20842 Missionary Ridge St, Walnut, CA 91789

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Off market may 2013 for $810K

$1,535,878

Est. refi paymentEst. refi $4,715/mo

•

2,972

sq ft

20842 Missionary Ridge St, Walnut, CA 91789

About this home

BACK ON THE MARKET!!! Just fail the escrow. THIS TURN KEY PLAN MANY UPGRADED FEATURES AND IS PERFECT FOR ANYONE WHO IS READY TO MOVE IN AND CALL IT "HOME" 4 bedroom ( 1-down, 3-up ) 3 bath ( 1-down, 2-up ) with huge bonusroom ( up ) might be 5th bedroom. * * Features : new cabinet, granite counter top and new tile flooring in Kitchen, New interior painting, wooden floor and new carpet. good size of back yard with pool and spa which just refinished surface. WALKING DISTANCE to South pointe JR. HIGH and Diamond Bar HIGH SCHOOL. MUST SEE!!!!

Single-familyProperty Type

1980Year Built

10,209 sq ftLot Size

$517Est. Price/Sq.Ft.

3 car garageParking

Listed by Justin Yoo •DRE #01242971 • Masters Realty Eastern Group

Bought with Amy Hsiao •DRE #01095112 • ReMax 2000 Realty

Redfin checked: 3 minutes ago

•Source:CRMLS #TR13007316

Redfin Estimate

$1,535,878

$726K since sold in May 2013$11K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 5.3% higher than the average sale price ($1.46M) of 6 comparable homes.

SOLD MAY 5, 2026
$1,556,000
A
4 beds3 baths2,978 sq ft
1389 S Lemon, Walnut, CA 91789
SOLD SEP 28, 2026
$1,435,000
B
4 beds2 baths2,455 sq ft
2016 Peaceful Hills Rd, 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
SOLD APR 1, 2026
$1,390,000
D
4 beds3 baths2,781 sq ft
20885 Starshine, Walnut, CA 91789
SOLD JUL 10, 2026
$1,350,000
E
4 beds3 baths2,268 sq ft
1754 Leaning Pne, Diamond Bar, CA 91765
SOLD OCT 6, 2026
$1,275,000
F
4 beds3 baths3,019 sq ft
3581 Hawkwood, Diamond Bar, CA 91765
The Agency

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Earn from this home

Sell

$1,004,599

Est. take-home

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Refinance

Est. cash available

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Rent

$4,774/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 20842 Missionary Ridge St

Year

Property tax

Land + Additions

Assessment*

2025

$12,489 (+5.0%)

$457,700 + $547,132

$1,004,832

2024

$11,897 (+2.5%)

$448,726 + $536,404

$985,130

2023

$11,612 (+2.1%)

$439,928 + $525,887

$965,815

2022

$11,372 (+1.9%)

$431,302 + $515,576

$946,878

2021

$11,159 (+1.3%)

$422,846 + $505,467

$928,313

2020

$11,016 (+2.0%)

$414,555 + $495,556

$910,111

2019

$10,805 (+4.6%)

$410,305 + $490,475

$900,780

2018

$10,332 (+4.8%)

$402,260 + $480,858

$883,118

2017

$9,856 (+58.4%)

$386,641 + $462,187

$848,828

2016

$6,224

$386,641 + $462,187

$848,828

2015

$6,224

$379,060 + $453,125

$832,185

2010

$6,224

$211,467 + $317,203

$528,670

2009

$6,224

$211,467 + $317,203

$528,670

2008

$6,224

$211,467 + $317,203

$528,670

Tax history for 20842 Missionary Ridge St

Year

Property tax

Land + Additions

Assessment*

2025

$12,489 (+5.0%)

$457,700 + $547,132

$1,004,832

2024

$11,897 (+2.5%)

$448,726 + $536,404

$985,130

2023

$11,612 (+2.1%)

$439,928 + $525,887

$965,815

2022

$11,372 (+1.9%)

$431,302 + $515,576

$946,878

2021

$11,159 (+1.3%)

$422,846 + $505,467

$928,313

2020

$11,016 (+2.0%)

$414,555 + $495,556

$910,111

2019

$10,805 (+4.6%)

$410,305 + $490,475

$900,780

2018

$10,332 (+4.8%)

$402,260 + $480,858

$883,118

2017

$9,856 (+58.4%)

$386,641 + $462,187

$848,828

2016

$6,224

$386,641 + $462,187

$848,828

2015

$6,224

$379,060 + $453,125

$832,185

2010

$6,224

$211,467 + $317,203

$528,670

2009

$6,224

$211,467 + $317,203

$528,670

2008

$6,224

$211,467 + $317,203

$528,670

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

Public record

Public record
Zoning

Beds

Baths

Stories

—

Lot width

—

Lot depth

—

Lot size

10,212 Sq. Ft.

Year renovated

1980

Sq. Ft.

2,972

Year built

1980

Style

Single Family Residential

County

Los Angeles County

APN

8765002008

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 7, 2026.

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

Parking

Parking / Garage Information
# of Garage Spaces: 3
# of Parking Spaces: 3

Interior

Kitchen Information
Formal Dining Room

Bathroom Information
# of Baths (Full): 3

Cooling Information
Central
Has Cooling

Room Information
Bonus Room

Fireplace Information
Family Room
Has Fireplace

Flooring Information
Laminated, Carpet, Stone

Heating Information
Central Furnace
Has Heating

Interior Features
Levels: Two
Spa Features: In Ground
Has Spa

Exterior

Exterior Information
Roof: Concrete

Exterior Features
Patio And Porch Features: Wood
Has Patio
Pool Features: Private
Has Pool

Lot Information
Lot Size Source: Assessor's Data

Property Information
Total # of Units: 1
Common Walls: 2+ common walls
Living Area Source: Assessor's Data
Parcel Number: 8765002008
Attached Property
Has View
Year Built Source: Assessor

Financial

Assesments Information
Assessments: Unknown

Utilities

Utilities Information
Sewer Connected
Water Source: District/Public

Location

Multi-Unit Information
# of Units In Community: 1

Neighborhood Information
Community Features: Curbs

Location Information
Latitude: 33.98396700
Longitude: -117.84986100
Road Frontage Type: Access via City Streets

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,972
Stories: —
Lot Size: 10,212 square feet
Style: Single Family Residential
Year Built: 1980
Year Renovated: 1980
County: Los Angeles County
APN: 8765002008

Home facts updated by county records on Oct 7, 2026

Other

Listing Information
Days Active in MLS: 109
Continuous Days Active in MLS: 109

Listing Agent Information
List Agent First Name: Justin
List Agent Last Name: Yoo

Listing Office Information
List Office Name: Masters Realty Eastern Group

Selling Agent Information
Buyer Agent First Name: Amy
Buyer Agent Last Name: Hsiao
Co-Buyer Agent First Name: Amy
Co-Buyer Agent Last Name: Hsiao

Selling Office Information
Buyer Office Name: ReMax 2000 Realty
Co-Buyer Office Name: ReMax 2000 Realty

Around this home

Schools

K - 12
Preschool & daycare

Evergreen Elementary School

Public K-5 • Assigned • 1.0mi

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
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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

$1.46M – $1.77M

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1034 E Romney Dr, Walnut, CA 91789

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Home values near 20842 Missionary Ridge St

Data from public records.

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
20809 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2583 Sq. Ft.	$1,310,947
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

Address	Redfin Estimate
20886 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,352,896
20858 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,344,671
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
20815 Missionary Ridge Street, Walnut, CA 3 Beds \| 2 Baths \| 1817 Sq. Ft.	$1,137,833
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

Address	Redfin Estimate
20878 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,402,140
20846 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 3501 Sq. Ft.	$1,462,896
20824 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,235,479
20808 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2275 Sq. Ft.	$1,267,704
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

Property information provided by CRMLS when last listed in 2013. This data may not match . Learn more.

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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 20842 Missionary Ridge St

Tax history for 20842 Missionary Ridge St

Public record

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 20842 Missionary Ridge St

More real estate resources