Google street view image for 20506 Shadow Mountain Rd, Walnut, CA 91789

Off market feb 1991 for $250K

$1,049,309

Est. refi paymentEst. refi $1,635/mo

•

2 ba

•

1,719

sq ft

20506 Shadow Mountain Rd, Walnut, CA 91789

About this home

20506 Shadow Mountain Rd is a 1,719 square foot house on a 0.33 acre lot with 3 bedrooms and 2 bathrooms. - it last sold on February 01, 1991 for $250,000. Based on Redfin's Walnut data, we estimate the home's value is $1,049,309.

Single-familyProperty Type

1964Year Built

0.33 acresLot Size

$610Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,049,309

$799K since sold in February 1991$3,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 9.7% lower than the average sale price ($1.16M) of 6 comparable homes.

SOLD AUG 18, 2026
$1,200,000
A
4 beds2 baths1,831 sq ft
1602 Chestnut Hl, Walnut, CA 91789
SOLD MAY 18, 2026
$1,350,000
B
3 beds2 baths1,703 sq ft
20105 Shadow Mtn, Walnut, CA 91789
SOLD AUG 6, 2026
$1,115,000
C
3 beds2 baths1,672 sq ft
20359 Lake Erie, Walnut, CA 91789
SOLD DEC 2, 2025
$1,080,000
D
3 beds2 baths2,039 sq ft
1732 Silvercrest Way, Walnut, CA 91789
SOLD SEP 23, 2026
$1,050,000
E
4 beds2 baths1,582 sq ft
1339 Wesleyan, Walnut, CA 91789
SOLD MAY 21, 2026
$1,180,000
F
4 beds3 baths1,969 sq ft
20317 Alta Hacienda, Walnut, CA 91789

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Earn from this home

Sell

$991,377

Est. take-home

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Est. cash available

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Rent

$3,601/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

$999,000
4 beds2 baths1,753 sq ft
850 Darius, Walnut, CA 91789
OPEN TODAY, 12PM TO 4PM
$985,000
3 beds2 baths1,585 sq ft
19200 Tuttle Creek Pl, Walnut, CA 91789
OPEN TODAY, 12PM TO 3PM
$985,000
4 beds2 baths1,588 sq ft
448 Acaso, Walnut, CA 91789
OPEN TODAY, 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 TODAY, 10AM TO 1PM
$1,430,000
5 beds2.5 baths2,495 sq ft
19855 Vista Hermosa Dr S, Walnut, CA 91789
OPEN TODAY, 11AM TO 2PM
$1,100,000
3 beds2 baths1,420 sq ft
361 Calle Caballeros, Walnut, CA 91789
OPEN TODAY, 11AM TO 4PM
$2,298,000
5 beds5 baths3,574 sq ft
19779 Arbor Ridge Dr, Walnut, CA 91789
OPEN TODAY, 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

Sale history for 20506 Shadow Mountain Rd

Year

Property tax

Land + Additions

Assessment*

2025

$6,182 (+6.0%)

$352,857 + $107,057

$459,914

2024

$5,833 (+3.3%)

$345,939 + $104,958

$450,897

2023

$5,647 (+3.0%)

$339,156 + $102,900

$442,056

2022

$5,482 (+2.0%)

$332,506 + $100,883

$433,389

2021

$5,376 (+1.2%)

$325,987 + $98,905

$424,892

2020

$5,311 (+1.9%)

$319,596 + $96,966

$416,562

2019

$5,211 (+5.4%)

$316,319 + $95,972

$412,291

2018

$4,945 (+4.6%)

$310,117 + $94,091

$404,208

2017

$4,727 (+3.1%)

$298,076 + $90,439

$388,515

2016

$4,583 (−0.5%)

$298,076 + $90,439

$388,515

2015

$4,608 (−0.2%)

$292,232 + $88,666

$380,898

2014

$4,619 (+1.3%)

$282,205 + $85,625

$367,830

2012

$4,562 (+3.0%)

$280,930 + $85,239

$366,169

2011

$4,430 (+0.8%)

$275,422 + $83,568

$358,990

2010

$4,395 (+0.4%)

$270,022 + $81,930

$351,952

2009

$4,376 (+2.8%)

$268,004 + $81,318

$349,322

2008

$4,255

$268,641 + $81,512

$350,153

Tax history for 20506 Shadow Mountain Rd

Year

Property tax

Land + Additions

Assessment*

2025

$6,182 (+6.0%)

$352,857 + $107,057

$459,914

2024

$5,833 (+3.3%)

$345,939 + $104,958

$450,897

2023

$5,647 (+3.0%)

$339,156 + $102,900

$442,056

2022

$5,482 (+2.0%)

$332,506 + $100,883

$433,389

2021

$5,376 (+1.2%)

$325,987 + $98,905

$424,892

2020

$5,311 (+1.9%)

$319,596 + $96,966

$416,562

2019

$5,211 (+5.4%)

$316,319 + $95,972

$412,291

2018

$4,945 (+4.6%)

$310,117 + $94,091

$404,208

2017

$4,727 (+3.1%)

$298,076 + $90,439

$388,515

2016

$4,583 (−0.5%)

$298,076 + $90,439

$388,515

2015

$4,608 (−0.2%)

$292,232 + $88,666

$380,898

2014

$4,619 (+1.3%)

$282,205 + $85,625

$367,830

2012

$4,562 (+3.0%)

$280,930 + $85,239

$366,169

2011

$4,430 (+0.8%)

$275,422 + $83,568

$358,990

2010

$4,395 (+0.4%)

$270,022 + $81,930

$351,952

2009

$4,376 (+2.8%)

$268,004 + $81,318

$349,322

2008

$4,255

$268,641 + $81,512

$350,153

*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
Heating Type: Central

Exterior

Property Information
Subdivision Name: 27485
Living Sq. Ft: 1,719
# of Units: 1
Legal Description: TRACT NO 27485 LOT 19

Lot Information
# of Buildings: 1
Land Sq. Ft: 14,548
Legal Lot Number: 19
Municipality Name: WALNUT
Acres: 0.334
Depth Footage: 95
Front Footage: 154
Zoning Code: WAR18500*
County Use Description: SINGLE FAMILY RESID

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 1,719
Stories: —
Lot Size: 0.33 acres
Style: Single Family Residential
Year Built: 1964
Year Renovated: 1964
County: Los Angeles County
APN: 8712007002

Home facts updated by county records on Oct 7, 2026

Around this home

Schools

Collegewood Elementary School

Public K-5 • Assigned • 0.2mi

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

7 days above 99° expected this year, 19 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

$997,000 – $1.21M

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OPEN TODAY, 11AM TO 2PM

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361 Calle Caballeros, Walnut, CA 91789

OPEN TODAY, 11AM TO 4PM

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OPEN TODAY, 2PM TO 4PM

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Home values near 20506 Shadow Mountain Rd

Data from public records.

Address	Redfin Estimate
20554 Shadow Mountain Road, Walnut, CA 4 Beds \| 3 Baths \| 2164 Sq. Ft.	$1,461,823
20531 Shadow Mountain Road, Walnut, CA 4 Beds \| 2 Baths \| 1836 Sq. Ft.	$1,057,198

Address	Redfin Estimate
20432 Shadow Mountain Road, Walnut, CA 3 Beds \| 2 Baths \| 1789 Sq. Ft.	$1,181,395
20537 Shadow Mountain Road, Walnut, CA 3 Beds \| - Baths \| 2040 Sq. Ft.	$989,826

Address	Redfin Estimate
20505 Shadow Mountain Road, Walnut, CA 4 Beds \| 2 Baths \| 1836 Sq. Ft.	$1,122,341
20549 Shadow Mountain Road, Walnut, CA 3 Beds \| 2 Baths \| 1799 Sq. Ft.	$1,019,749

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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

Sale history for 20506 Shadow Mountain Rd

Tax history for 20506 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 20506 Shadow Mountain Rd

More real estate resources