history for 20331 Shadow Mountain Rd

Year

Property tax

Land + Additions

Assessment*

2025

$4,255 (+8.2%)

$111,263 + $166,905

$278,168

2024

$3,932 (+5.0%)

$111,263 + $166,905

$278,168

2023

$3,744 (+2.1%)

$109,082 + $163,633

$272,715

2022

$3,668 (+2.1%)

$106,944 + $160,425

$267,369

2021

$3,593 (+1.2%)

$104,848 + $157,280

$262,128

2020

$3,551 (+1.8%)

$102,793 + $154,197

$256,990

2019

$3,487 (+6.1%)

$101,739 + $152,616

$254,355

2018

$3,288 (+4.4%)

$99,745 + $149,624

$249,369

2017

$3,150 (+3.4%)

$95,873 + $143,815

$239,688

2016

$3,046 (−0.5%)

$95,873 + $143,815

$239,688

2015

$3,061 (−0.3%)

$93,994 + $140,996

$234,990

2014

$3,071 (+1.4%)

$90,770 + $136,159

$226,929

2012

$3,029 (+3.0%)

$90,360 + $135,544

$225,904

2011

$2,942 (+0.9%)

$88,589 + $132,887

$221,476

2010

$2,916 (+0.7%)

$86,852 + $130,282

$217,134

2009

$2,895 (+2.9%)

$86,203 + $129,309

$215,512

2008

$2,813

$86,408 + $129,617

$216,025

Tax history for 20331 Shadow Mountain Rd

Year

Property tax

Land + Additions

Assessment*

2025

$4,255 (+8.2%)

$111,263 + $166,905

$278,168

2024

$3,932 (+5.0%)

$111,263 + $166,905

$278,168

2023

$3,744 (+2.1%)

$109,082 + $163,633

$272,715

2022

$3,668 (+2.1%)

$106,944 + $160,425

$267,369

2021

$3,593 (+1.2%)

$104,848 + $157,280

$262,128

2020

$3,551 (+1.8%)

$102,793 + $154,197

$256,990

2019

$3,487 (+6.1%)

$101,739 + $152,616

$254,355

2018

$3,288 (+4.4%)

$99,745 + $149,624

$249,369

2017

$3,150 (+3.4%)

$95,873 + $143,815

$239,688

2016

$3,046 (−0.5%)

$95,873 + $143,815

$239,688

2015

$3,061 (−0.3%)

$93,994 + $140,996

$234,990

2014

$3,071 (+1.4%)

$90,770 + $136,159

$226,929

2012

$3,029 (+3.0%)

$90,360 + $135,544

$225,904

2011

$2,942 (+0.9%)

$88,589 + $132,887

$221,476

2010

$2,916 (+0.7%)

$86,852 + $130,282

$217,134

2009

$2,895 (+2.9%)

$86,203 + $129,309

$215,512

2008

$2,813

$86,408 + $129,617

$216,025

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Property details

Interior

Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central

Exterior

Property Information
Subdivision Name: 27485
Living Sq. Ft: 1,951
# of Units: 1
Legal Description: TRACT NO 27485 LOT 30

Lot Information
# of Buildings: 1
Land Sq. Ft: 8,625
Legal Lot Number: 30
Municipality Name: WALNUT
Acres: 0.198
Depth Footage: 112
Front Footage: 90
Zoning Code: WAR18500*
County Use Description: SINGLE FAMILY RESID

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 1,951
Stories: —
Lot Size: 8,625 square feet
Style: Single Family Residential
Year Built: 1964
Year Renovated: 1964
County: Los Angeles County
APN: 8712008019

Home facts updated by county records on Aug 30, 2026

Around this home

Schools

Collegewood Elementary School

Public K-5 • Assigned • 0.3mi

9/10

Suzanne Middle School

Public 6-8 • Assigned • 1.7mi

10/10

Walnut High School

Public 9-12 • Assigned • 1.9mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

The real estate market is becoming more balanced. Buyers have more inventory, more data, and more time to make informed decisions than they did a year ago. Well-priced homes are still moving quickly, but today’s market rewards preparation, strategy,...
2 months ago • Los Angeles County
Peter Santos
Redfin Premier agent
82 deals
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Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

6/10 Heat Factor

6 days above 99° expected this year, 17 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

13 unhealthy days expected this year, 14 days in 30 years

Provided by First Street

Historical weather

Walnut, CA • 91789

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 9.9 hours in June and 6.8 hours in December, placing it above the U.S. average for solar exposure.

9.9 hrs

6.8 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.08M – $1.31M

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19564 Vista Hermosa Dr, Walnut, CA 91789

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Home values near 20331 Shadow Mountain Rd

Data from public records.

Address	Redfin Estimate
20321 Shadow Mountain Road, Walnut, CA 3 Beds \| 3 Baths \| 2157 Sq. Ft.	$1,207,118
20405 Shadow Mountain Road, Walnut, CA 4 Beds \| 3 Baths \| 1951 Sq. Ft.	$1,327,086

Address	Redfin Estimate
20341 Shadow Mountain Road, Walnut, CA 3 Beds \| 2 Baths \| 2040 Sq. Ft.	$1,335,094
20415 Shadow Mountain Road, Walnut, CA 3 Beds \| 2 Baths \| 2040 Sq. Ft.	$1,136,471

Address	Redfin Estimate
20401 Shadow Mountain Road, Walnut, CA 4 Beds \| - Baths \| 1836 Sq. Ft.	$1,178,633
20309 Shadow Mountain Road, Walnut, CA 4 Beds \| 2 Baths \| 1836 Sq. Ft.	$1,258,716

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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 91789, CA

Redfin agents who toured

Sale history for 20331 Shadow Mountain Rd

Tax history for 20331 Shadow Mountain Rd

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 91789

Home values near 20331 Shadow Mountain Rd

More real estate resources