21317 Running Branch Rd, Diamond Bar, CA 91765

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Off Market Apr 2013 for $800K

$1,521,815

Est. refi paymentEst. refi $5,198/mo

•

3,000

sq ft

21317 Running Branch Rd, Diamond Bar, CA 91765

About this home

STANDARD SALE!!! View!! View!! View!! Beautiful view~~ house in a prestigious walnut school district. Remodeled & upgraded!! Great executive home with 5 bedrooms (4 bedrooms plus 1 large bonus room) & 3 bathrooms, 1 BR & 1 BA downstairs. Remodeled kitchen w/ upgraded granite counter top, Upgraded wood flooring through out the house. Energy saving double pane windows. Formal living room and formal dining room with vaulted ceiling. Double entry doors with 3 car garage. Cozy fireplace with wet bar in family room. Nice back yard w/ professional landscaping and views of city lights and mountain.

Single-familyProperty Type

1979Year Built

9,814 sq ftLot Size

$507Est. Price/Sq.Ft.

3 car garageParking

Listed by Julie Hwang •DRE #01303658 • New Star Realty & Inv.

Listed by Andy Hwang •DRE #01251255 • New Star Realty & Inv.

Bought with Amy Ji •DRE #01743616 • Presidential Inc

Redfin checked: a minute ago

•Source:CRMLS #TR13020782

Redfin Estimate

$1,521,815

$722K since sold in April 2013$2,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.2% higher than the average sale price ($1.46M) of 6 comparable homes.

SOLD MAY 12, 2026
$1,680,000
A
4 beds3 baths2,697 sq ft
21535 Chirping Sparrow, Diamond Bar, CA 91765
SOLD MAR 25, 2026
$1,250,000
B
4 beds3 baths2,380 sq ft
3396 Hawkwood, Diamond Bar, CA 91765
SOLD AUG 21, 2026
$1,680,000
C
5 beds3 baths3,006 sq ft
21642 High Bluff Rd, Diamond Bar, CA 91765
Century 21 Masters
SOLD JUL 27, 2026
$1,315,000
D
4 beds3 baths2,336 sq ft
3595 Hawkwood, Diamond Bar, CA 91765
SOLD MAY 14, 2026
$1,330,000
E
4 beds3 baths2,037 sq ft
3357 Bent Twig, Diamond Bar, CA 91765
SOLD MAY 28, 2026
$1,505,000
F
4 beds3 baths2,712 sq ft
3249 Hawkwood Rd, Diamond Bar, CA 91765

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Earn from this home

Sell

$995,297

Est. take-home

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Refinance

Est. cash available

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Rent

$3,973/mo

Redfin rental estimate

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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 21317 Running Branch Rd

Date

Event

Price

CRMLS #WS24109532

Jul 12, 2024

Rental Removed

$4,300

$1/sq ft

Jul 4, 2024

Price Changed

$4,300

$1/sq ft

May 31, 2024

Listed for Rent

$4,500

$2/sq ft

CRMLS #TR13020782

Apr 22, 2013

Sold

$800,000

$267/sq ft

Apr 2, 2013

Pending

—

Mar 21, 2013

Pending

—

Feb 11, 2013

Listed

$789,000

$263/sq ft

CRMLS #H12073958

Oct 4, 2012

Delisted

—

Aug 13, 2012

Price Changed

$785,000

$262/sq ft

Jun 12, 2012

Listed

$789,000

$263/sq ft

CRMLS #H402470

Apr 30, 2004

Sold

$690,000

$230/sq ft

Mar 10, 2004

Listed

$688,000

$229/sq ft

Public Records

May 27, 1999

Sold

$366,000

$122/sq ft

Public Records

Mar 27, 1998

Sold

$298,000

$99/sq ft

Public Records

Mar 27, 1991

Sold

$315,000

$105/sq ft

Public Records

Dec 26, 1986

Sold

$172,000

$57/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$12,499 (+5.1%)

$466,829 + $518,300

$985,129

2024

$11,893 (+2.5%)

$466,829 + $518,300

$985,129

2023

$11,608 (+2.1%)

$457,676 + $508,138

$965,814

2022

$11,368 (+1.9%)

$448,702 + $498,175

$946,877

2021

$11,156 (+1.3%)

$439,904 + $488,407

$928,311

2020

$11,013 (+2.0%)

$431,279 + $478,831

$910,110

2019

$10,802 (+3.8%)

$426,857 + $473,922

$900,779

2018

$10,402 (+4.8%)

$418,488 + $464,630

$883,118

2017

$9,924 (+3.1%)

$402,239 + $446,589

$848,828

2016

$9,630 (−0.6%)

$402,239 + $446,589

$848,828

2015

$9,691

$394,352 + $437,833

$832,185

2014

$9,699 (+14.4%)

$380,821 + $422,810

$803,631

2012

$8,476 (+1.0%)

$321,900 + $372,200

$694,100

2011

$8,388 (+15.0%)

$321,900 + $372,200

$694,100

2010

$7,292 (+0.5%)

$321,900 + $372,200

$694,100

2009

$7,257 (−16.8%)

$277,700 + $321,100

$598,800

2008

$8,721

$277,700 + $321,100

$598,800

Tax history for 21317 Running Branch Rd

Year

Property tax

Land + Additions

Assessment*

2025

$12,499 (+5.1%)

$466,829 + $518,300

$985,129

2024

$11,893 (+2.5%)

$466,829 + $518,300

$985,129

2023

$11,608 (+2.1%)

$457,676 + $508,138

$965,814

2022

$11,368 (+1.9%)

$448,702 + $498,175

$946,877

2021

$11,156 (+1.3%)

$439,904 + $488,407

$928,311

2020

$11,013 (+2.0%)

$431,279 + $478,831

$910,110

2019

$10,802 (+3.8%)

$426,857 + $473,922

$900,779

2018

$10,402 (+4.8%)

$418,488 + $464,630

$883,118

2017

$9,924 (+3.1%)

$402,239 + $446,589

$848,828

2016

$9,630 (−0.6%)

$402,239 + $446,589

$848,828

2015

$9,691

$394,352 + $437,833

$832,185

2014

$9,699 (+14.4%)

$380,821 + $422,810

$803,631

2012

$8,476 (+1.0%)

$321,900 + $372,200

$694,100

2011

$8,388 (+15.0%)

$321,900 + $372,200

$694,100

2010

$7,292 (+0.5%)

$321,900 + $372,200

$694,100

2009

$7,257 (−16.8%)

$277,700 + $321,100

$598,800

2008

$8,721

$277,700 + $321,100

$598,800

*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

9,832 Sq. Ft.

Year renovated

1979

Sq. Ft.

2,798

Year built

1979

Style

Single Family Residential

County

Los Angeles County

APN

8714011035

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
Has Parking
# of Parking Spaces: 3

Interior

Laundry Information
Has Laundry
Individual Room

Kitchen Information
Appliances: Dishwasher, Garbage Disposal
Has Appliances
Area

Bathroom Information
# of Baths (Full): 3

Cooling Information
Central
Has Cooling

Room Information
Entry, Living Room, Main Floor Bedroom, Primary Suite, Walk-In Closet, Separate Family Room

Fireplace Information
Family Room
Has Fireplace

Heating Information
Central Furnace
Has Heating

Interior Features
Double Door Entry
Levels: Two

Exterior

Exterior Information
Roof: Tile

Exterior Features
Pool Features: None

Lot Information
Lot Size Source: Assessor's Data
Lot Features: Lot-Level/Flat, Lot 6500-9999

Property Information
Total # of Units: 1
Common Walls: No Common Walls
Living Area Source: Estimated
Parcel Number: 8714011035
Has View
Year Built Source: Assessor

Financial

Assesments Information
Assessments: Unknown

Utilities

Utilities Information
Sewer Connected, Sewer Available
Water Source: District/Public

Location

Multi-Unit Information
# of Units In Community: 1

Neighborhood Information
Community Features: Suburban

School Information
High School District: Walnut Valley Unified

Location Information
Latitude: 33.96432500
Longitude: -117.84260600

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,798
Stories: —
Lot Size: 9,832 square feet
Style: Single Family Residential
Year Built: 1979
Year Renovated: 1979
County: Los Angeles County
APN: 8714011035

Home facts updated by county records on Aug 30, 2026

Other

Listing Information
Days Active in MLS: 52
Continuous Days Active in MLS: 115

Listing Agent Information
List Agent First Name: Julie
List Agent Last Name: Hwang
Co-List Agent First Name: Andy
Co-List Agent Last Name: Hwang

Listing Office Information
List Office Name: New Star Realty & Inv.
Co-List Office Name: New Star Realty & Inv.

Selling Agent Information
Buyer Agent First Name: AMY
Buyer Agent Last Name: JI

Selling Office Information
Buyer Office Name: Presidential 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
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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

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

$1.45M – $1.75M

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Home values near 21317 Running Branch Rd

Data from public records.

Address	Redfin Estimate
21393 Running Branch Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 2798 Sq. Ft.	$1,601,629
21351 Running Branch Road, Diamond Bar, CA 3 Beds \| 3 Baths \| 2380 Sq. Ft.	$1,245,512

Address	Redfin Estimate
21377 Running Branch Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 2695 Sq. Ft.	$1,338,173
21333 Running Branch Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 2697 Sq. Ft.	$1,317,895

Address	Redfin Estimate
21365 Running Branch Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 2037 Sq. Ft.	$1,240,824
21299 Running Branch Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 2037 Sq. Ft.	$1,251,788

Property information provided by CRMLS when last listed in 2024. This data may not match . Learn more.

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