23826 Ridge Line Rd, Diamond Bar, CA 91765

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Off Market Dec 2019 for $1.3M

$2,109,991

Est. refi paymentEst. refi $6,465/mo

•

2,476

sq ft

23826 Ridge Line Rd, Diamond Bar, CA 91765

About this home

This gorgeous home is situated in the prestigious 24-hour guard-gated community of “The Country” in the city of Diamond Bar. It features breathtaking panoramic views of mountains, hills and city lights. In a good day, you could see Catalina Island and the boats sailing on the canal. Beautifully upgraded throughout with professional interior design. There are Formal dinning room, break retreat, living room and 4 bedrooms / 4 bathrooms. There are large deck space outside the kitchen and master bedroom. There are a half-size basket court, professional built cabana, a outdoor fireplace and built in BBQ countertop. You can hardly find any other home of this size in the luxury community. The home owner is anxious to consider any reasonable offer!

Single-familyProperty Type

1978Year Built

1.55 acresLot Size

$852Est. Price/Sq.Ft.

3 car garageParking

Listed by Grace Zhang •DRE #01946544 • RE/MAX Galaxy

Listed by Zhongmin Su •DRE #01936028 • RE/MAX Galaxy

Bought with Yanna Yu •DRE #02020894 • RE/MAX Galaxy

Redfin checked: 2 minutes ago

•Source:CRMLS #TR19098099

Redfin Estimate

$2,109,991

$738K since sold in December 2019$35K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 56.1% higher than the average sale price ($1.35M) of 6 comparable homes.

BOUGHT WITH REDFIN JUL 10, 2026
$1,368,000
A
4 beds3 baths2,208 sq ft
1348 Rolling Knoll Rd, Diamond Bar, CA 91765
SOLD JUN 29, 2026
$1,350,000
B
4 beds3 baths2,334 sq ft
1715 Oxbow Ct, Diamond Bar, CA 91765
SOLD JUN 15, 2026
$1,450,350
C
5 beds3 baths2,530 sq ft
1669 Bronze Knl, Diamond Bar, CA 91765
SOLD AUG 7, 2026
$1,088,000
D
4 beds3 baths2,267 sq ft
1179 Chisolm Trl, Diamond Bar, CA 91765
SOLD APR 28, 2026
$1,400,000
E
4 beds3 baths2,688 sq ft
2618 Rocky Trail Rd, Diamond Bar, CA 91765
SOLD MAY 27, 2026
$1,455,000
F
5 beds3 baths2,655 sq ft
1554 Deerfoot, Diamond Bar, CA 91765

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Earn from this home

Sell

$1,044,624

Est. take-home

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Est. cash available

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Rent

$4,080/mo

Redfin rental estimate

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Market trends in 91765, CA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.4%

0.4% MoM

Median sale price

$1.1M

$22K MoM

Avg. days on market

42d

3 days MoM

Recently sold homes

16 MoM

New listings for sale

OPEN SAT, 2PM TO 5PM
$538,000
3 beds2 baths1,047 sq ft
800 Grand Ave Unit D1, Diamond Bar, CA 91765
NEW 21 HRS AGO
$1,070,000
4 beds2.5 baths1,893 sq ft
24126 Silver Spray, Diamond Bar, CA 91765
$818,800
3 beds3 baths1,570 sq ft
22935 Estoril Dr #6, Diamond Bar, CA 91765
3D WALKTHROUGH
$1,150,000
4 beds3 baths1,747 sq ft
1036 Cogburn Ln, Diamond Bar, CA 91765
$1,499,900
4 beds2.5 baths2,344 sq ft
23450 Amberwick Pl, Diamond Bar, CA 91765
RE/MAX 2000 REALTY
OPEN TUE, 5PM TO 7PM
$1,424,998
5 beds3 baths3,203 sq ft
24222 Brookwood Dr, Diamond Bar, CA 91765
Rubio Real Estate
COMING SOON
$1,198,000
4 beds3 baths1,829 sq ft
21116 Silver Cloud, Diamond Bar, CA 91765
$770,000
2 beds2.5 baths1,468 sq ft
22915 Colombard Ln #2, Diamond Bar, CA 91765
$479,000
2 beds2 baths940 sq ft
22857 Hilton Head, Diamond Bar, CA 91765
$1,199,900
4 beds4 baths1,810 sq ft
21325 Hipass Dr, Diamond Bar, CA 91765
See all

Provided by Redfin

Sale history for 23826 Ridge Line Rd

Date

Event

Price

Greater Lansing AoR #TR19098099

Dec 31, 2019

Sold

$1,372,000

$554/sq ft

Dec 31, 2019

Sold

$1,372,000

$554/sq ft

Nov 21, 2019

Contingent

—

Nov 6, 2019

Price Changed

$1,599,000

$646/sq ft

Oct 3, 2019

Price Changed

$1,659,000

$670/sq ft

May 14, 2019

Price Changed

$1,699,000

$686/sq ft

Apr 29, 2019

Listed

$1,599,000

$646/sq ft

Apr 29, 2019

Listed

$1,799,000

$727/sq ft

+24

Public Records

May 16, 2014

Sold

$1,100,000

$444/sq ft

Public Records

May 10, 2013

Sold

$1,100,000

$444/sq ft

CRMLS #K11069064

May 13, 2013

Sold

$1,178,000

$476/sq ft

Feb 26, 2013

Pending

—

Jan 29, 2013

Listing Removed

—

Nov 29, 2012

Price Changed

$1,190,000

$481/sq ft

Nov 29, 2012

Relisted

—

Nov 20, 2012

Listing Removed

—

Sep 10, 2012

Price Changed

$1,290,000

$521/sq ft

Jun 1, 2011

Listed

$1,340,000

$541/sq ft

In" the Country" Guard Gated Community with 24 hrs Security Patrol and association Pool & Spa and tennis court and Club House. Total 2,38 Ac according to assessors record that with Large portion of flat usable lot that Rebuild your dream Mansion or Expand More Sq Ft . While you live in 4 bed room and cozy dining & family room with fire place & Wet Bar, Enjoy 180 degree panoramic city light & canyon and Mountain View

CRMLS #I08085000

Dec 31, 2008

Listing Removed

—

Jun 11, 2008

Listed

$1,390,000

$561/sq ft

CRMLS #H507542

Apr 14, 2006

Sold

$1,075,000

$434/sq ft

Jul 5, 2005

Listed

$1,158,000

$468/sq ft

Public Records

May 28, 1976

Sold

$23,500

$9/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$18,798 (+4.6%)

$1,028,025 + $472,453

$1,500,478

2024

$17,978 (+2.7%)

$1,028,025 + $472,453

$1,500,478

2023

$17,497 (+2.4%)

$1,007,868 + $463,190

$1,471,058

2022

$17,091 (+1.3%)

$988,106 + $454,108

$1,442,214

2021

$16,866 (+1.3%)

$968,732 + $445,204

$1,413,936

2020

$16,653 (+10.7%)

$949,738 + $436,475

$1,386,213

2019

$15,039 (+4.5%)

$940,000 + $432,000

$1,372,000

2018

$14,393 (+4.8%)

$549,457 + $682,727

$1,232,184

2017

$13,729 (+2.9%)

$528,122 + $656,217

$1,184,339

2016

$13,343 (+1.2%)

$528,122 + $656,217

$1,184,339

2015

$13,186 (−0.8%)

$517,767 + $643,350

$1,161,117

2014

$13,296 (+62.1%)

$845,822 + $259,171

$1,104,993

2012

$8,203 (+1.0%)

$625,600 + $156,400

$782,000

2011

$8,124 (−14.3%)

$525,200 + $131,300

$656,500

2010

$9,482 (+0.4%)

$525,200 + $131,300

$656,500

2009

$9,446 (−10.1%)

$620,000 + $155,000

$775,000

2008

$10,506

$620,000 + $155,000

$775,000

Tax history for 23826 Ridge Line Rd

Year

Property tax

Land + Additions

Assessment*

2025

$18,798 (+4.6%)

$1,028,025 + $472,453

$1,500,478

2024

$17,978 (+2.7%)

$1,028,025 + $472,453

$1,500,478

2023

$17,497 (+2.4%)

$1,007,868 + $463,190

$1,471,058

2022

$17,091 (+1.3%)

$988,106 + $454,108

$1,442,214

2021

$16,866 (+1.3%)

$968,732 + $445,204

$1,413,936

2020

$16,653 (+10.7%)

$949,738 + $436,475

$1,386,213

2019

$15,039 (+4.5%)

$940,000 + $432,000

$1,372,000

2018

$14,393 (+4.8%)

$549,457 + $682,727

$1,232,184

2017

$13,729 (+2.9%)

$528,122 + $656,217

$1,184,339

2016

$13,343 (+1.2%)

$528,122 + $656,217

$1,184,339

2015

$13,186 (−0.8%)

$517,767 + $643,350

$1,161,117

2014

$13,296 (+62.1%)

$845,822 + $259,171

$1,104,993

2012

$8,203 (+1.0%)

$625,600 + $156,400

$782,000

2011

$8,124 (−14.3%)

$525,200 + $131,300

$656,500

2010

$9,482 (+0.4%)

$525,200 + $131,300

$656,500

2009

$9,446 (−10.1%)

$620,000 + $155,000

$775,000

2008

$10,506

$620,000 + $155,000

$775,000

*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

1.56 Acres

Year renovated

1978

Sq. Ft.

2,476

Year built

1978

Style

Single Family Residential

County

Los Angeles County

APN

8713032009

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 30, 2026.

Rural Residential District

The RR zoning district identifies hillside areas intended for rural living, including the keeping of animals, with supporting accessory structures. The maximum allowed density for new residential subdivisions within this zoning district will be one dwelling unit per gross acre, or lower densities where required by chapter 22.22 (Hillside Management). The RR zoning district is consistent with the rural 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
# of Parking Spaces: 3

Interior

Laundry Information
Has Laundry
Individual Room

Bathroom Information
# of Baths (Full): 3

Cooling Information
Central, High Efficiency
Has Cooling

Room Information
Family Room, Kitchen, Laundry, Living Room, Main Floor Bedroom

Fireplace Information
Family Room, Living Room
Has Fireplace

Heating Information
Central Furnace
Has Heating

Interior Features
Levels: Multi/Split
Main Level Bathrooms: 2
Main Level Bedrooms: 3

Exterior

Exterior Features
Pool Features: None
Has Sprinklers

Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: Lot 20000-39999 Sqft, Sprinkler System

Property Information
Total # of Units: 1
Common Walls: No Common Walls
Parcel Number: 8713032009
Has View
Year Built Source: Assessor

Utilities

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

Location

Homeowners Association
Is Part of Association
Association Name: DB Country HOA
Association Fee: $220
Association Fee Frequency: Monthly
Association Amenities: Pool, Barbecue, Outdoor Cooking Area, Playground, Tennis, Hiking Trails, Horse Trails, Club House, Sewer, Guard

Neighborhood Information
Community Features: Suburban

School Information
High School District: Walnut Valley Unified

Location Information
Latitude: 33.98910700
Longitude: -117.80492500
Directions: Derringer and Ridgeline
Zoning: LCR140000*

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,476
Stories: —
Lot Size: 1.56 acres
Style: Single Family Residential
Year Built: 1978
Year Renovated: 1978
County: Los Angeles County
APN: 8713032009

Home facts updated by county records on Aug 30, 2026

Other

Listing Information
Days Active in MLS: 206
Continuous Days Active in MLS: 206

Listing Agent Information
List Agent First Name: Grace
List Agent Last Name: Zhang
Co-List Agent First Name: Zhongmin
Co-List Agent Last Name: Su

Listing Office Information
List Office Name: Remax Universal Realty
Co-List Office Name: Remax Universal Realty

Selling Agent Information
Buyer Agent First Name: Yanna
Buyer Agent Last Name: Yu

Selling Office Information
Buyer Office Name: Remax Universal Realty

Around this home

Schools

Evergreen Elementary School

Public K-5 • Assigned • 1.8mi

9/10

Chaparral Middle School

Public 6-8 • Assigned • 0.9mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 2.0mi

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

4 days above 97° expected this year, 11 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 9.7 hours in June and 6.9 hours in December, placing it above the U.S. average for solar exposure.

9.7 hrs

6.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$2.01M – $2.43M

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New listings for sale in 91765

OPEN SAT, 2PM TO 5PM

$538,000

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800 Grand Ave Unit D1, Diamond Bar, CA 91765

NEW 21 HRS AGO

$1,070,000

4 beds2.5 baths1,893 sq ft

24126 Silver Spray, Diamond Bar, CA 91765

$818,800

3 beds3 baths1,570 sq ft

22935 Estoril Dr #6, Diamond Bar, CA 91765

3D WALKTHROUGH

$1,150,000

4 beds3 baths1,747 sq ft

1036 Cogburn Ln, Diamond Bar, CA 91765

$1,499,900

4 beds2.5 baths2,344 sq ft

23450 Amberwick Pl, Diamond Bar, CA 91765

RE/MAX 2000 REALTY

OPEN TUE, 5PM TO 7PM

$1,424,998

5 beds3 baths3,203 sq ft

24222 Brookwood Dr, Diamond Bar, CA 91765

Rubio Real Estate

COMING SOON

$1,198,000

4 beds3 baths1,829 sq ft

21116 Silver Cloud, Diamond Bar, CA 91765

$770,000

2 beds2.5 baths1,468 sq ft

22915 Colombard Ln #2, Diamond Bar, CA 91765

$479,000

2 beds2 baths940 sq ft

22857 Hilton Head, Diamond Bar, CA 91765

Home values near 23826 Ridge Line Rd

Data from public records.

Address	Redfin Estimate
23707 Ridge Line Road, Diamond Bar, CA 6 Beds \| 7 Baths \| 6823 Sq. Ft.	$3,492,912
23807 Ridge Line Road, Diamond Bar, CA 5 Beds \| 5.5 Baths \| 7099 Sq. Ft.	$4,280,689

Address	Redfin Estimate
23719 Ridge Line Road, Diamond Bar, CA 5 Beds \| 4.5 Baths \| 6000 Sq. Ft.	$3,829,133
23819 Ridge Line Road, Diamond Bar, CA 3 Beds \| 3 Baths \| 3040 Sq. Ft.	$2,041,281

Address	Redfin Estimate
23735 Ridge Line Road, Diamond Bar, CA 6 Beds \| 8.5 Baths \| 9840 Sq. Ft.	$6,246,247
23901 Ridge Line Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 2732 Sq. Ft.	$1,746,844

Property information provided by CRMLS when last listed in 2019. This data may not match . Learn more.

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