23735 Ridge Line Rd, Diamond Bar, CA 91765

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Off Market Sep 2013 for $4.7M

$6,814,194

Est. refi paymentEst. refi $31,766/mo

•

9,840

sq ft

23735 Ridge Line Rd, Diamond Bar, CA 91765

About this home

VIEW , VIEW, VIEW. 180 degree panoramic views of city lights and canyon-mountain. Gorgeous and luxurious custom estate house SOUTH facing located in "The country ", 24 hours security guard community . Spacious and elegant foyer w/ beautiful crystal chandelier . Exquisite architectural details on both interiors and exteriors w/ elegant French columns & high ceiling. Formal living rm , dinning rm , cozy family rm w/ wet bar and kitchen overlooks beautiful backyard and views. Chef's style gourmet kitchen w/ granite countertops/ center island , and separate wok kitchen. Entertaining movie theater rm . Spacious suites with marbled bathrooms, Master ste w/ a separate sitting area, elegant marbled jacuzzi spa tub, vanity area, sauna, steam shower, and huge walk in closet w/ ample storage space, Professional landscaping, Beautiful backyard is stunning w/ large new style pool, spa, waterfall and built in covered BBQ. Great for entertaining or just relaxing w/ breathtaking views . A must see to appreciate.

Single-familyProperty Type

1998Year Built

2.94 acresLot Size

$692Est. Price/Sq.Ft.

4 car garageParking

Listed by Yan Wang •DRE #01337902 • Century 21 Excellence

Bought with Helen Zhou •DRE #01243027 • Diamond Hills Realty

Redfin checked: 3 minutes ago

•Source:CRMLS #TR13160617

Redfin Estimate

$6,814,194

$2.1M since sold in September 2013$630K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 91.6% higher than the average sale price ($3.56M) of 6 comparable homes.

SOLD JUN 18, 2026
$3,350,000
A
6 beds9 baths7,456 sq ft
2250 Indian Crk, Diamond Bar, CA 91765
SOLD APR 30, 2026
$2,900,000
B
5 beds6 baths6,078 sq ft
23615 Falcons View Dr, Diamond Bar, CA 91765
RE/MAX Galaxy
SOLD AUG 25, 2026
$2,745,000
C
6 beds4.5 baths6,343 sq ft
689 Leyland Dr, Diamond Bar, CA 91765
SOLD NOV 24, 2025
$3,900,000
D
7 beds8.5 baths9,557 sq ft
23624 Falcons View Dr, Diamond Bar, CA 91765
SOLD AUG 12, 2026
$1,440,600
E
4 beds3 baths3,203 sq ft
1135 Summitridge Dr, Diamond Bar, CA 91765
SOLD JUN 5, 2026
$7,000,000
F
5 beds7 baths10,638 sq ft
22588 Pacific Ln, Diamond Bar, CA 91765

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Sell

$3,796,094

Est. take-home

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Est. cash available

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Rent

$5,283/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

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

OPEN SUN, 1:30PM TO 4:30PM
$1,678,000
4 beds3.5 baths3,164 sq ft
20508 Crestline Dr, Diamond Bar, CA 91765
OPEN OCT 3, 1PM TO 4PM
$1,230,000
4 beds3 baths2,148 sq ft
2437 Harmony Hl, Diamond Bar, CA 91765
NEW 27 HRS AGO
$579,000
2 beds2.5 baths1,241 sq ft
23721 Highland Valley Rd, Diamond Bar, CA 91765
OPEN SUN, 1:30PM TO 4:30PM
$769,000
3 beds3 baths1,485 sq ft
23001 Paseo De Terrado, Diamond Bar, CA 91765
COMING SOON
$1,363,000
4 beds5 baths2,430 sq ft
883 Terrace W, Pomona, CA 91765
OPEN SUN, 1PM TO 5PM
$1,149,000
6 beds3 baths1,300 sq ft
2646 Castle Rock Rd, Diamond Bar, CA 91765
$1,888,888
4 beds3 baths3,406 sq ft
23600 Ridge Line, Diamond Bar, CA 91765
$620,000
3 beds3 baths1,420 sq ft
430 Golden Springs Dr Unit B, Diamond Bar, CA 91765
$375,000
2 beds2 baths980 sq ft
318 S Prospectors #44, Diamond Bar, CA 91765
Century 21 Masters
$890,000
4 beds2 baths1,749 sq ft
24217 Afamado Ln, Diamond Bar, CA 91765
See all

Provided by Redfin

Sale history for 23735 Ridge Line Rd

Date

Event

Price

CRMLS #TR13160617

Sep 30, 2013

Sold

$4,700,000

$478/sq ft

Sep 20, 2013

Pending

—

Aug 30, 2013

Pending

—

Aug 26, 2013

Delisted

—

Aug 10, 2013

Listed

$4,980,000

$506/sq ft

CRMLS #H11058185

Sep 22, 2011

Sold

$4,420,000

$449/sq ft

Sep 21, 2011

Price Changed

$5,990,000

$609/sq ft

Sep 5, 2011

Pending

—

May 7, 2011

Listed

$6,990,000

$710/sq ft

Absolutely gorgeous & elegant custom built mansion w/ exquisite architectural details on both interiors & exterior. Breathtaking Panoramic city lights view, Artistic structures, stunning curb appeal w/ circular driveway, professionally landscaped. Marbled entry foyer showcases a grand visual with an appealing double staircase, french columns & beautiful crystal chandelier frm above, formal living rm & gorgeous views, Lovely formal dining rm w/ freplce, gourmet kitchn w/ namebrand blt ins, granite cntertops, center island, access to outdoors, a 2nd wok kitchn. Wide windows, Lrg volumes of incoming sunlight, romantic & calming ambiance, open floor plan, marbled flooring, carpeted rooms, balconies thruout, crown moldings & designer paint. Entertaining movie theater rm (wired for surround sound), Spacious suites with marbled bathrooms, Master ste features a separate sitting area, elegant marbled jacuzzi spa tub, vanity area, sauna, steam shower, and huge walk in closet w/ ample storage space, own balcony, wrap around views of the mountains & city lights. Family rm features a trendy wet bar & blt in entertainment unit. Amazing backyrd: Beautiful landscaping, hardscape, huge pool+spa, waterfall, viewing terraces, built in covered BBQ, views from every angle. MANY MORE AMENITIES TO ENJOY!

CRMLS #A404337

Apr 19, 2005

Sold

$2,398,000

$244/sq ft

Jul 14, 2004

Listed

$2,388,000

$243/sq ft

CRMLS #A400739

Aug 6, 2004

Listing Removed

—

Feb 11, 2004

Listed

$2,588,000

$263/sq ft

Public Records

Oct 13, 1998

Sold

$1,889,000

$192/sq ft

Public Records

Apr 17, 1997

Sold

$305,000

$31/sq ft

Public Records

Dec 22, 1988

Sold

$395,000

$40/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$69,925 (+4.5%)

$2,083,964 + $3,677,587

$5,761,551

2024

$66,929 (+2.6%)

$2,083,964 + $3,677,587

$5,761,551

2023

$65,238 (+2.2%)

$2,043,102 + $3,605,478

$5,648,580

2022

$63,859 (+1.8%)

$2,003,042 + $3,534,783

$5,537,825

2021

$62,707 (+1.3%)

$1,963,767 + $3,465,474

$5,429,241

2020

$61,898 (+2.0%)

$1,925,262 + $3,397,524

$5,322,786

2019

$60,690 (+3.6%)

$1,905,521 + $3,362,687

$5,268,208

2018

$58,561 (+4.9%)

$1,868,158 + $3,296,752

$5,164,910

2017

$55,812 (+2.9%)

$1,795,616 + $3,168,736

$4,964,352

2016

$54,218 (−0.7%)

$1,795,616 + $3,168,736

$4,964,352

2015

$54,584

$1,760,408 + $3,106,604

$4,867,012

2014

$54,625 (+4.6%)

$1,700,000 + $3,000,000

$4,700,000

2012

$52,230 (+107.9%)

$2,947,188 + $1,561,212

$4,508,400

2011

$25,124 (−18.5%)

$2,889,400 + $1,530,600

$4,420,000

2010

$30,815

$1,000,000 + $1,095,000

$2,095,000

2009

$30,798 (+2.5%)

$1,281,475 + $1,308,040

$2,589,515

2008

$30,036

$1,284,520 + $1,311,148

$2,595,668

Tax history for 23735 Ridge Line Rd

Year

Property tax

Land + Additions

Assessment*

2025

$69,925 (+4.5%)

$2,083,964 + $3,677,587

$5,761,551

2024

$66,929 (+2.6%)

$2,083,964 + $3,677,587

$5,761,551

2023

$65,238 (+2.2%)

$2,043,102 + $3,605,478

$5,648,580

2022

$63,859 (+1.8%)

$2,003,042 + $3,534,783

$5,537,825

2021

$62,707 (+1.3%)

$1,963,767 + $3,465,474

$5,429,241

2020

$61,898 (+2.0%)

$1,925,262 + $3,397,524

$5,322,786

2019

$60,690 (+3.6%)

$1,905,521 + $3,362,687

$5,268,208

2018

$58,561 (+4.9%)

$1,868,158 + $3,296,752

$5,164,910

2017

$55,812 (+2.9%)

$1,795,616 + $3,168,736

$4,964,352

2016

$54,218 (−0.7%)

$1,795,616 + $3,168,736

$4,964,352

2015

$54,584

$1,760,408 + $3,106,604

$4,867,012

2014

$54,625 (+4.6%)

$1,700,000 + $3,000,000

$4,700,000

2012

$52,230 (+107.9%)

$2,947,188 + $1,561,212

$4,508,400

2011

$25,124 (−18.5%)

$2,889,400 + $1,530,600

$4,420,000

2010

$30,815

$1,000,000 + $1,095,000

$2,095,000

2009

$30,798 (+2.5%)

$1,281,475 + $1,308,040

$2,589,515

2008

$30,036

$1,284,520 + $1,311,148

$2,595,668

*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

2.94 Acres

Year renovated

1998

Sq. Ft.

9,840

Year built

1998

Style

Single Family Residential

County

Los Angeles County

APN

8713004013

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: 4
# of Parking Spaces: 4

Interior

Laundry Information
Has Laundry
Individual Room

Bathroom Information
# of Baths (Full): 8
# of Baths (1/2): 1

Cooling Information
Central
Has Cooling

Room Information
Home Theatre

Fireplace Information
Den, Dining Room, Family Room
Has Fireplace

Heating Information
Central Furnace
Has Heating

Interior Features
Levels: Two
Window Features: Blinds

Exterior

Exterior Information
Roof: Tile

Exterior Features
Pool Features: Private
Has Pool

Lot Information
Lot Size Source: Assessor's Data
Lot Features: Lawn, Landscaped

Property Information
Total # of Units: 1
Common Walls: No Common Walls
Living Area Source: Assessor's Data
Parcel Number: 8713004013
Has View
Year Built Source: Assessor

Financial

Assesments Information
Assessments: Unknown

Utilities

Utilities Information
Sewer Connected
Water Source: District/Public

Location

Multi-Unit Information
# of Units In Community: 1

Homeowners Association
Is Part of Association
Association Fee: $205
Association Fee Frequency: Monthly

Neighborhood Information
Community Features: Mountainous

School Information
High School District: Walnut Valley Unified

Location Information
Latitude: 33.99063500
Longitude: -117.80599200

Public facts

Beds: 6
Baths: 9.0
Sq. Ft.: 9,840
Stories: —
Lot Size: 2.94 acres
Style: Single Family Residential
Year Built: 1998
Year Renovated: 1998
County: Los Angeles County
APN: 8713004013

Home facts updated by county records on Aug 30, 2026

Other

Listing Information
Days Active in MLS: 39
Continuous Days Active in MLS: 39

Listing Agent Information
List Agent First Name: Yan
List Agent Last Name: Wang

Listing Office Information
List Office Name: Century 21 Excellence

Selling Agent Information
Buyer Agent First Name: Helen
Buyer Agent Last Name: Zhou

Selling Office Information
Buyer Office Name: Diamond Hills Realty

Around this home

Schools

Evergreen Elementary School

Public K-5 • Assigned • 1.8mi

9/10

Chaparral Middle School

Public 6-8 • Assigned • 0.8mi

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

Climate risks

1/10 Flood Factor

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

5/10 Fire Factor

4% chance of being in a wildfire in next 30 years

5/10 Heat Factor

2 days above 97° expected this year, 5 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

$6.47M – $7.84M

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Century 21 Masters

Home values near 23735 Ridge Line Rd

Data from public records.

Address	Redfin Estimate
23605 Ridge Line Rd, Diamond Bar, CA 7 Beds \| 6 Baths \| 5852 Sq. Ft.	$2,973,686
23719 Ridge Line Rd, Diamond Bar, CA 5 Beds \| 4.5 Baths \| 6000 Sq. Ft.	$3,669,886

Address	Redfin Estimate
23621 Ridge Line Rd, Diamond Bar, CA 5 Beds \| - Baths \| 5184 Sq. Ft.	$2,608,754
23807 Ridge Line Rd, Diamond Bar, CA 5 Beds \| 5.5 Baths \| 7099 Sq. Ft.	$4,188,197

Address	Redfin Estimate
23707 Ridge Line Rd, Diamond Bar, CA 6 Beds \| 7 Baths \| 6823 Sq. Ft.	$3,517,896
23819 Ridge Line Rd, Diamond Bar, CA 3 Beds \| 3 Baths \| 3040 Sq. Ft.	$1,965,461

Property information provided by CRMLS when last listed in 2013. This data may not match . Learn more.

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