21266 Running Branch Rd, Diamond Bar, CA 91765

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Off Market Sep 2024 for $1.4M

$1,537,401

Est. refi paymentEst. refi $6,225/mo

•

2,697

sq ft

21266 Running Branch Rd, Diamond Bar, CA 91765

About this home

Beautiful South Diamond Bar property with 4 bedroom, 3 bathrooms (one bedroom one bathroom downstairs), 3 car attached garage. Front yard with many beautiful palm trees. Double front doors, vaulted ceiling at entry and living room. Open and bright living room with wood flooring and plenty of natural light. Formal dining room with custom chandelier. Remodeled gourmet kitchen with quartz counter tops, floor to ceiling white shaker cabinets, custom backsplash, newer appliances, including double ovens, microwave and dishwasher. Breakfast nook with natural light. Family room with travertine framed fireplace and sliding door to the backyard. Downstairs guest bedroom/office. Elegant spiral stairs to the second floor. Large primary bedroom with high ceiling, retreat area and two closets. Primary bathroom with dual sinks, bathtub and separate shower room. A private laundry room with built-in storage. Other features include: New roof, laminated wood flooring throughout, tiles in bathrooms, custom two-tone paint, newer double-pane windows and sliding doors, crown moldings and window blinds. Custom chandeliers, recessed lights, ceiling fans. Entire house has new plumbing system, newer A/C unit, water softener. 12 pieces solar panels lease fully paid off! Professionally landscaped gardens, entertaining backyard with fully covered patio, swimming pool, spa, fruit trees and flowers. Large usable lot, RV parking space, a lot of potential. Super convenient location, close to shopping centers, easy access to freeway 60/67. Excellent Walnut Schools!

Single-familyProperty Type

1979Year Built

0.34 acresLot Size

$570Est. Price/Sq.Ft.

3 car garageParking

Listed by Alex Zhao •DRE #01749677 • ReMax 2000 Realty

Listed by Qinfei Li •DRE #02179299 • ReMax 2000 Realty

Contact: 626-217-8885

Bought with YAN LONG •DRE #02179458 • RE/MAX 2000 REALTY

Redfin checked: 4 minutes ago

•Source:CRMLS #TR24130326

Redfin Estimate

$1,537,401

$112K since sold in September 2024$3,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 9% higher than the average sale price ($1.41M) 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 MAR 25, 2026
$1,250,000
C
4 beds3 baths2,380 sq ft
3396 Hawkwood, 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 JUL 27, 2026
$1,315,000
E
4 beds3 baths2,336 sq ft
3595 Hawkwood, Diamond Bar, CA 91765
SOLD APR 15, 2026
$1,379,000
F
4 beds3 baths2,697 sq ft
3424 Hawkwood Rd, Diamond Bar, CA 91765
Vimvi California

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Earn from this home

Sell

$353,039

Est. take-home

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Refinance

Est. cash available

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Rent

$4,132/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
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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 21266 Running Branch Rd

Date

Event

Price

CRMLS #TR24130326

Sep 20, 2024

Sold

$1,425,000

$528/sq ft

Aug 31, 2024

Contingent

—

Jul 30, 2024

Price Changed

$1,468,000

$544/sq ft

Jul 10, 2024

Relisted

—

Jul 9, 2024

Listed

$1,488,000

$552/sq ft

CRMLS #TR15029806

May 18, 2015

Sold

$960,000

$356/sq ft

May 15, 2015

Listing Removed

—

Feb 11, 2015

Listed

$988,000

$366/sq ft

Standard Sale. Beautiful estate in the upscale prestigious Diamond Ridge Village next to the famous Country in South Diamond Bar Hills. This gorgeous home is a true gem which has more than money can buy! Situated in a quiet secluded hillside of Walnut Schools, this lovely sparkling pool house greets guests with double-door entry, then to a grant wood-floor foyer to show the grandieur of this home. The mainfloor features include a spacious living room, high ceiling, formal dining room, a large step-down family room with travertine fireplace, recess light, crown molding, ceiling fans, updated new appliances and faucets, a private laundry room, and 3-car garage with plenty of storage space. The 2nd floor features an over-sized double-door master bedroom with a bonus room, retreat, 3 large closets, high ceiling, vanity mirror, sunken tub, skylight, separate shower stall, and lots of lights. There is also a jack-n-jill bathroom which is shared by 2 spacious bedrooms. All 3 bathrooms are remodeled with customer light fixture, granite countertops, and vanity mirrors. Other amenities include a heated spa, large pool, covered patio with stone furniture, ceiling fans, professional landscaped yard, RV parking. Everything is Remodeled.

CRMLS #H11108162

Sep 27, 2011

Sold

$700,000

$260/sq ft

Aug 28, 2011

Pending

—

Aug 22, 2011

Price Changed

$739,000

$274/sq ft

Aug 17, 2011

Listed

$699,000

$259/sq ft

CRMLS #I530245

Feb 22, 2006

Sold

$810,000

$300/sq ft

Oct 14, 2005

Listed

$840,000

$311/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$17,692 (+27.7%)

$1,006,400 + $418,600

$1,425,000

2024

$13,858 (+2.5%)

$1,006,400 + $418,600

$1,425,000

2023

$13,525 (+2.1%)

$564,630 + $566,515

$1,131,145

2022

$13,247 (+1.9%)

$553,559 + $555,407

$1,108,966

2021

$13,005 (+1.3%)

$542,705 + $544,517

$1,087,222

2020

$12,839 (+2.0%)

$532,064 + $533,841

$1,065,905

2019

$12,592 (+4.0%)

$526,609 + $528,368

$1,054,977

2018

$12,102 (+4.8%)

$516,284 + $518,008

$1,034,292

2017

$11,544 (+3.0%)

$496,237 + $497,894

$994,131

2016

$11,210 (+28.4%)

$496,237 + $497,894

$994,131

2015

$8,728 (−0.1%)

$486,507 + $488,132

$974,639

2014

$8,738 (+1.0%)

$328,086 + $389,154

$717,240

2012

$8,649 (−3.2%)

$326,604 + $387,396

$714,000

2011

$8,932 (+19.1%)

$320,200 + $379,800

$700,000

2010

$7,501 (+0.5%)

$446,200 + $293,200

$739,400

2009

$7,466 (−17.8%)

$371,100 + $243,800

$614,900

2008

$9,087

$371,100 + $243,800

$614,900

Tax history for 21266 Running Branch Rd

Year

Property tax

Land + Additions

Assessment*

2025

$17,692 (+27.7%)

$1,006,400 + $418,600

$1,425,000

2024

$13,858 (+2.5%)

$1,006,400 + $418,600

$1,425,000

2023

$13,525 (+2.1%)

$564,630 + $566,515

$1,131,145

2022

$13,247 (+1.9%)

$553,559 + $555,407

$1,108,966

2021

$13,005 (+1.3%)

$542,705 + $544,517

$1,087,222

2020

$12,839 (+2.0%)

$532,064 + $533,841

$1,065,905

2019

$12,592 (+4.0%)

$526,609 + $528,368

$1,054,977

2018

$12,102 (+4.8%)

$516,284 + $518,008

$1,034,292

2017

$11,544 (+3.0%)

$496,237 + $497,894

$994,131

2016

$11,210 (+28.4%)

$496,237 + $497,894

$994,131

2015

$8,728 (−0.1%)

$486,507 + $488,132

$974,639

2014

$8,738 (+1.0%)

$328,086 + $389,154

$717,240

2012

$8,649 (−3.2%)

$326,604 + $387,396

$714,000

2011

$8,932 (+19.1%)

$320,200 + $379,800

$700,000

2010

$7,501 (+0.5%)

$446,200 + $293,200

$739,400

2009

$7,466 (−17.8%)

$371,100 + $243,800

$614,900

2008

$9,087

$371,100 + $243,800

$614,900

*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

0.34 Acres

Year renovated

1979

Sq. Ft.

2,697

Year built

1979

Style

Single Family Residential

County

Los Angeles County

APN

8714020005

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 - Concrete
Has Parking
# of Parking Spaces: 3

Interior

Laundry Information
Has Laundry
Gas & Electric Dryer Hookup, Individual Room, Washer Hookup

Kitchen Information
Appliances: Convection Oven, Garbage Disposal
Has Appliances
Breakfast Nook, Formal Dining Room

Bathroom Information
# of Baths (Full): 3

Cooling Information
Central
Has Cooling

Room Information
Bonus Room, Family Room, Formal Entry, Jack & Jill, Living Room, Main Floor Bedroom, Primary Bedroom, Multi-Level Bedroom, Retreat

Fireplace Information
Family Room
Has Fireplace

Flooring Information
Carpet, Tile

Heating Information
Forced Air
Has Heating

Interior Features
Sliding Glass Door(s)
Entry Level: 1
Entry Location: Ground
Crown Moldings, Granite Counters, High Ceilings (9 Feet+), Recessed Lighting, Unfurnished
Levels: Two
Main Level Bathrooms: 1
Main Level Bedrooms: 1
Security Features: Carbon Monoxide Detector(s)
Spa Features: In Ground
Has Spa
Window Features: Skylights

Exterior

Exterior Information
Structure Type: House
Roof: Shingle
Construction Materials: Stucco

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

Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: Back Yard, Front Yard, Level with Street, Sprinklers Timer

Property Information
Total # of Units: 1
Common Walls: No Common Walls
Living Area Source: Assessor's Data
Parcel Number: 8714020005
Property Condition: Turnkey, Updated/Remodeled
Total # of Stories: 2
Has View
Year Built Source: Assessor
Property ADU: No

Financial

Assesments Information
Assessments: Unknown

Utilities

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

Location

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

School Information
Elementary School: Castle Rock
Middle Or Junior School: South Pointe
High School: Diamond Bar
High School District: Walnut Valley Unified
Elementary School 2: CASROC
Middle Or Junior School 2: SOUPOI
High School 2: DIABAR

Location Information
Latitude: 33.96346900
Longitude: -117.84286400
Directions: Cross Streets: Diamond bar bl & Cold Springs

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,697
Stories: —
Lot Size: 0.34 acres
Style: Single Family Residential
Year Built: 1979
Year Renovated: 1979
County: Los Angeles County
APN: 8714020005

Home facts updated by county records on Aug 30, 2026

Other

Listing Information
IDX Contact Info: 626-217-8885
Days Active in MLS: 51
Continuous Days Active in MLS: 51

Listing Agent Information
List Agent First Name: Alex
List Agent Last Name: Zhao
Co-List Agent First Name: Qinfei
Co-List Agent Last Name: Li

Listing Office Information
List Office Name: ReMax 2000 Realty
Co-List Office Name: ReMax 2000 Realty

Selling Agent Information
Buyer Agent First Name: YAN
Buyer Agent Last Name: LONG

Selling Office Information
Buyer Office Name: RE/MAX 2000 REALTY

Around this home

Schools

Castle Rock Elementary School

Public K-5 • Assigned • 0.6mi

10/10

South Pointe Middle School

Public 6-8 • Assigned • 2.0mi

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
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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

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

$1.46M – $1.77M

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1515 Sunbluff Dr, Diamond Bar, CA 91765

OPEN SUN, 1PM TO 4PM

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Home values near 21266 Running Branch Rd

Data from public records.

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

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

Address	Redfin Estimate
21317 Running Branch Rd, Diamond Bar, CA 5 Beds \| 3 Baths \| 3000 Sq. Ft.	$1,521,815
21255 Running Branch Rd, Diamond Bar, CA 4 Beds \| 3 Baths \| 2800 Sq. Ft.	$1,336,000

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

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