Google street view image for 20825 Missionary Ridge St, Walnut, CA 91789

Off market jun 1988 for $340K

$1,496,830

Est. refi paymentEst. refi $2,123/mo

•

3 ba

•

2,972

sq ft

20825 Missionary Ridge St, Walnut, CA 91789

About this home

20825 Missionary Ridge St is a 2,972 square foot house on a 10,137 square foot lot with 4 bedrooms and 3 bathrooms. - it last sold on June 22, 1988 for $340,000. Based on Redfin's Walnut data, we estimate the home's value is $1,496,830.

Single-familyProperty Type

1980Year Built

10,137 sq ftLot Size

$504Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,496,830

$1.2M since sold in June 1988$7,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 2.6% higher than the average sale price ($1.46M) 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 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

$1,414,665

Est. take-home

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Refinance

Est. cash available

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Rent

$4,607/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 20825 Missionary Ridge St

Year

Property tax

Land + Additions

Assessment*

2025

$8,575 (+6.5%)

$265,501 + $398,271

$663,772

2024

$8,049 (+2.4%)

$260,296 + $390,462

$650,758

2023

$7,860 (+2.1%)

$255,193 + $382,806

$637,999

2022

$7,695 (+2.0%)

$250,190 + $375,300

$625,490

2021

$7,544 (+1.3%)

$245,285 + $367,942

$613,227

2020

$7,448 (+1.9%)

$240,476 + $360,728

$601,204

2019

$7,306 (+4.3%)

$238,011 + $357,030

$595,041

2018

$7,003 (+4.7%)

$233,345 + $350,030

$583,375

2017

$6,686 (+3.3%)

$224,285 + $336,439

$560,724

2016

$6,474 (−0.6%)

$224,285 + $336,439

$560,724

2015

$6,512 (−0.1%)

$219,888 + $329,843

$549,731

2014

$6,519 (+1.1%)

$212,344 + $318,525

$530,869

2012

$6,447 (+3.0%)

$211,385 + $317,086

$528,471

2011

$6,261 (+0.8%)

$207,241 + $310,869

$518,110

2010

$6,213 (+0.3%)

$203,178 + $304,774

$507,952

2009

$6,194 (+2.7%)

$201,660 + $302,497

$504,157

2008

$6,028

$202,140 + $303,216

$505,356

Tax history for 20825 Missionary Ridge St

Year

Property tax

Land + Additions

Assessment*

2025

$8,575 (+6.5%)

$265,501 + $398,271

$663,772

2024

$8,049 (+2.4%)

$260,296 + $390,462

$650,758

2023

$7,860 (+2.1%)

$255,193 + $382,806

$637,999

2022

$7,695 (+2.0%)

$250,190 + $375,300

$625,490

2021

$7,544 (+1.3%)

$245,285 + $367,942

$613,227

2020

$7,448 (+1.9%)

$240,476 + $360,728

$601,204

2019

$7,306 (+4.3%)

$238,011 + $357,030

$595,041

2018

$7,003 (+4.7%)

$233,345 + $350,030

$583,375

2017

$6,686 (+3.3%)

$224,285 + $336,439

$560,724

2016

$6,474 (−0.6%)

$224,285 + $336,439

$560,724

2015

$6,512 (−0.1%)

$219,888 + $329,843

$549,731

2014

$6,519 (+1.1%)

$212,344 + $318,525

$530,869

2012

$6,447 (+3.0%)

$211,385 + $317,086

$528,471

2011

$6,261 (+0.8%)

$207,241 + $310,869

$518,110

2010

$6,213 (+0.3%)

$203,178 + $304,774

$507,952

2009

$6,194 (+2.7%)

$201,660 + $302,497

$504,157

2008

$6,028

$202,140 + $303,216

$505,356

*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

Pool Information
Has Pool

View Information
View: Good

Property Information
Subdivision Name: 31053
Living Sq. Ft: 2,972
# of Units: 1
Legal Description: TR=31053 LOT 21

Lot Information
# of Buildings: 1
Land Sq. Ft: 10,137
Legal Lot Number: 21
Municipality Name: DIAMOND BAR
Acres: 0.2327
Zoning Code: LCRPD100006U*
County Use Description: SINGLE FAMILY RESID

Utility Information
Water Service Type: Public

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,972
Stories: —
Lot Size: 10,137 square feet
Style: Single Family Residential
Year Built: 1980
Year Renovated: 1992
County: Los Angeles County
APN: 8765002021

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 • 1.0mi

9/10

Chaparral Middle School

Public 6-8 • Assigned • 2.0mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 0.7mi

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 99° expected this year, 17 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 9.5 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

$1.42M – $1.72M

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Country Queen Real Estate

New listings for sale in 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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4 beds3 baths2,763 sq ft

950 Coronel Ct, Walnut, CA 91789

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Home values near 20825 Missionary Ridge St

Data from public records.

Address	Redfin Estimate
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
20818 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,370,346
20804 Missionary Ridge Street, Walnut, CA 5 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,827,496
20809 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2583 Sq. Ft.	$1,310,947
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
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
20800 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2509 Sq. Ft.	$1,368,717
20815 Missionary Ridge Street, Walnut, CA 3 Beds \| 2 Baths \| 1817 Sq. Ft.	$1,137,833
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
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
20808 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2275 Sq. Ft.	$1,267,704
20803 Missionary Ridge Street, Walnut, CA 5 Beds \| 3 Baths \| 2972 Sq. Ft.	$1,499,538
20819 Missionary Ridge Street, Walnut, CA 4 Beds \| 3 Baths \| 2275 Sq. Ft.	$1,225,121
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

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About this home

Redfin Estimate

Earn from this home

Market trends in 91789, CA

Sale history for 20825 Missionary Ridge St

Tax history for 20825 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 20825 Missionary Ridge St

More real estate resources