21299 Running Branch Rd, Diamond Bar, CA 91765

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Off Market Jan 2016 for $715K

$1,251,788

Est. refi paymentEst. refi $4,645/mo

•

2,037

sq ft

21299 Running Branch Rd, Diamond Bar, CA 91765

About this home

Situated High In The Hills Of Diamond Bar With Panoramic Views Of The Hills And Mountains, This Recently Updated Single Level 4 Bedroom View Home with a 3 Car Garage and Potential RV Parking Offers Over 2000 Square Feet. The Home Features Formal Living And Dining Room With Vaulted Ceilings, Fireplace, And Picturesque Bay Window. Family Room Overlooking Backyard And View Is Situated Next To The Large Kitchen With Breakfast Nook. Master Suite With Vaulted Ceilings Offers A Slider Glass Door To The Back Yard In Addition To Dual Wardrobe Closets And Step Down Tiled Tub/Shower. In Addition To The Master Suite, 3 Large Bedrooms Offer An Option For An Office Or 4th Bedroom. The Home Was Recently Renovated With Laminate Flooring And Fresh Paint Throughout And Is In Move-In Ready Condition. 3 Car Garage Provides Substantial Storage Plus An Area With Gated RV Potential. Beautifully Landscaped Front Yard And Entry. Back Yard Is A Canvas With Tons Of Potential To Make It Your Dream Entertainment Yard With Gorgeous Views. Great Opportunity To Own A Beautiful View Home Near Freeways, Walnut Schools, And Major Shopping In LA And Orange Counties.

Single-familyProperty Type

1979Year Built

0.28 acresLot Size

$615Est. Price/Sq.Ft.

3 car garageParking

Listed by Jerry Brakebill •DRE #01207485 • Re/Max Cornerstone

Bought with Hung Ngo •DRE #01808701 • ETOPREALESTATE

Redfin checked: a minute ago

•Source:CRMLS #PW15230461

Redfin Estimate

$1,251,788

$537K since sold in January 2016$7,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 8.1% lower than the average sale price ($1.36M) of 6 comparable homes.

SOLD MAY 14, 2026
$1,330,000
A
4 beds3 baths2,037 sq ft
3357 Bent Twig, Diamond Bar, CA 91765
SOLD FEB 6, 2026
$1,330,000
B
4 beds3 baths2,302 sq ft
21307 Chirping Sparrow Rd, 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 JAN 16, 2026
$1,518,888
D
4 beds2.5 baths2,397 sq ft
21187 Ambushers, Diamond Bar, CA 91765
SOLD MAR 25, 2026
$1,250,000
E
4 beds3 baths2,380 sq ft
3396 Hawkwood, 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

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Earn from this home

Sell

$742,892

Est. take-home

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Refinance

Est. cash available

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Rent

$3,434/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

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23308 Quail Smt, Diamond Bar, CA 91765
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OPEN SUN, 1AM TO 3PM
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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
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4 beds2.5 baths1,893 sq ft
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OPEN SUN, 1PM TO 4PM
$1,150,000
4 beds3 baths1,747 sq ft
1036 Cogburn Ln, Diamond Bar, CA 91765
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1030 Golden Springs Dr Unit B, Diamond Bar, CA 91765
See all

Provided by Redfin

Sale history for 21299 Running Branch Rd

Year

Property tax

Land + Additions

Assessment*

2025

$10,868 (+5.5%)

$545,609 + $300,800

$846,409

2024

$10,297 (+2.4%)

$545,609 + $300,800

$846,409

2023

$10,051 (+2.1%)

$534,911 + $294,902

$829,813

2022

$9,844 (+1.9%)

$524,423 + $289,120

$813,543

2021

$9,663 (+1.3%)

$514,141 + $283,451

$797,592

2020

$9,541 (+2.0%)

$504,060 + $277,894

$781,954

2019

$9,358 (+4.1%)

$498,892 + $275,045

$773,937

2018

$8,989 (+4.8%)

$489,110 + $269,652

$758,762

2017

$8,576 (+158.4%)

$470,118 + $259,182

$729,300

2016

$3,319 (−0.5%)

$470,118 + $259,182

$729,300

2015

$3,335 (−0.3%)

$69,497 + $194,378

$263,875

2014

$3,344 (+1.4%)

$67,114 + $187,709

$254,823

2012

$3,299 (+3.0%)

$66,811 + $186,861

$253,672

2011

$3,204 (+0.9%)

$65,501 + $183,198

$248,699

2010

$3,177 (+0.6%)

$64,217 + $179,606

$243,823

2009

$3,157 (+2.9%)

$63,738 + $178,264

$242,002

2008

$3,066

$63,890 + $178,688

$242,578

Tax history for 21299 Running Branch Rd

Year

Property tax

Land + Additions

Assessment*

2025

$10,868 (+5.5%)

$545,609 + $300,800

$846,409

2024

$10,297 (+2.4%)

$545,609 + $300,800

$846,409

2023

$10,051 (+2.1%)

$534,911 + $294,902

$829,813

2022

$9,844 (+1.9%)

$524,423 + $289,120

$813,543

2021

$9,663 (+1.3%)

$514,141 + $283,451

$797,592

2020

$9,541 (+2.0%)

$504,060 + $277,894

$781,954

2019

$9,358 (+4.1%)

$498,892 + $275,045

$773,937

2018

$8,989 (+4.8%)

$489,110 + $269,652

$758,762

2017

$8,576 (+158.4%)

$470,118 + $259,182

$729,300

2016

$3,319 (−0.5%)

$470,118 + $259,182

$729,300

2015

$3,335 (−0.3%)

$69,497 + $194,378

$263,875

2014

$3,344 (+1.4%)

$67,114 + $187,709

$254,823

2012

$3,299 (+3.0%)

$66,811 + $186,861

$253,672

2011

$3,204 (+0.9%)

$65,501 + $183,198

$248,699

2010

$3,177 (+0.6%)

$64,217 + $179,606

$243,823

2009

$3,157 (+2.9%)

$63,738 + $178,264

$242,002

2008

$3,066

$63,890 + $178,688

$242,578

*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

0.28 Acres

Year renovated

1979

Sq. Ft.

2,037

Year built

1979

Style

Single Family Residential

County

Los Angeles County

APN

8714011036

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 - Concrete, Direct Garage Access, Garage, RV Access/Parking, See Remarks
Has Parking
# of Parking Spaces: 3

Interior

Laundry Information
Has Laundry
Gas & Electric Dryer Hookup, In Garage

Kitchen Information
Appliances: Dishwasher, Electric Oven, Electric Stove, Garbage Disposal
Has Appliances
Breakfast Nook, Formal Dining Room

Bathroom Information
# of Baths (Full): 2

Cooling Information
Central
Has Cooling

Room Information
All Bedrooms Down, Family Room, Formal Entry, Main Floor Bedroom, Main Floor Primary Bedroom, Primary Suite, Office

Fireplace Information
Gas, Living Room
Has Fireplace

Flooring Information
Laminated, Tile

Heating Information
Central Furnace
Has Heating

Interior Features
Block Walls, Cathedral-Vaulted Ceilings, Tile Counters
Levels: One

Exterior

Exterior Features
Rain Gutters
Patio And Porch Features: Concrete, Slab
Has Patio
Pool Features: None

Lot Information
Lot Size Source: Assessor's Data
Lot Features: Back Yard, Front Yard, Lot 10000-19999 Sqft

Property Information
Total # of Units: 1
Common Walls: No Common Walls
Living Area Source: Assessor's Data
Parcel Number: 8714011036
Total # of Stories: 1
Has View
Year Built Source: Assessor

Utilities

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

Location

Multi-Unit Information
# of Units In Community: 1

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

Location Information
Latitude: 33.96422200
Longitude: -117.84281900

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 2,037
Stories: —
Lot Size: 0.28 acres
Style: Single Family Residential
Year Built: 1979
Year Renovated: 1979
County: Los Angeles County
APN: 8714011036

Home facts updated by county records on Aug 30, 2026

Other

Listing Information
Days Active in MLS: 75
Continuous Days Active in MLS: 75

Listing Agent Information
List Agent First Name: Jerry
List Agent Last Name: Brakebill

Listing Office Information
List Office Name: ReMax Realty Centre

Selling Agent Information
Buyer Agent First Name: HUNG
Buyer Agent Last Name: NGO

Selling Office Information
Buyer Office Name: ETOPREALESTATE

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

$1.19M – $1.44M

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Home values near 21299 Running Branch Rd

Data from public records.

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

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

Address	Redfin Estimate
21351 Running Branch Rd, Diamond Bar, CA 3 Beds \| 3 Baths \| 2380 Sq. Ft.	$1,245,512
21271 Running Branch Rd, Diamond Bar, CA 6 Beds \| 3 Baths \| 3493 Sq. Ft.	$1,404,511

Property information provided by CRMLS when last listed in 2015. This data may not match . Learn more.

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