Google street view image for 20858 Missionary Ridge St, Walnut, CA 91789

Off market

$1,344,671

•

3 ba

•

2,972

sq ft

20858 Missionary Ridge St, Walnut, CA 91789

About this home

20858 Missionary Ridge St is a 2,972 square foot house on a 9,751 square foot lot with 4 bedrooms and 3 bathrooms. Based on Redfin's Walnut data, we estimate the home's value is $1,344,671.

Single-familyProperty Type

1981Year Built

9,751 sq ftLot Size

$452Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,344,671

$16K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.8% lower than the average sale price ($1.41M) of 6 comparable homes.

SOLD SEP 28, 2026
$1,435,000
A
4 beds2 baths2,455 sq ft
2016 Peaceful Hills Rd, Walnut, CA 91789
SOLD MAY 5, 2026
$1,556,000
B
4 beds3 baths2,978 sq ft
1389 S Lemon, Walnut, CA 91789
SOLD APR 1, 2026
$1,390,000
C
4 beds3 baths2,781 sq ft
20885 Starshine, Walnut, CA 91789
SOLD SEP 22, 2026
$1,748,000
D
4 beds3 baths2,690 sq ft
22105 Birds Eye Dr, Diamond Bar, CA 91765
Latitude 33 Real Estate
SOLD OCT 6, 2026
$1,275,000
E
4 beds3 baths3,019 sq ft
3581 Hawkwood, Diamond Bar, CA 91765
The Agency
SOLD OCT 23, 2026
$1,075,000
F
4 beds3 baths2,178 sq ft
20951 High Country, Walnut, CA 91789

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Earn from this home

Sell

$1,270,746

Est. take-home

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Rent

$4,580/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 20858 Missionary Ridge St

As the MLS and public records start to fill up, we'll list the details here.

Year

Property tax

Land + Additions

Assessment*

2025

$5,175 (+8.0%)

$98,346 + $272,693

$371,039

2024

$4,794 (+2.3%)

$96,418 + $267,347

$363,765

2023

$4,686 (+2.2%)

$94,528 + $262,105

$356,633

2022

$4,587 (+2.2%)

$92,675 + $256,966

$349,641

2021

$4,488 (+1.3%)

$90,858 + $251,928

$342,786

2020

$4,432 (+1.9%)

$89,077 + $246,989

$336,066

2019

$4,350 (+5.4%)

$88,164 + $244,457

$332,621

2018

$4,128 (+4.6%)

$86,436 + $239,664

$326,100

2017

$3,947 (+3.7%)

$83,081 + $230,358

$313,439

2016

$3,807 (−0.5%)

$83,081 + $230,358

$313,439

2015

$3,826 (−0.2%)

$81,452 + $225,842

$307,294

2014

$3,832 (+1.3%)

$78,658 + $218,093

$296,751

2012

$3,784 (+3.0%)

$78,303 + $217,108

$295,411

2011

$3,673 (+0.8%)

$76,768 + $212,851

$289,619

2010

$3,642 (+0.6%)

$75,263 + $208,678

$283,941

2009

$3,620 (+2.9%)

$74,701 + $207,119

$281,820

2008

$3,518

$74,879 + $207,612

$282,491

Tax history for 20858 Missionary Ridge St

Year

Property tax

Land + Additions

Assessment*

2025

$5,175 (+8.0%)

$98,346 + $272,693

$371,039

2024

$4,794 (+2.3%)

$96,418 + $267,347

$363,765

2023

$4,686 (+2.2%)

$94,528 + $262,105

$356,633

2022

$4,587 (+2.2%)

$92,675 + $256,966

$349,641

2021

$4,488 (+1.3%)

$90,858 + $251,928

$342,786

2020

$4,432 (+1.9%)

$89,077 + $246,989

$336,066

2019

$4,350 (+5.4%)

$88,164 + $244,457

$332,621

2018

$4,128 (+4.6%)

$86,436 + $239,664

$326,100

2017

$3,947 (+3.7%)

$83,081 + $230,358

$313,439

2016

$3,807 (−0.5%)

$83,081 + $230,358

$313,439

2015

$3,826 (−0.2%)

$81,452 + $225,842

$307,294

2014

$3,832 (+1.3%)

$78,658 + $218,093

$296,751

2012

$3,784 (+3.0%)

$78,303 + $217,108

$295,411

2011

$3,673 (+0.8%)

$76,768 + $212,851

$289,619

2010

$3,642 (+0.6%)

$75,263 + $208,678

$283,941

2009

$3,620 (+2.9%)

$74,701 + $207,119

$281,820

2008

$3,518

$74,879 + $207,612

$282,491

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

Zoning

Low Density Residential District

The RL zoning district is intended primarily for parcels developed with existing detached single-family dwellings. The maximum allowed density for new residential subdivisions within this zoning district will be three dwellings per gross acre. The RL zoning district is consistent with the low density residential land use category of the general plan.

Permitted uses

Include but are not limited to:

Livestock production
Housing-Single unit
Housing-Senior
Housing-Other
Infrastructure
Fire house
Police station
Park & open space

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 LOT 6

Lot Information
# of Buildings: 1
Land Sq. Ft: 9,751
Legal Lot Number: 6
Municipality Name: DIAMOND BAR
Acres: 0.2239
Depth Footage: 113
Front Footage: 59
Zoning Code: LCRPD1000064*
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: 9,751 square feet
Style: Single Family Residential
Year Built: 1981
Year Renovated: 1981
County: Los Angeles County
APN: 8765002006

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 • 2.0mi

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

6 days above 98° expected this year, 17 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

$1.28M – $1.55M

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New listings for sale in 91789

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322 La Tortola, Walnut, CA 91789

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22138 Portofino Dr, Walnut, CA 91789

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OPEN SAT, 1PM TO 4PM

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1034 E Romney Dr, Walnut, CA 91789

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950 Coronel Ct, Walnut, CA 91789

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Home values near 20858 Missionary Ridge St

Data from public records.

Address	Redfin Estimate
20898 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,251,263
20878 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,402,140
20842 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,535,878
20824 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,235,479
20819 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2275 Sq. Ft.	$1,225,121
20837 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,420,906
20855 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,681,256

Address	Redfin Estimate
20892 Missionary Ridge Street, Walnut, CA 3 Beds \| - Baths \| 2275 Sq. Ft.	$1,243,554
20870 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,458,851
20836 Missionary Ridge Street, Walnut, CA 2 Beds \| 2 Baths \| 1817 Sq. Ft.	$1,049,624
20818 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,370,346
20825 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,496,830
20843 Missionary Ridge Street, Walnut, CA 4 Beds \| 2.5 Baths \| 2979 Sq. Ft.	$1,591,310
20861 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,357,365

Address	Redfin Estimate
20886 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,352,896
20846 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 3501 Sq. Ft.	$1,462,896
20830 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2275 Sq. Ft.	$1,269,372
20812 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,399,827
20831 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,353,612
20849 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,365,992
20867 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,498,589

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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 20858 Missionary Ridge St

Tax history for 20858 Missionary Ridge St

Zoning

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 20858 Missionary Ridge St

More real estate resources