20878 Missionary Ridge St, Walnut, CA 91789

Local rules require you to be signed in to see more photos.

Off market jan 2011 for $660K

$1,402,140

Est. refi paymentEst. refi $3,890/mo

•

2,509

sq ft

20878 Missionary Ridge St, Walnut, CA 91789

About this home

Single-familyProperty Type

1980Year Built

9,310 sq ftLot Size

$559Est. Price/Sq.Ft.

3 car garageParking

Listed by Norman Shiau •DRE #00975578 • Nortco Inc.

Bought with Angie Tang •DRE #00982512 • FIRST TEAM REAL ESTATE

Redfin checked: a minute ago

•Source:CRMLS #H10087184

Redfin Estimate

$1,402,140

$742K since sold in January 2011$8,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 5% lower than the average sale price ($1.48M) 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 JUL 28, 2026
$1,319,000
B
4 beds2.5 baths2,432 sq ft
1321 Glenthorpe, Walnut, CA 91789
Real Broker
SOLD APR 1, 2026
$1,390,000
C
4 beds3 baths2,781 sq ft
20885 Starshine, Walnut, CA 91789
SOLD APR 17, 2026
$1,488,000
D
4 beds3 baths2,426 sq ft
20573 Missionary Ridge St, Walnut, CA 91789
SOLD SEP 22, 2026
$1,748,000
E
4 beds3 baths2,690 sq ft
22105 Birds Eye Dr, Diamond Bar, CA 91765
Latitude 33 Real Estate
SOLD AUG 31, 2026
$1,480,000
F
4 beds2.5 baths2,577 sq ft
1522 Sunbluff Dr, Diamond Bar, CA 91765
RE/MAX Premier Properties

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$999,103

Est. take-home

List your home with Redfin and save $7,011

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$4,532/mo

Redfin rental estimate

List your home for rent

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 20878 Missionary Ridge St

Date

Event

Price

CRMLS #H10087184

Jan 20, 2011

Sold

$660,000

$263/sq ft

Dec 15, 2010

Pending

—

Nov 23, 2010

Price Changed

$685,000

$273/sq ft

Nov 3, 2010

Price Changed

$678,000

$270/sq ft

Nov 2, 2010

Price Changed

$675,000

$269/sq ft

Oct 8, 2010

Price Changed

$688,000

$274/sq ft

Aug 14, 2010

Listed

$699,000

$279/sq ft

CRMLS #H637784

Apr 1, 2007

Listing Removed

—

Oct 3, 2006

Listed

$749,000

$299/sq ft

CRMLS #H513043

Jan 31, 2006

Listing Removed

—

Oct 23, 2005

Listed

$799,900

$319/sq ft

CRMLS #H228213

Jun 21, 2002

Sold

$449,000

$179/sq ft

Apr 17, 2002

Listed

$448,888

$179/sq ft

CRMLS #C231847

Jan 31, 2002

Listing Removed

—

Jul 30, 2001

Listed

$449,900

$179/sq ft

Public Records

May 28, 1998

Sold

$318,000

$127/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$10,887 (+5.5%)

$460,380 + $402,097

$862,477

2024

$10,319 (+2.4%)

$451,353 + $394,213

$845,566

2023

$10,074 (+2.1%)

$442,503 + $386,484

$828,987

2022

$9,866 (+1.9%)

$433,827 + $378,906

$812,733

2021

$9,682 (+1.3%)

$425,321 + $371,477

$796,798

2020

$9,559 (+1.9%)

$416,982 + $364,194

$781,176

2019

$9,377 (+4.3%)

$412,707 + $360,460

$773,167

2018

$8,993 (+4.8%)

$404,615 + $353,393

$758,008

2017

$8,581 (+3.0%)

$388,904 + $339,671

$728,575

2016

$8,327 (−0.6%)

$388,904 + $339,671

$728,575

2015

$8,378

$381,279 + $333,011

$714,290

2014

$8,386 (+1.0%)

$368,196 + $321,584

$689,780

2012

$8,300 (+4.0%)

$366,532 + $320,131

$686,663

2011

$7,981 (+25.1%)

$359,346 + $313,854

$673,200

2010

$6,382 (+0.3%)

$403,012 + $249,867

$652,879

2009

$6,364 (+2.7%)

$265,514 + $248,347

$513,861

2008

$6,195

$266,145 + $248,937

$515,082

Tax history for 20878 Missionary Ridge St

Year

Property tax

Land + Additions

Assessment*

2025

$10,887 (+5.5%)

$460,380 + $402,097

$862,477

2024

$10,319 (+2.4%)

$451,353 + $394,213

$845,566

2023

$10,074 (+2.1%)

$442,503 + $386,484

$828,987

2022

$9,866 (+1.9%)

$433,827 + $378,906

$812,733

2021

$9,682 (+1.3%)

$425,321 + $371,477

$796,798

2020

$9,559 (+1.9%)

$416,982 + $364,194

$781,176

2019

$9,377 (+4.3%)

$412,707 + $360,460

$773,167

2018

$8,993 (+4.8%)

$404,615 + $353,393

$758,008

2017

$8,581 (+3.0%)

$388,904 + $339,671

$728,575

2016

$8,327 (−0.6%)

$388,904 + $339,671

$728,575

2015

$8,378

$381,279 + $333,011

$714,290

2014

$8,386 (+1.0%)

$368,196 + $321,584

$689,780

2012

$8,300 (+4.0%)

$366,532 + $320,131

$686,663

2011

$7,981 (+25.1%)

$359,346 + $313,854

$673,200

2010

$6,382 (+0.3%)

$403,012 + $249,867

$652,879

2009

$6,364 (+2.7%)

$265,514 + $248,347

$513,861

2008

$6,195

$266,145 + $248,937

$515,082

*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

9,262 Sq. Ft.

Year renovated

1980

Sq. Ft.

2,509

Year built

1980

Style

Single Family Residential

County

Los Angeles County

APN

8765002004

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

Interior

Laundry Information
Has Laundry
Individual Room

Kitchen Information
Area

Bathroom Information
# of Baths (Full): 3

Cooling Information
Central
Has Cooling

Room Information
Family Room, Living Room, Primary Bedroom, Walk-In Closet

Fireplace Information
Family Room
Has Fireplace

Heating Information
Forced Air
Has Heating

Interior Features
Ceiling Fan
Levels: Two

Exterior

Exterior Information
Roof: Tile
Fencing: Blockwall
Has Fence
Construction Materials: Stucco

Exterior Features
Patio And Porch Features: Wood
Has Patio
Pool Features: In Ground
Has Pool
Has Sprinklers

Lot Information
Lot Size Source: Assessor's Data
Lot Features: Landscaped, Sprinklers Timer

Property Information
Living Area Source: Assessor's Data
Parcel Number: 8765002004

Financial

Assesments Information
Assessments: Unknown

Location

Homeowners Association
Association Fee: $38

Neighborhood Information
Community Features: Curbs

School Information
High School District: Walnut Valley Unified

Location Information
Latitude: 34.00052800
Longitude: -117.81184300

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,509
Stories: —
Lot Size: 9,262 square feet
Style: Single Family Residential
Year Built: 1980
Year Renovated: 1980
County: Los Angeles County
APN: 8765002004

Home facts updated by county records on Oct 7, 2026

Other

Listing Information
Days Active in MLS: 124
Continuous Days Active in MLS: 124

Listing Agent Information
List Agent First Name: Norman
List Agent Last Name: Shiau

Listing Office Information
List Office Name: Nortco Inc.

Selling Agent Information
Buyer Agent First Name: ANGIE
Buyer Agent Last Name: TANG

Selling Office Information
Buyer Office Name: FIRST TEAM SNS - DIAMOND BAR

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
Was this helpful?

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

$1.33M – $1.61M

Reach more buyers when you sell with Redfin. Save up to $14,021 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

$2,295,000

6 beds5 baths4,786 sq ft

22628 Ridge Line, Diamond Bar, CA 91765

Guard gated • Free form pool • Raised spa

Justin Moldenhauer, Broker

$1,690,000

9 beds8 baths3,042 sq ft

1337 Brea Canyon Cutoff Rd, Rowland Heights, CA 91748

Newly constructed • Fully permitted • Updated cabinetry

OPEN SUN, 12PM TO 3PM

$1,590,000

5 beds4 baths3,100 sq ft

20949 Ambushers St, Diamond Bar, CA 91765

Two homes on one lot • Dedicated office • Spacious backyard

$6,500,000

11 beds12 baths17,241 sq ft

22588 Ridge Line Rd, Diamond Bar, CA 91765

Gourmet kitchen • Private game room • Home theater

ReMax 2000 Realty

OPEN SAT, 1PM TO 4PM

$860,000

3 beds2 baths1,360 sq ft

1012 Farel, Walnut, CA 91789

Upgraded kitchen • Permitted sunroom • Solar-energy system

$1,698,000

8 beds6 baths3,332 sq ft

20122 Candleflame Ct, Walnut, CA 91789

Newer interior paint • New landscaping • 0.24 acre lot

New listings for sale in 91789

OPEN SAT, 12PM TO 4PM

$1,550,000

4 beds3 baths1,874 sq ft

322 La Tortola, Walnut, CA 91789

Custom finishes • Electric fireplace • Chef's kitchen

OPEN SAT, 1PM TO 4PM

$1,450,000

4 beds2 baths2,053 sq ft

20092 Wildcat Canyon Rd, Walnut, CA 91789

Single story • Vaulted ceilings • Open kitchen

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

Peaceful cul de sac • Expansive backyard • 0.49 acre lot

OPEN SAT, 1PM TO 4PM

$1,588,000

4 beds3.5 baths2,473 sq ft

19935 Camino De Rosa, Walnut, CA 91789

Nextgen in-law suite • Private courtyard • Outdoor fireplace

$1,758,000

4 beds3 baths2,548 sq ft

838 Streamview, Walnut, CA 91789

Two story home • Expansive flat lot • Huge back yard

$1,899,990

4 beds4 baths2,330 sq ft

22138 Portofino Dr, Walnut, CA 91789

Panoramic views • Designer backsplash • Solar panel system

OPEN SAT, 1PM TO 4PM

$777,000

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

Hilltop view • Walnut neighborhood • Two fireplaces

OPEN SAT, 1PM TO 4PM

$310,000

3 beds2 baths1,740 sq ft

20739 LYCOMING St #44, Walnut, CA 91789

Updated home • Oversized kitchen • Walk-in closet

Home values near 20878 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
20870 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,458,851
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
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
20891 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,253,269

Address	Redfin Estimate
20892 Missionary Ridge Street, Walnut, CA 3 Beds \| - Baths \| 2275 Sq. Ft.	$1,243,554
20858 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,344,671
20836 Missionary Ridge Street, Walnut, CA 2 Beds \| 2 Baths \| 1817 Sq. Ft.	$1,049,624
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
20879 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,362,902

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
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
20873 Missionary Ridge Street, Walnut, CA 3 Beds \| - Baths \| 1817 Sq. Ft.	$1,160,333
20885 Missionary Ridge Street, Walnut, CA 5 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,591,977

Property information provided by CRMLS when last listed in 2010. This data may not match . Learn more.

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

Redfin Brokerage Licenses

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

91709 homes for sale
91765 homes for sale
91789 homes for sale
91766 homes for sale
91768 homes for sale

Houses for rent in Diamond Bar	Agents near me	Irvine, CA homes for sale	Diamond Bar Housing Market
Houses for sale near me	San Diego, CA homes for sale	Fremont, CA homes for sale
Land for sale near me	San Francisco, CA homes for sale	Sacramento, CA homes for sale
Open Houses near me	Los Angeles, CA homes for sale	Diamond Bar Property Records
Condos for sale near me	San Jose, CA homes for sale	CA New Listings

Irvine homes for sale
Pasadena homes for sale
Long Beach homes for sale

About this home

Redfin Estimate

Earn from this home

Market trends in 91789, CA

Sale history for 20878 Missionary Ridge St

Tax history for 20878 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 20878 Missionary Ridge St

More real estate resources