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

Off market nov 1986 for $142K

$1,122,479

Est. refi paymentEst. refi $1,065/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 $1,122,479.

Single-familyProperty Type

1964Year Built

8,625 sq ftLot Size

$575Est. Price/Sq.Ft.

2 car garageParking

Source:Public Records

Redfin Estimate

$1,122,479

$980K since sold in November 1986$11K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 2% lower than the average sale price ($1.15M) 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 OCT 16, 2026
$1,180,000
B
4 beds2.5 baths2,074 sq ft
1310 Heidelberg Ave, Walnut, CA 91789
AG One Realty Inc.
SOLD MAY 21, 2026
$1,180,000
C
4 beds3 baths1,969 sq ft
20317 Alta Hacienda, Walnut, CA 91789
SOLD SEP 23, 2026
$1,050,000
D
4 beds2 baths1,582 sq ft
1339 Wesleyan, 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

$1,060,585

Est. take-home

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Refinance

Est. cash available

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Rent

$4,023/mo

Redfin rental estimate

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Market trends in 91789, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

98.8%

0.5% MoM

Median sale price

$1.3M

$21K MoM

Avg. days on market

41d

9 days MoM

Recently sold homes

3 MoM

New listings for sale

COMING SOON
$999,000
4 beds2 baths1,753 sq ft
850 Darius, Walnut, CA 91789
OPEN SUN, 12PM TO 4PM
$985,000
3 beds2 baths1,585 sq ft
19200 Tuttle Creek Pl, Walnut, CA 91789
OPEN SUN, 12PM TO 3PM
$985,000
4 beds2 baths1,588 sq ft
448 Acaso, Walnut, CA 91789
OPEN SUN, 1PM TO 3PM
$1,698,000
5 beds2.5 baths2,519 sq ft
20951 Stoddard Wells Rd, Walnut, CA 91789
RE/MAX Galaxy
$425,000
2 beds2 baths1,040 sq ft
835 Francesca Dr #103, Walnut, CA 91789
OPEN SUN, 10AM TO 1PM
$1,430,000
5 beds2.5 baths2,495 sq ft
19855 Vista Hermosa Dr S, Walnut, CA 91789
OPEN SUN, 11AM TO 2PM
$1,100,000
3 beds2 baths1,420 sq ft
361 Calle Caballeros, Walnut, CA 91789
OPEN SUN, 11AM TO 4PM
$2,298,000
5 beds5 baths3,574 sq ft
19779 Arbor Ridge Dr, Walnut, CA 91789
OPEN SUN, 2PM TO 4PM
$1,200,000
3 beds2.5 baths1,811 sq ft
21138 Valleyview, Walnut, CA 91789
$948,000
4 beds3 baths1,830 sq ft
21010 Cornerstone, 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%)

$113,488 + $170,243

$283,731

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%)

$113,488 + $170,243

$283,731

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: 2026

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 Oct 7, 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

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

$1.07M – $1.29M

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New listings for sale in 91789

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OPEN SUN, 11AM TO 2PM

$1,100,000

3 beds2 baths1,420 sq ft

361 Calle Caballeros, Walnut, CA 91789

OPEN SUN, 11AM TO 4PM

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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.	$1,227,652
20405 Shadow Mountain Road, Walnut, CA 4 Beds \| 3 Baths \| 1951 Sq. Ft.	$1,327,558

Address	Redfin Estimate
20341 Shadow Mountain Road, Walnut, CA 3 Beds \| 2 Baths \| 2040 Sq. Ft.	$1,334,608
20415 Shadow Mountain Road, Walnut, CA 3 Beds \| 2 Baths \| 2040 Sq. Ft.	$1,123,427

Address	Redfin Estimate
20401 Shadow Mountain Road, Walnut, CA 4 Beds \| - Baths \| 1836 Sq. Ft.	$1,175,482
20309 Shadow Mountain Road, Walnut, CA 4 Beds \| 2 Baths \| 1836 Sq. Ft.	$1,267,438

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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

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