21288 Running Branch Rd, Diamond Bar, CA 91765

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

Off Market Dec 2008 for $600K

$1,188,279

•

2,695

sq ft

21288 Running Branch Rd, Diamond Bar, CA 91765

About this home

Single-familyProperty Type

1979Year Built

0.37 acresLot Size

$441Est. Price/Sq.Ft.

3 car garageParking

Listed by THERESA WEN •DRE #00916395 • FIRST TEAM REAL ESTATE

Listed by SYLVIA ENA •DRE #01129671 • FIRST TEAM REAL ESTATE

Bought with JACKIE LIOU •DRE #01322032 • PRESIDENTIAL,INC. RE

Redfin checked: a minute ago

•Source:CRMLS #C07172417

Redfin Estimate

$1,188,279

$588K since sold in December 2008$5,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 19.6% lower than the average sale price ($1.48M) of 6 comparable homes.

SOLD MAY 28, 2026
$1,505,000
A
4 beds3 baths2,712 sq ft
3249 Hawkwood Rd, Diamond Bar, CA 91765
SOLD MAY 12, 2026
$1,680,000
B
4 beds3 baths2,697 sq ft
21535 Chirping Sparrow, Diamond Bar, CA 91765
SOLD JUL 17, 2026
$1,589,000
C
4 beds2.5 baths2,805 sq ft
21040 Ambushers, Diamond Bar, CA 91765
New Star Realty & Inv.
SOLD MAR 25, 2026
$1,250,000
D
4 beds3 baths2,380 sq ft
3396 Hawkwood, Diamond Bar, CA 91765
SOLD FEB 6, 2026
$1,330,000
E
4 beds3 baths2,302 sq ft
21307 Chirping Sparrow Rd, Diamond Bar, CA 91765
SOLD JAN 16, 2026
$1,518,888
F
4 beds2.5 baths2,397 sq ft
21187 Ambushers, Diamond Bar, CA 91765

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

Earn from this home

Sell

$857,822

Est. take-home

List your home with Redfin and save $5,941

Rent

$3,942/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 21288 Running Branch Rd

Date

Event

Price

CRMLS #C07172417

Dec 12, 2008

Sold

$600,000

$223/sq ft

Nov 27, 2008

Listing Removed

—

Nov 13, 2008

Contingent

—

Oct 17, 2008

Price Changed

$629,000

$233/sq ft

Jul 30, 2008

Price Changed

$659,000

$245/sq ft

Jul 11, 2008

Relisted

—

Jun 30, 2008

Contingent

—

Apr 17, 2008

Price Changed

$679,000

$252/sq ft

Dec 4, 2007

Listed

$698,000

$259/sq ft

CRMLS #C07075149

Dec 3, 2007

Listing Removed

—

Nov 17, 2007

Price Changed

$698,000

$259/sq ft

Jul 4, 2007

Price Changed

$734,000

$272/sq ft

May 23, 2007

Listed

$749,000

$278/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$9,962 (+5.6%)

$402,034 + $370,608

$772,642

2024

$9,430 (+2.4%)

$402,034 + $370,608

$772,642

2023

$9,206 (+2.1%)

$394,151 + $363,342

$757,493

2022

$9,014 (+1.9%)

$386,423 + $356,218

$742,641

2021

$8,842 (+1.3%)

$378,847 + $349,234

$728,081

2020

$8,730 (+2.0%)

$371,419 + $342,387

$713,806

2019

$8,563 (+4.1%)

$367,611 + $338,877

$706,488

2018

$8,228 (+4.8%)

$360,403 + $332,233

$692,636

2017

$7,853 (+3.1%)

$346,409 + $319,333

$665,742

2016

$7,615 (−0.6%)

$346,409 + $319,333

$665,742

2015

$7,660 (−0.1%)

$339,617 + $313,072

$652,689

2014

$7,670 (+1.1%)

$327,964 + $302,330

$630,294

2012

$7,589 (+3.0%)

$326,482 + $300,964

$627,446

2011

$7,371 (+0.7%)

$320,081 + $295,063

$615,144

2010

$7,316 (−0.8%)

$313,805 + $289,278

$603,083

2009

$7,378 (+123.6%)

$311,460 + $287,117

$598,577

2008

$3,299

$312,200 + $287,800

$600,000

Tax history for 21288 Running Branch Rd

Year

Property tax

Land + Additions

Assessment*

2025

$9,962 (+5.6%)

$402,034 + $370,608

$772,642

2024

$9,430 (+2.4%)

$402,034 + $370,608

$772,642

2023

$9,206 (+2.1%)

$394,151 + $363,342

$757,493

2022

$9,014 (+1.9%)

$386,423 + $356,218

$742,641

2021

$8,842 (+1.3%)

$378,847 + $349,234

$728,081

2020

$8,730 (+2.0%)

$371,419 + $342,387

$713,806

2019

$8,563 (+4.1%)

$367,611 + $338,877

$706,488

2018

$8,228 (+4.8%)

$360,403 + $332,233

$692,636

2017

$7,853 (+3.1%)

$346,409 + $319,333

$665,742

2016

$7,615 (−0.6%)

$346,409 + $319,333

$665,742

2015

$7,660 (−0.1%)

$339,617 + $313,072

$652,689

2014

$7,670 (+1.1%)

$327,964 + $302,330

$630,294

2012

$7,589 (+3.0%)

$326,482 + $300,964

$627,446

2011

$7,371 (+0.7%)

$320,081 + $295,063

$615,144

2010

$7,316 (−0.8%)

$313,805 + $289,278

$603,083

2009

$7,378 (+123.6%)

$311,460 + $287,117

$598,577

2008

$3,299

$312,200 + $287,800

$600,000

*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

0.37 Acres

Year renovated

1979

Sq. Ft.

2,695

Year built

1979

Style

Single Family Residential

County

Los Angeles County

APN

8714021002

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
Direct Garage Access, Garage Door Opener
Has Parking

Interior

Kitchen Information
Formal Dining Room

Bathroom Information
# of Baths (Full): 2
# of Baths (3/4): 1

Cooling Information
Central
Has Cooling

Room Information
Converted Bedroom, Den, Dressing Area, Entry, Family Room, Living Room, Primary Bedroom, Retreat, Separate Family Room

Fireplace Information
See Remarks
Has Fireplace

Flooring Information
Carpet, Tile

Interior Features
Double Door Entry
Wet Bar
Levels: Two
Security Features: Security System
Window Features: Drapes/Curtains

Exterior

Exterior Information
Roof: Concrete, Tile
Fencing: Blockwall
Has Fence

Foundation Information
Foundation Details: Concrete Slab

Exterior Features
TV Antenna
Patio And Porch Features: None
Pool Features: None
Has Sprinklers

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

Property Information
Living Area Source: Assessor's Data
Parcel Number: 8714021002
Property Condition: Termite Clearance

Financial

Assesments Information
Assessments: Unknown

Utilities

Utilities Information
Electric: 220V In Garage
Sewer: Sewer Paid
Cable Available, Sewer Available
Water Source: District/Public

Location

Location Information
Latitude: 33.96395800
Longitude: -117.84267200

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,695
Stories: —
Lot Size: 0.37 acres
Style: Single Family Residential
Year Built: 1979
Year Renovated: 1979
County: Los Angeles County
APN: 8714021002

Home facts updated by county records on Aug 30, 2026

Other

Miscellaneous Information
Exclusions: Patio Off the Family room and Den

Listing Information
Days Active in MLS: 359
Continuous Days Active in MLS: 359

Listing Agent Information
List Agent First Name: THERESA
List Agent Last Name: WEN
Co-List Agent First Name: SYLVIA
Co-List Agent Last Name: ENA

Listing Office Information
List Office Name: FIRST TEAM SNS - DIAMOND BAR
Co-List Office Name: FIRST TEAM SNS - DIAMOND BAR

Selling Agent Information
Buyer Agent First Name: JOUNG-JIAH
Buyer Agent Last Name: LIOU

Selling Office Information
Buyer Office Name: PRESIDENTIAL INC. R.E.

Around this home

Schools

Castle Rock Elementary School

Public K-5 • Assigned • 0.6mi

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

5 days above 98° expected this year, 15 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

$1.13M – $1.37M

Reach more buyers when you sell with Redfin. Save up to $11,883 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

3D WALKTHROUGH

$2,799,000

5 beds5.5 baths6,343 sq ft

2233 Wind River Ln, Rowland Heights, CA 91748

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

$1,550,000

5 beds3 baths2,984 sq ft

1264 S Lemon, Diamond Bar, CA 91789

OPEN SUN, 1PM TO 4PM

$1,025,800

4 beds2 baths1,730 sq ft

2010 Gene Ct, Rowland Heights, CA 91748

$995,000

4 beds2 baths1,521 sq ft

3525 Castle Rock, Diamond Bar, CA 91765

$1,698,000

4 beds3 baths2,725 sq ft

2633 Braided Mane, 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 21288 Running Branch Rd

Data from public records.

Address	Redfin Estimate
21365 Running Branch Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 2037 Sq. Ft.	$1,240,824
21317 Running Branch Road, Diamond Bar, CA 5 Beds \| 3 Baths \| 3000 Sq. Ft.	$1,521,815

Address	Redfin Estimate
21351 Running Branch Road, Diamond Bar, CA 3 Beds \| 3 Baths \| 2380 Sq. Ft.	$1,245,512
21299 Running Branch Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 2037 Sq. Ft.	$1,251,788

Address	Redfin Estimate
21333 Running Branch Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 2697 Sq. Ft.	$1,317,895
21271 Running Branch Road, Diamond Bar, CA 6 Beds \| 3 Baths \| 3493 Sq. Ft.	$1,404,511

Property information provided by CRMLS when last listed in 2007. This data may not match . Learn more.

More real estate resources

Zip Codes
Neighborhoods
Cities
Popular Searches

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

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

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