21396 Running Branch Rd, Diamond Bar, CA 91765

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

Off Market Dec 2009 for $625K

$1,349,918

Est. refi paymentEst. refi $3,236/mo

•

2,037

sq ft

21396 Running Branch Rd, Diamond Bar, CA 91765

About this home

(THIS IS A "RANGED VALUE" LISTING. SELLER WILL ENTERTAIN OFFERS BETWEEN $610,000 TO $640,000) WARM & COZY SINGLE STORY HOME IN THE GREAT NEIGHBORHOOD OF DIAMOND BAR WITH WALNUT SCHOOL DISTRICT. STEP DOWN LIVING ROOM WITH VAULTED CEILING , FIREPLACE & CUSTOM DRAPES. HARDWOOD FLOOR IN FAMILY ROOM & HALLWAY. CATHEDRAL CEILING MASTER BEDROOM WITH CEILING FAN, MIRRORED CLOSET DOORS AND DIRECT ACCESS TO THE BACKYARD. BREAKFAST NOOK & FORMAL DINING ROOM. SEPT-DOWN FAMILY ROOM WITH VAULTED CEILING. CEILING FAN IN ALL ROOMS. 3 CAR GARAGE WITH ROLL-UP DOORS AND ACCESS TO THE BACKYARD. PRIVATE BACKYARD WITH SPARKLING POOL & SPA (WITH SECURITY FENCE) FRUIT TREES, AND COVERED PATIO.

Single-familyProperty Type

1979Year Built

0.41 acresLot Size

$663Est. Price/Sq.Ft.

3 car garageParking

Listed by Anne Fong •DRE #00970431 • RE/MAX Galaxy

Bought with Angela Chang •DRE #01322834 • AC REAL ESTATE SERVICES, INC.

Redfin checked: a minute ago

•Source:CRMLS #H09116907

Redfin Estimate

$1,349,918

$725K since sold in December 2009$1,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 0.9% lower than the average sale price ($1.36M) of 6 comparable homes.

SOLD FEB 26, 2026
$1,180,000
A
3 beds2 baths1,752 sq ft
21465 Running Br, Diamond Bar, CA 91765
SOLD MAY 14, 2026
$1,330,000
B
4 beds3 baths2,037 sq ft
3357 Bent Twig, Diamond Bar, CA 91765
SOLD FEB 6, 2026
$1,330,000
C
4 beds3 baths2,302 sq ft
21307 Chirping Sparrow Rd, Diamond Bar, CA 91765
SOLD JUL 17, 2026
$1,589,000
D
4 beds2.5 baths2,805 sq ft
21040 Ambushers, Diamond Bar, CA 91765
New Star Realty & Inv.
SOLD MAY 28, 2026
$1,505,000
E
4 beds3 baths2,712 sq ft
3249 Hawkwood Rd, Diamond Bar, CA 91765
SOLD AUG 19, 2026
$1,238,888
F
4 beds2 baths2,000 sq ft
20995 Glenbrook Dr, Diamond Bar, CA 91789

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

Earn from this home

Sell

$982,708

Est. take-home

List your home with Redfin and save $6,750

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$3,434/mo

Redfin rental estimate

List your home for rent

Market trends in 91765, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.1%

0.2% MoM

Median sale price

$1.1M

$48K MoM

Avg. days on market

42d

0 days MoM

Recently sold homes

108

17 MoM

New listings for sale

COMING SOON
$585,000
2 beds2.5 baths1,012 sq ft
1109 Golden Springs Dr Unit D, Diamond Bar, CA 91765
OPEN SUN, 1PM TO 5PM
$1,648,000
4 beds3 baths3,212 sq ft
3315 Hawkwood, Diamond Bar, CA 91765
First Team Real Estate
$5,380,000
6 beds7 baths9,038 sq ft
2828 Water Course Dr, Diamond Bar, CA 91765
OPEN SUN, 1PM TO 3PM
$1,199,999
4 beds2.5 baths1,915 sq ft
23308 Quail Smt, Diamond Bar, CA 91765
$818,800
3 beds3 baths1,570 sq ft
22935 Estoril Dr #6, Diamond Bar, CA 91765
OPEN SUN, 1AM TO 3PM
$1,690,000
4 beds3 baths2,587 sq ft
1515 Sunbluff Dr, Diamond Bar, CA 91765
OPEN SUN, 1PM TO 4PM
$538,000
3 beds2 baths1,047 sq ft
800 Grand Ave Unit D1, Diamond Bar, CA 91765
$1,070,000
4 beds2.5 baths1,893 sq ft
24126 Silver Spray, Diamond Bar, CA 91765
OPEN SUN, 1PM TO 4PM
$1,150,000
4 beds3 baths1,747 sq ft
1036 Cogburn Ln, Diamond Bar, CA 91765
$625,000
3 beds2.5 baths1,420 sq ft
1030 Golden Springs Dr Unit B, Diamond Bar, CA 91765
See all

Provided by Redfin

Sale history for 21396 Running Branch Rd

Year

Property tax

Land + Additions

Assessment*

2025

$10,381 (+4.9%)

$382,206 + $424,546

$806,752

2024

$9,892 (+2.4%)

$382,206 + $424,546

$806,752

2023

$9,657 (+2.1%)

$374,712 + $416,222

$790,934

2022

$9,458 (+1.9%)

$367,365 + $408,061

$775,426

2021

$9,285 (+1.3%)

$360,162 + $400,060

$760,222

2020

$9,168 (+1.9%)

$353,100 + $392,216

$745,316

2019

$8,994 (+4.4%)

$349,480 + $388,195

$737,675

2018

$8,612 (+4.8%)

$342,628 + $380,584

$723,212

2017

$8,219 (+3.0%)

$329,324 + $365,806

$695,130

2016

$7,981 (−0.6%)

$329,324 + $365,806

$695,130

2015

$8,031 (−0.1%)

$322,867 + $358,634

$681,501

2014

$8,043 (+33.1%)

$311,789 + $346,328

$658,117

2012

$6,042 (−12.7%)

$277,100 + $307,900

$585,000

2011

$6,921 (−9.9%)

$225,800 + $250,900

$476,700

2010

$7,677 (+80.7%)

$264,700 + $294,100

$558,800

2009

$4,249 (+2.8%)

$296,100 + $328,900

$625,000

2008

$4,132

$166,253 + $169,715

$335,968

Tax history for 21396 Running Branch Rd

Year

Property tax

Land + Additions

Assessment*

2025

$10,381 (+4.9%)

$382,206 + $424,546

$806,752

2024

$9,892 (+2.4%)

$382,206 + $424,546

$806,752

2023

$9,657 (+2.1%)

$374,712 + $416,222

$790,934

2022

$9,458 (+1.9%)

$367,365 + $408,061

$775,426

2021

$9,285 (+1.3%)

$360,162 + $400,060

$760,222

2020

$9,168 (+1.9%)

$353,100 + $392,216

$745,316

2019

$8,994 (+4.4%)

$349,480 + $388,195

$737,675

2018

$8,612 (+4.8%)

$342,628 + $380,584

$723,212

2017

$8,219 (+3.0%)

$329,324 + $365,806

$695,130

2016

$7,981 (−0.6%)

$329,324 + $365,806

$695,130

2015

$8,031 (−0.1%)

$322,867 + $358,634

$681,501

2014

$8,043 (+33.1%)

$311,789 + $346,328

$658,117

2012

$6,042 (−12.7%)

$277,100 + $307,900

$585,000

2011

$6,921 (−9.9%)

$225,800 + $250,900

$476,700

2010

$7,677 (+80.7%)

$264,700 + $294,100

$558,800

2009

$4,249 (+2.8%)

$296,100 + $328,900

$625,000

2008

$4,132

$166,253 + $169,715

$335,968

*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

0.41 Acres

Year renovated

1979

Sq. Ft.

2,037

Year built

1979

Style

Single Family Residential

County

Los Angeles County

APN

8714021008

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 30, 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
Attached Garage
# of Garage Spaces: 3
Driveway, Direct Garage Access, Garage Door Opener
Has Parking

Interior

Kitchen Information
Appliances: Dishwasher, Garbage Disposal, Oven, Range, Stove, Water Heater Unit
Has Appliances
Breakfast Nook, Formal Dining Room

Bathroom Information
# of Baths (Full): 2

Cooling Information
Central
Has Cooling

Room Information
Family Room, Living Room, Primary Bedroom, Main Floor Bedroom, Main Floor Primary Bedroom, Separate Family Room

Fireplace Information
Living Room
Has Fireplace

Flooring Information
Carpet, Tile

Heating Information
Forced Air
Has Heating

Interior Features
Double Door Entry
Built-Ins, Ceiling Fan, Storage Space
Levels: One
Security Features: Smoke Detector
Spa Features: In Ground
Has Spa
Window Features: Custom Covering, Drapes/Curtains

Exterior

Exterior Information
Roof: Tile
Construction Materials: Stucco

Exterior Features
Patio And Porch Features: Covered
Has Patio
Pool Features: Fenced, In Ground
Has Pool
Has Sprinklers

Lot Information
Lot Size Source: Assessor's Data
Lot Features: Sprinklers In Front, Sprinklers In Rear, Sprinklers On Side

Property Information
Living Area Source: Assessor's Data
Parcel Number: 8714021008

Utilities

Utilities Information
Sewer: Sewer Paid
Sewer Connected

Location

Neighborhood Information
Community Features: Curbs, Sidewalks

School Information
High School District: Walnut Valley Unified

Location Information
Latitude: 33.96459900
Longitude: -117.84137700

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 2,037
Stories: —
Lot Size: 0.41 acres
Style: Single Family Residential
Year Built: 1979
Year Renovated: 1979
County: Los Angeles County
APN: 8714021008

Home facts updated by county records on Aug 30, 2026

Other

Listing Information
Days Active in MLS: 19
Continuous Days Active in MLS: 19

Listing Agent Information
List Agent First Name: Anne
List Agent Last Name: Fong

Listing Office Information
List Office Name: ReMax Realty-100

Selling Agent Information
Buyer Agent First Name: ANGELA
Buyer Agent Last Name: CHU

Selling Office Information
Buyer Office Name: AC REAL ESTATE SERVICES, INC.

Around this home

Schools

Castle Rock Elementary School

Public K-5 • Assigned • 0.5mi

10/10

South Pointe Middle School

Public 6-8 • Assigned • 1.9mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 1.2mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

The real estate market is becoming more balanced. Buyers have more inventory, more data, and more time to make informed decisions than they did a year ago. Well-priced homes are still moving quickly, but today’s market rewards preparation, strategy,...
2 months ago • Los Angeles County
Peter Santos
Redfin Premier agent
82 deals
Was this helpful?

Climate risks

1/10 Flood Factor

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

5/10 Fire Factor

6% chance of being in a wildfire in next 30 years

5/10 Heat Factor

6 days above 98° expected this year, 16 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

Diamond Bar, CA • 91765

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

Reach more buyers when you sell with Redfin. Save up to $13,499 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

OPEN SUN, 1PM TO 5PM

$1,648,000

4 beds3 baths3,212 sq ft

3315 Hawkwood, Diamond Bar, CA 91765

First Team Real Estate

$995,000

4 beds2 baths1,521 sq ft

3525 Castle Rock, Diamond Bar, CA 91765

OPEN SUN, 1PM TO 3PM

$1,250,000

3 beds2 baths1,463 sq ft

1309 Deeplawn Dr, Diamond Bar, CA 91765

OPEN SUN, 1:30AM TO 4:30PM

$1,550,000

5 beds3 baths2,984 sq ft

1264 S Lemon, Diamond Bar, CA 91789

$1,348,880

4 beds2.5 baths1,813 sq ft

21725 Lost Riv, Diamond Bar, CA 91765

$2,280,000

5 beds4.5 baths3,312 sq ft

21086 Willow Hts, Diamond Bar, CA 91765

New listings for sale in 91765

COMING SOON

$585,000

2 beds2.5 baths1,012 sq ft

1109 Golden Springs Dr Unit D, Diamond Bar, CA 91765

OPEN SUN, 1PM TO 5PM

$1,648,000

4 beds3 baths3,212 sq ft

3315 Hawkwood, Diamond Bar, CA 91765

First Team Real Estate

$5,380,000

6 beds7 baths9,038 sq ft

2828 Water Course Dr, Diamond Bar, CA 91765

OPEN SUN, 1PM TO 3PM

$1,199,999

4 beds2.5 baths1,915 sq ft

23308 Quail Smt, Diamond Bar, CA 91765

$818,800

3 beds3 baths1,570 sq ft

22935 Estoril Dr #6, Diamond Bar, CA 91765

OPEN SUN, 1AM TO 3PM3D WALKTHROUGH

$1,690,000

4 beds3 baths2,587 sq ft

1515 Sunbluff Dr, Diamond Bar, CA 91765

OPEN SUN, 1PM TO 4PM

$538,000

3 beds2 baths1,047 sq ft

800 Grand Ave Unit D1, Diamond Bar, CA 91765

$1,070,000

4 beds2.5 baths1,893 sq ft

24126 Silver Spray, Diamond Bar, CA 91765

OPEN SUN, 1PM TO 4PM3D WALKTHROUGH

$1,150,000

4 beds3 baths1,747 sq ft

1036 Cogburn Ln, Diamond Bar, CA 91765

Home values near 21396 Running Branch Rd

Data from public records.

Address	Redfin Estimate
21475 Running Branch Rd, Diamond Bar, CA 4 Beds \| - Baths \| 2695 Sq. Ft.	$1,485,599
21435 Running Branch Rd, Diamond Bar, CA 5 Beds \| 3 Baths \| 2798 Sq. Ft.	$1,464,776

Address	Redfin Estimate
21465 Running Branch Rd, Diamond Bar, CA 3 Beds \| 2 Baths \| 1752 Sq. Ft.	$1,309,938
21415 Running Branch Rd, Diamond Bar, CA 4 Beds \| 2.5 Baths \| 1752 Sq. Ft.	$1,161,907

Address	Redfin Estimate
21455 Running Branch Rd, Diamond Bar, CA 4 Beds \| 3 Baths \| 2695 Sq. Ft.	$1,571,135
21393 Running Branch Rd, Diamond Bar, CA 4 Beds \| 3 Baths \| 2798 Sq. Ft.	$1,601,629

Property information provided by CRMLS when last listed in 2009. This data may not match . Learn more.

More real estate resources

Cities
Zip Codes
Neighborhoods
Popular Searches

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

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.

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

Pathfinder homes for sale
Montefino homes for sale
Alameda Corridor homes for sale
Phillips Ranch homes for sale
Mount San Antonio College 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	Pasadena, 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