21203 Running Branch Rd, Diamond Bar, CA 91765

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

Off Market Jan 2019 for $950K

$1,483,804

Est. refi paymentEst. refi $6,164/mo

•

2,880

sq ft

21203 Running Branch Rd, Diamond Bar, CA 91765

About this home

Gorgeous home in the highly desirable So Diamond Bar area within the Walnut Valley School District. Welcoming double door entry leads to a foyer-open floor plan with high vaulted ceilings. This 2 story home features 4 bedrooms-plus Bonus Room(could be used as a bedroom)-3 full bathrooms. Exquisite upgrades with the finest quality materials all through the house. Upgraded “quiet” windows in bedrooms. No detail has been overlooked. Downstairs you will find Santos mahogany wood+plush carpeting+tile flooring. Airy, open Living room and Dining Room with Double doors leading to Patio. Bonus room with a fireplace and a sink. Beautifully remodeled kitchen with recessed lighting, granite counter tops, and custom stainless steel appliances. The striking dinette area looks out to an inviting backyard with covered patio area perfect for dining al fresco. Full drip system. Above ground Spa. The bonus room showcases a warm fireplace. Den has recessed lighting, wet bar with cabinets for plenty of storage. Separate Laundry room. Upstairs has a luxury master suite with amazing vaulted ceiling, sitting area, ceiling fan, large bathroom with bathtub and shower, private toilet with door. Bedrooms that lead to balcony. Lots of closets with abundant storage. This SMART home has an Alarm System. 3-car attached garage. RV Parking. Close to shopping and restaurants. Conveniently close to 57 and 60 Fwys making commuting to Orange County, Los Angeles and San Bernardino a breeze.

Single-familyProperty Type

1981Year Built

0.25 acresLot Size

$515Est. Price/Sq.Ft.

3 car garageParking

Listed by Miryam White •DRE #02036513 • Century 21 Superstars

Bought with Ishwar Malani •DRE #01019513 • CENTURY 21 E N REALT

Redfin checked: a minute ago

•Source:CRMLS #TR18212078

Redfin Estimate

$1,483,804

$534K since sold in January 2019$6,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.8% higher than the average sale price ($1.42M) of 5 comparable homes.

SOLD MAY 12, 2026
$1,680,000
A
4 beds3 baths2,697 sq ft
21535 Chirping Sparrow, Diamond Bar, CA 91765
SOLD JUL 27, 2026
$1,315,000
B
4 beds3 baths2,336 sq ft
3595 Hawkwood, Diamond Bar, CA 91765
SOLD MAY 28, 2026
$1,505,000
C
4 beds3 baths2,712 sq ft
3249 Hawkwood Rd, Diamond Bar, CA 91765
SOLD FEB 6, 2026
$1,330,000
D
4 beds3 baths2,302 sq ft
21307 Chirping Sparrow Rd, Diamond Bar, CA 91765
SOLD MAR 25, 2026
$1,250,000
E
4 beds3 baths2,380 sq ft
3396 Hawkwood, 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

$760,345

Est. take-home

List your home with Redfin and save $7,419

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$4,018/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 21203 Running Branch Rd

Date

Event

Price

CRMLS #TR18212078

Jan 16, 2019

Sold

$950,000

$330/sq ft

Jan 16, 2019

Sold

$950,000

$330/sq ft

Dec 6, 2018

Contingent

—

Dec 6, 2018

Pending

—

Nov 1, 2018

Price Changed

$978,000

$340/sq ft

Oct 1, 2018

Price Changed

$980,000

$340/sq ft

Sep 14, 2018

Relisted

—

Sep 5, 2018

Listing Removed

—

Aug 30, 2018

Listed

$998,000

$347/sq ft

Aug 30, 2018

Listed

$978,000

$340/sq ft

Public Records

Dec 20, 1976

Sold

$212,700

$74/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$13,416 (+5.2%)

$501,981 + $557,756

$1,059,737

2024

$12,757 (+2.5%)

$501,981 + $557,756

$1,059,737

2023

$12,450 (+2.1%)

$492,139 + $546,820

$1,038,959

2022

$12,193 (+2.6%)

$482,490 + $536,099

$1,018,589

2021

$11,886 (+1.3%)

$473,030 + $525,588

$998,618

2020

$11,734 (+129.5%)

$463,755 + $515,283

$979,038

2019

$5,114 (+4.8%)

$459,000 + $510,000

$969,000

2018

$4,881 (+4.6%)

$73,863 + $318,639

$392,502

2017

$4,665 (+3.5%)

$70,996 + $306,267

$377,263

2016

$4,508 (−0.5%)

$70,996 + $306,267

$377,263

2015

$4,532 (−0.2%)

$69,604 + $300,262

$369,866

2014

$4,540 (+1.2%)

$67,217 + $289,959

$357,176

2012

$4,485 (+3.0%)

$66,914 + $288,649

$355,563

2011

$4,355 (+0.8%)

$65,602 + $282,990

$348,592

2010

$4,320 (+0.5%)

$64,316 + $277,442

$341,758

2009

$4,299 (+2.8%)

$63,836 + $275,369

$339,205

2008

$4,180

$63,988 + $276,024

$340,012

Tax history for 21203 Running Branch Rd

Year

Property tax

Land + Additions

Assessment*

2025

$13,416 (+5.2%)

$501,981 + $557,756

$1,059,737

2024

$12,757 (+2.5%)

$501,981 + $557,756

$1,059,737

2023

$12,450 (+2.1%)

$492,139 + $546,820

$1,038,959

2022

$12,193 (+2.6%)

$482,490 + $536,099

$1,018,589

2021

$11,886 (+1.3%)

$473,030 + $525,588

$998,618

2020

$11,734 (+129.5%)

$463,755 + $515,283

$979,038

2019

$5,114 (+4.8%)

$459,000 + $510,000

$969,000

2018

$4,881 (+4.6%)

$73,863 + $318,639

$392,502

2017

$4,665 (+3.5%)

$70,996 + $306,267

$377,263

2016

$4,508 (−0.5%)

$70,996 + $306,267

$377,263

2015

$4,532 (−0.2%)

$69,604 + $300,262

$369,866

2014

$4,540 (+1.2%)

$67,217 + $289,959

$357,176

2012

$4,485 (+3.0%)

$66,914 + $288,649

$355,563

2011

$4,355 (+0.8%)

$65,602 + $282,990

$348,592

2010

$4,320 (+0.5%)

$64,316 + $277,442

$341,758

2009

$4,299 (+2.8%)

$63,836 + $275,369

$339,205

2008

$4,180

$63,988 + $276,024

$340,012

*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

0.25 Acres

Year renovated

1981

Sq. Ft.

2,880

Year built

1981

Style

Single Family Residential

County

Los Angeles County

APN

8714012017

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, Driveway, RV Access/Parking
Has Parking
# of Parking Spaces: 3

Interior

Laundry Information
Has Laundry
Area, Gas & Electric Dryer Hookup, Individual Room, Inside

Kitchen Information
Appliances: Built In Range, Dishwasher, Garbage Disposal, Range/Stove Hood, Refrigerator, Tankless Water Heater, Vented Exhaust Fan
Has Appliances
Breakfast Counter / Bar, Breakfast Nook, Formal Dining Room
Built-in Trash/Recycling, Granite Counters, Kitchenette, Remodeled Kitchen

Bathroom Information
# of Baths (Full): 3
Bathtub, Shower, Double sinks in bath(s), Double Sinks In Master Bath, Exhaust fan(s), Privacy toilet door, Quartz Counters, Walk-in shower

Cooling Information
Central
Has Cooling

Room Information
Bonus Room, Entry, Family Room, Formal Entry, Living Room, Separate Family Room

Fireplace Information
Family Room, Primary Bedroom
Has Fireplace

Flooring Information
Carpet, Wood

Heating Information
Central Furnace
Has Heating

Interior Features
Double Door Entry, French Doors, Mirrored Closet Doors
Attic Fan, Balcony, Bar, Cathedral-Vaulted Ceilings, Ceiling Fan, Granite Counters, High Ceilings (9 Feet+), Open Floor Plan, Recessed Lighting, Wet Bar
Levels: Two
Main Level Bathrooms: 1
Main Level Bedrooms: 0
Security Features: 24 Hour Security, Carbon Monoxide Detector(s), Fire and Smoke Detection System, Fire Sprinklers, Smoke Detector
Spa Features: Above Ground
Has Spa
Window Features: Double Pane Windows, Plantation Shutters

Exterior

Exterior Information
Roof: Tile
Fencing: Excellent Condition, Wrought Iron
Has Fence

Exterior Features
Awning, Lighting, Rain Gutters
Patio And Porch Features: Deck, Patio Open, Wood
Has Patio
Pool Features: None
Has Sprinklers

Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: Down Slope from Street, Sprinkler System, Sprinklers Drip System, Sprinklers In Front, Sprinklers In Rear, Sprinklers On Side, Sprinklers Timer, Walkstreet, Yard

Property Information
Total # of Units: 1
Common Walls: No Common Walls
Parcel Number: 8714012017
Property Condition: Turnkey, Updated/Remodeled
Total # of Stories: 2
Has View
Year Built Source: Assessor

Utilities

Utilities Information
Electric: 220V In Garage, 220V In Laundry
Sewer: Public Sewer
Water Source: District/Public

Location

Neighborhood Information
Community Features: Curbs, Sidewalks, Storm Drains, Street Lighting, Suburban

School Information
Elementary School: Castle Rock
Middle Or Junior School: Chaparral
High School: Diamond Bar
High School District: Walnut Valley Unified
Elementary School 2: CASROC
Middle Or Junior School 2: CHAPAR2
High School 2: DIABAR

Location Information
Latitude: 33.96383800
Longitude: -117.84461500
Directions: Cold Springs>Barbi>Hawkwood>Running Branch
Zoning: LCR19000*

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,880
Stories: —
Lot Size: 0.25 acres
Style: Single Family Residential
Year Built: 1981
Year Renovated: 1981
County: Los Angeles County
APN: 8714012017

Home facts updated by county records on Aug 30, 2026

Other

Miscellaneous Information
Exclusions: 3 Pendant Light Fixtures located in Kitchen Area and Dinette Area are not Included with Sale. Craftsman cabinet in Garage Also.

Listing Information
Days Active in MLS: 87
Continuous Days Active in MLS: 87

Listing Agent Information
List Agent First Name: Miryam
List Agent Last Name: White

Listing Office Information
List Office Name: Century 21 Award

Selling Agent Information
Buyer Agent First Name: Ishwar
Buyer Agent Last Name: Malani

Selling Office Information
Buyer Office Name: Century 21 Care

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

5% 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

$1.41M – $1.71M

Reach more buyers when you sell with Redfin. Save up to $14,838 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

$6,500,000

11 beds12 baths17,241 sq ft

22588 Ridge Line Rd, Diamond Bar, CA 91765

ReMax 2000 Realty

$1,489,000

4 beds3 baths2,986 sq ft

2611 Rudy, Rowland Heights, CA 91748

OPEN SUN, 1PM TO 4PM3D & VIDEO TOUR

$3,980,000

8 beds8.5 baths8,264 sq ft

2820 Shadow Canyon Dr, Diamond Bar, CA 91765

3D WALKTHROUGH

$2,799,000

5 beds5.5 baths6,343 sq ft

2233 Wind River Ln, Rowland Heights, CA 91748

$5,380,000

6 beds7 baths9,038 sq ft

2828 Water Course Dr, Diamond Bar, CA 91765

LISTED BY REDFIN3D & VIDEO TOUR

$4,980,000

7 beds7.5 baths7,660 sq ft

2611 Steeplechase Ln, 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 21203 Running Branch Rd

Data from public records.

Address	Redfin Estimate
21245 Running Branch Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 2192 Sq. Ft.	$1,274,810
21115 Running Branch Road, Diamond Bar, CA 3 Beds \| 3 Baths \| 2880 Sq. Ft.	$1,378,472

Address	Redfin Estimate
21233 Running Branch Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 2695 Sq. Ft.	$1,601,548
21135 Running Branch Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 2988 Sq. Ft.	$1,433,889

Address	Redfin Estimate
21221 Running Branch Road, Diamond Bar, CA 5 Beds \| 3 Baths \| 2798 Sq. Ft.	$1,412,804
21155 Running Branch Road, Diamond Bar, CA 5 Beds \| 3 Baths \| 2558 Sq. Ft.	$1,613,592

Property information provided by CRMLS when last listed in 2018. 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