Google satellite image for 20879 Missionary Ridge St, Walnut, CA 91789

Off market dec 1991 for $162K

$1,362,902

Est. refi paymentEst. refi $1,172/mo

•

3 ba

•

2,972

sq ft

20879 Missionary Ridge St, Walnut, CA 91789

About this home

20879 Missionary Ridge St is a 2,972 square foot house on a 0.32 acre lot with 4 bedrooms and 3 bathrooms. - it last sold on December 05, 1991 for $162,000. Based on Redfin's Walnut data, we estimate the home's value is $1,362,902.

Single-familyProperty Type

1980Year Built

0.32 acresLot Size

$459Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,362,902

$1.2M since sold in December 1991$13K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 7.4% lower than the average sale price ($1.47M) of 6 comparable homes.

SOLD SEP 28, 2026
$1,380,000
A
4 beds3 baths2,712 sq ft
21504 Cold Spring Ln, Diamond Bar, CA 91765
SOLD MAY 5, 2026
$1,556,000
B
4 beds3 baths2,978 sq ft
1389 S Lemon, Walnut, CA 91789
SOLD SEP 22, 2026
$1,748,000
C
4 beds3 baths2,690 sq ft
22105 Birds Eye Dr, Diamond Bar, CA 91765
Latitude 33 Real Estate
BOUGHT WITH REDFIN SEP 14, 2026
$1,360,000
D
4 beds3 baths2,404 sq ft
20111 Evening Breeze Dr, Walnut, CA 91789
SOLD SEP 28, 2026
$1,435,000
E
4 beds2 baths2,455 sq ft
2016 Peaceful Hills Rd, Walnut, CA 91789
SOLD JUN 29, 2026
$1,350,000
F
4 beds3 baths2,334 sq ft
1715 Oxbow Ct, Diamond Bar, CA 91765

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Earn from this home

Sell

$1,287,989

Est. take-home

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Refinance

Est. cash available

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Rent

$4,610/mo

Redfin rental estimate

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Market trends in 91789, CA

Last updated October 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

OPEN SAT, 12PM TO 4PM
$1,550,000
4 beds3 baths1,874 sq ft
322 La Tortola, Walnut, CA 91789
OPEN SAT, 1PM TO 4PM
$1,450,000
4 beds2 baths2,053 sq ft
20092 Wildcat Canyon Rd, Walnut, CA 91789
Century 21 Masters
OPEN SAT, 2PM TO 4PM
$1,488,888
4 beds2 baths2,053 sq ft
20859 E Yellow Feather Cir, Walnut, CA 91789
OPEN SAT, 1PM TO 4PM
$1,588,000
4 beds3.5 baths2,473 sq ft
19935 Camino De Rosa, Walnut, CA 91789
$1,758,000
4 beds3 baths2,548 sq ft
838 Streamview, Walnut, CA 91789
$1,899,990
4 beds4 baths2,330 sq ft
22138 Portofino Dr, Walnut, CA 91789
OPEN SAT, 1PM TO 4PM
$777,000
3 beds2.5 baths1,846 sq ft
1034 E Romney Dr, Walnut, CA 91789
$1,200,000
4 beds3 baths2,763 sq ft
950 Coronel Ct, Walnut, CA 91789
OPEN SAT, 1PM TO 4PM
$310,000
3 beds2 baths1,740 sq ft
20739 LYCOMING St #44, Walnut, CA 91789
OPEN NOV 14, 11AM TO 5PM
$949,000
3 beds3 baths1,840 sq ft
826 Francesca, Walnut, CA 91789
See all

Provided by Redfin

Sale history for 20879 Missionary Ridge St

Year

Property tax

Land + Additions

Assessment*

2025

$6,029 (+4.1%)

$76,574 + $374,040

$450,614

2024

$5,791 (+2.3%)

$75,073 + $366,706

$441,779

2023

$5,660 (+2.1%)

$73,601 + $359,516

$433,117

2022

$5,544 (+2.1%)

$72,158 + $352,467

$424,625

2021

$5,431 (+1.2%)

$70,744 + $345,556

$416,300

2020

$5,364 (+1.9%)

$69,357 + $338,781

$408,138

2019

$5,266 (+6.5%)

$68,646 + $335,308

$403,954

2018

$4,944 (+4.6%)

$67,300 + $328,734

$396,034

2017

$4,726 (+3.5%)

$64,688 + $315,970

$380,658

2016

$4,567 (−0.5%)

$64,688 + $315,970

$380,658

2015

$4,591 (−0.2%)

$63,420 + $309,775

$373,195

2014

$4,601 (+1.2%)

$61,245 + $299,146

$360,391

2012

$4,546 (+3.0%)

$60,969 + $297,795

$358,764

2011

$4,414 (+0.8%)

$59,774 + $291,956

$351,730

2010

$4,379 (+0.5%)

$58,602 + $286,232

$344,834

2009

$4,358 (+2.8%)

$58,165 + $284,093

$342,258

2008

$4,239

$58,304 + $284,768

$343,072

Tax history for 20879 Missionary Ridge St

Year

Property tax

Land + Additions

Assessment*

2025

$6,029 (+4.1%)

$76,574 + $374,040

$450,614

2024

$5,791 (+2.3%)

$75,073 + $366,706

$441,779

2023

$5,660 (+2.1%)

$73,601 + $359,516

$433,117

2022

$5,544 (+2.1%)

$72,158 + $352,467

$424,625

2021

$5,431 (+1.2%)

$70,744 + $345,556

$416,300

2020

$5,364 (+1.9%)

$69,357 + $338,781

$408,138

2019

$5,266 (+6.5%)

$68,646 + $335,308

$403,954

2018

$4,944 (+4.6%)

$67,300 + $328,734

$396,034

2017

$4,726 (+3.5%)

$64,688 + $315,970

$380,658

2016

$4,567 (−0.5%)

$64,688 + $315,970

$380,658

2015

$4,591 (−0.2%)

$63,420 + $309,775

$373,195

2014

$4,601 (+1.2%)

$61,245 + $299,146

$360,391

2012

$4,546 (+3.0%)

$60,969 + $297,795

$358,764

2011

$4,414 (+0.8%)

$59,774 + $291,956

$351,730

2010

$4,379 (+0.5%)

$58,602 + $286,232

$344,834

2009

$4,358 (+2.8%)

$58,165 + $284,093

$342,258

2008

$4,239

$58,304 + $284,768

$343,072

*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: 31053
Living Sq. Ft: 2,972
# of Units: 1
Legal Description: TR=31053 POR OF LOT 30

Lot Information
# of Buildings: 1
Land Sq. Ft: 13,897
Legal Lot Number: 30
Municipality Name: DIAMOND BAR
Acres: 0.319
Zoning Code: LCRPD100006U*
County Use Description: SINGLE FAMILY RESID

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,972
Stories: —
Lot Size: 0.32 acres
Style: Single Family Residential
Year Built: 1980
Year Renovated: 1980
County: Los Angeles County
APN: 8765002047

Home facts updated by county records on Oct 7, 2026

Around this home

Schools

K - 12
Preschool & daycare

Evergreen Elementary School

Public K-5 • Assigned • 0.9mi

9/10

Chaparral Middle School

Public 6-8 • Assigned • 1.9mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 0.6mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

The Diamond Bar market is shifting, creating new opportunities for both buyers and sellers. Buyers have a bit more negotiating room, while well-priced, well-maintained homes can still attract strong interest. If you’re considering a move, I’d be...
1 week ago • Diamond Bar
Sang Ur
Redfin Premier agent
124 deals
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Climate risks

1/10 Flood Factor

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

4/10 Fire Factor

3% chance of being in a wildfire in next 30 years

5/10 Heat Factor

5 days above 98° expected this year, 15 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

6/10 Air Factor

10 unhealthy days expected this year, 13 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 9.5 hours in June and 6.9 hours in December, placing it above the U.S. average for solar exposure.

9.5 hrs

6.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.30M – $1.57M

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Country Queen Real Estate

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OPEN SAT, 1PM TO 4PM

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Century 21 Masters

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OPEN SAT, 1PM TO 4PM

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19935 Camino De Rosa, Walnut, CA 91789

Nextgen in-law suite • Private courtyard • Outdoor fireplace

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$1,899,990

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22138 Portofino Dr, Walnut, CA 91789

Panoramic views • Designer backsplash • Solar panel system

OPEN SAT, 1PM TO 4PM

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3 beds2.5 baths1,846 sq ft

1034 E Romney Dr, Walnut, CA 91789

Private entrance • Serene courtyard • Main-level den

$1,200,000

4 beds3 baths2,763 sq ft

950 Coronel Ct, Walnut, CA 91789

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OPEN SAT, 1PM TO 4PM

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Home values near 20879 Missionary Ridge St

Data from public records.

Address	Redfin Estimate
20892 Missionary Ridge St, Walnut, CA 3 Beds \| - Baths \| 2275 Sq. Ft.	$1,243,554
20870 Missionary Ridge St, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,458,851
20843 Missionary Ridge St, Walnut, CA 4 Beds \| 2.5 Baths \| 2979 Sq. Ft.	$1,591,310
20861 Missionary Ridge St, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,357,365
20891 Missionary Ridge St, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,253,269
2018 Shaded Wood Rd, Walnut, CA 4 Beds \| 3 Baths \| 2533 Sq. Ft.	$1,276,138
2029 Shaded Wood Rd, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,396,626

Address	Redfin Estimate
20886 Missionary Ridge St, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,352,896
20858 Missionary Ridge St, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,344,671
20849 Missionary Ridge St, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,365,992
20867 Missionary Ridge St, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,498,589
20885 Missionary Ridge St, Walnut, CA 5 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,591,977
2057 Shaded Wood Rd, Walnut, CA 3 Beds \| - Baths \| 1817 Sq. Ft.	$1,099,878
2015 Shaded Wood Rd, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,247,533

Address	Redfin Estimate
20878 Missionary Ridge St, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,402,140
20837 Missionary Ridge St, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,420,906
20855 Missionary Ridge St, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,681,256
20873 Missionary Ridge St, Walnut, CA 3 Beds \| - Baths \| 1817 Sq. Ft.	$1,160,333
2000 Shaded Wood Rd, Walnut, CA 3 Beds \| 2 Baths \| 1817 Sq. Ft.	$1,166,576
2043 Shaded Wood Rd, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,330,788
1989 Shaded Wood Rd, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,737,419

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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 20879 Missionary Ridge St

Tax history for 20879 Missionary Ridge St

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 20879 Missionary Ridge St

More real estate resources