23909 Highland Valley Rd, Diamond Bar, CA 91765

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Off market sep 2016 for $585K

$1,036,166

Est. refi paymentEst. refi $4,039/mo

•

2,021

sq ft

23909 Highland Valley Rd, Diamond Bar, CA 91765

About this home

* * Fabulous Diamond Bar Tri-Level Home near Freeways, Shopping and Prestigious Schools * * Great Curb Appeal with Serene landscaped Atrium * * Double Door Entry and Vaulted Ceilings * * Lovely Living Room with Newer Windows looking out to “Park-Like” and very Private back yard * * Covered Patio leading to Bright and Airy Kitchen * * Large Family Room with Amazing Custom “gas burning" Fireplace with Mantle * * Entertaining Bar with Sink * * Dual Air Conditioner for upstairs and downstairs * * New Thermostat * * Ceiling Fans throughout * * Alarm System * * Very Large Bedrooms with Huge Closets * * Master Bedroom has Gorgeous View of the Mountains and City Lights * * Other 2 Bedrooms open onto a recently remodeled Balcony * * Balcony offers Sunset and City Light Views! * * Some Outside Lights are on timers, others are Security Lights * * Automatic Drip Irrigation and Sprinkler Systems * * Some windows have Sun Shades or Custom Valances * * HOA includes Community Pool and Spa, BBQ with Picnic Area, and Clubhouse * * Ambiance of this home has a Wonderful Feeling of Peace and Tranquility * * If you're looking to move right into your Dream Home. .. look no further * * Agents - bring your fussy buyers! This home is Very Clean and shows with Pride of Ownership!

Single-familyProperty Type

1968Year Built

7,063 sq ftLot Size

$513Est. Price/Sq.Ft.

2 car garageParking

Listed by Robert Harder •DRE #00978014 • RE/MAX INNOVATIONS

Bought with Minh Hua-Trinh •DRE #01340834 • iHome Investment Inc

Redfin checked: 4 minutes ago

•Source:CRMLS #CV16148396

Redfin Estimate

$1,036,166

$451K since sold in September 2016$12K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 3.1% lower than the average sale price ($1.07M) of 6 comparable homes.

SOLD AUG 13, 2026
$1,145,000
A
4 beds3 baths2,021 sq ft
1109 Overlook Rdg, Diamond Bar, CA 91765
SOLD MAY 22, 2026
$1,170,500
B
4 beds3 baths2,261 sq ft
23831 Strange Crk, Diamond Bar, CA 91765
SOLD JUL 20, 2026
$1,100,000
C
4 beds3 baths2,002 sq ft
1100 Reno Rdg, Diamond Bar, CA 91765
SOLD AUG 26, 2026
$900,000
D
3 beds3 baths2,083 sq ft
49 Stagecoach Dr, Pomona, CA 91766
SOLD SEP 4, 2026
$870,000
E
4 beds2 baths1,994 sq ft
1160 N Del Sol, Diamond Bar, CA 91765
SOLD JUL 24, 2026
$1,233,000
F
4 beds2 baths2,075 sq ft
23923 Minnequa Dr, Diamond Bar, CA 91765

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Earn from this home

Sell

$611,946

Est. take-home

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Refinance

Est. cash available

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Rent

$3,451/mo

Redfin rental estimate

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Market trends in 91765, CA

Last updated September 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-List Price

98.5%

0.6% MoM

Median sale price

$1.1M

$10K MoM

Avg. days on market

43d

1 days MoM

Recently sold homes

100

5 MoM

New listings for sale

NEW 28 HRS AGO
$4,000,000
6 beds5 baths5,797 sq ft
1809 Diamond Knl, Diamond Bar, CA 91765
$1,480,000
5 beds3 baths2,447 sq ft
1667 Cypress Grove Ln, Diamond Bar, CA 91765
$1,170,000
4 beds2.5 baths2,154 sq ft
1029 Twin Cyn, Diamond Bar, CA 91765
FOR SALE BY OWNER
$1,200,000
3 beds2 baths1,339 sq ft
512 Armitos Pl, Diamond Bar, CA 91765
COMING SOON
$899,000
3 beds2 baths1,274 sq ft
22922 Dry Crk, Diamond Bar, CA 91765
OPEN SAT, 2PM TO 5PM
$1,499,900
5 beds3 baths3,203 sq ft
24215 Delta Dr, Diamond Bar, CA 91765
$468,000
2 beds2.5 baths1,056 sq ft
22871 Hilton Head Dr #230, Diamond Bar, CA 91765
$1,363,000
4 beds5 baths2,430 sq ft
883 Terrace W, Pomona, CA 91765
$1,050,000
4 beds2 baths1,859 sq ft
23547 Decorah, Diamond Bar, CA 91765
$979,900
4 beds2 baths1,600 sq ft
239 N Palo Cedro, Diamond Bar, CA 91765
See all

Provided by Redfin

Redfin agents who toured

Multi level home with the family room down a short flight of stairs and the bedroom up a short flight of stairs. Updated kitchen with lots of windows towards the rear yard.
10 years ago• May not reflect the current state of the home
Michael Drylie
Redfin Associate agent

Sale history for 23909 Highland Valley Rd

Year

Property tax

Land + Additions

Assessment*

2025

$9,347 (+8.6%)

$528,443 + $164,071

$692,514

2024

$8,606 (+2.0%)

$518,082 + $160,854

$678,936

2023

$8,439 (+1.6%)

$507,924 + $157,700

$665,624

2022

$8,310 (+2.3%)

$497,965 + $154,608

$652,573

2021

$8,126 (+0.3%)

$488,201 + $151,577

$639,778

2020

$8,098 (−2.5%)

$478,629 + $148,605

$627,234

2019

$8,306 (+8.2%)

$473,722 + $147,082

$620,804

2018

$7,676 (+1.8%)

$464,434 + $144,199

$608,633

2017

$7,543 (+376.5%)

$446,400 + $138,600

$585,000

2016

$1,583 (+0.8%)

$446,400 + $138,600

$585,000

2015

$1,570 (+0.2%)

$22,755 + $77,851

$100,606

2014

$1,567 (+1.5%)

$21,975 + $75,180

$97,155

2012

$1,544 (+3.2%)

$21,876 + $74,841

$96,717

2011

$1,496 (+1.0%)

$21,448 + $73,374

$94,822

2010

$1,482 (+3.3%)

$21,028 + $71,936

$92,964

2009

$1,435 (+5.1%)

$20,871 + $71,399

$92,270

2008

$1,365

$20,921 + $71,569

$92,490

Tax history for 23909 Highland Valley Rd

Year

Property tax

Land + Additions

Assessment*

2025

$9,347 (+8.6%)

$528,443 + $164,071

$692,514

2024

$8,606 (+2.0%)

$518,082 + $160,854

$678,936

2023

$8,439 (+1.6%)

$507,924 + $157,700

$665,624

2022

$8,310 (+2.3%)

$497,965 + $154,608

$652,573

2021

$8,126 (+0.3%)

$488,201 + $151,577

$639,778

2020

$8,098 (−2.5%)

$478,629 + $148,605

$627,234

2019

$8,306 (+8.2%)

$473,722 + $147,082

$620,804

2018

$7,676 (+1.8%)

$464,434 + $144,199

$608,633

2017

$7,543 (+376.5%)

$446,400 + $138,600

$585,000

2016

$1,583 (+0.8%)

$446,400 + $138,600

$585,000

2015

$1,570 (+0.2%)

$22,755 + $77,851

$100,606

2014

$1,567 (+1.5%)

$21,975 + $75,180

$97,155

2012

$1,544 (+3.2%)

$21,876 + $74,841

$96,717

2011

$1,496 (+1.0%)

$21,448 + $73,374

$94,822

2010

$1,482 (+3.3%)

$21,028 + $71,936

$92,964

2009

$1,435 (+5.1%)

$20,871 + $71,399

$92,270

2008

$1,365

$20,921 + $71,569

$92,490

*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

7,065 Sq. Ft.

Year renovated

1968

Sq. Ft.

2,021

Year built

1968

Style

Single Family Residential

County

Los Angeles County

APN

8706012015

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 7, 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
# of Garage Spaces: 2
# of Parking Spaces: 2

Interior

Bathroom Information
# of Baths (Full): 3

Cooling Information
Central
Has Cooling

Room Information
All Bedrooms Up, Family Room, Formal Entry, Foyer, Living Room, Separate Family Room

Fireplace Information
Family Room
Has Fireplace

Interior Features
Levels: Three Or More

Exterior

Exterior Features
Pool Features: Community Pool

Lot Information
Lot Size Source: Assessor's Data

Property Information
Common Walls: No Common Walls
Parcel Number: 8706012015
Has View
Year Built Source: Assessor

Financial

Assesments Information
Assessments: Unknown

Utilities

Utilities Information
Sewer Connected
Water Source: District/Public

Location

Homeowners Association
Is Part of Association
Association Fee: $265
Association Fee Frequency: Annually

Neighborhood Information
Community Features: Curbs, Street Lighting

School Information
High School District: Pomona Unified

Location Information
Latitude: 34.03620900
Longitude: -117.80059800
Directions: Cross Streets: DIAMOND BAR BLVD.
Road Surface Type: Maintained

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,021
Stories: —
Lot Size: 7,065 square feet
Style: Single Family Residential
Year Built: 1968
Year Renovated: 1968
County: Los Angeles County
APN: 8706012015

Home facts updated by county records on Oct 7, 2026

Other

Listing Information
Days Active in MLS: 68
Continuous Days Active in MLS: 68

Listing Agent Information
List Agent First Name: ROBERT
List Agent Last Name: HARDER

Listing Office Information
List Office Name: RE/MAX INNOVATIONS

Selling Agent Information
Buyer Agent First Name: Minh
Buyer Agent Last Name: Hua-Trinh

Selling Office Information
Buyer Office Name: iHome Investment Inc

Around this home

Schools

Lorbeer Middle School

Public 7-8 • Assigned • 1.4mi

5/10

Diamond Ranch High School

Public 9-12 • Assigned • 1.6mi

8/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

3/10 Fire Factor

0.77% chance of being in a wildfire in next 30 years

6/10 Heat Factor

6 days above 99° expected this year, 17 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 10.1 hours in June and 6.8 hours in December, placing it above the U.S. average for solar exposure.

10.1 hrs

6.8 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$985,000 – $1.19M

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CENTURY 21 PRIMETIME REALTORS

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New listings for sale in 91765

NEW 28 HRS AGO

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6 beds5 baths5,797 sq ft

1809 Diamond Knl, Diamond Bar, CA 91765

$1,480,000

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FOR SALE BY OWNER

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3 beds2 baths1,339 sq ft

512 Armitos Pl, Diamond Bar, CA 91765

COMING SOON

$899,000

3 beds2 baths1,274 sq ft

22922 Dry Crk, Diamond Bar, CA 91765

OPEN SAT, 2PM TO 5PM

$1,499,900

5 beds3 baths3,203 sq ft

24215 Delta Dr, Diamond Bar, CA 91765

$468,000

2 beds2.5 baths1,056 sq ft

22871 Hilton Head Dr #230, Diamond Bar, CA 91765

$1,363,000

4 beds5 baths2,430 sq ft

883 Terrace W, Pomona, CA 91765

$1,050,000

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Home values near 23909 Highland Valley Rd

Data from public records.

Address	Redfin Estimate
23936 Highland Valley Rd, Diamond Bar, CA 3 Beds \| 2 Baths \| 1485 Sq. Ft.	$957,014
23906 Highland Valley Rd, Diamond Bar, CA 4 Beds \| 3 Baths \| 2154 Sq. Ft.	$1,004,322

Address	Redfin Estimate
23924 Highland Valley Rd, Diamond Bar, CA 4 Beds \| 2.5 Baths \| 2204 Sq. Ft.	$1,245,756
23840 Highland Valley Rd, Diamond Bar, CA 4 Beds \| 2 Baths \| 1888 Sq. Ft.	$971,089

Address	Redfin Estimate
23916 Highland Valley Rd, Diamond Bar, CA 4 Beds \| - Baths \| 1888 Sq. Ft.	$1,186,508
23830 Highland Valley Rd, Diamond Bar, CA 3 Beds \| 2 Baths \| 1485 Sq. Ft.	$1,018,013

Property information provided by CRMLS when last listed in 2016. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 91765, CA

Redfin agents who toured

Sale history for 23909 Highland Valley Rd

Tax history for 23909 Highland Valley Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 91765

Home values near 23909 Highland Valley Rd

More real estate resources