23420 Ridge Line Rd, Diamond Bar, CA 91765

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Off Market Jan 2023 for $1.5M

$1,956,950

Est. refi paymentEst. refi $10,058/mo

•

2,700

sq ft

23420 Ridge Line Rd, Diamond Bar, CA 91765

About this home

* * * SEE PRIVATE REMARKS RE SHOWING. GUARD GATED ENTRY, BEAUTIFUL COUNTRY ESTATES, LAND VALUE WITH LARGER PARCEL, 1.4 ACRES CORNER LOT. THIS Exceptional location and over 1.4 acre, with wide frontage corner location. This amazing one-story home, large spacious area to entertain, with living and informal area double side fireplace. Enter this custom home with beautiful entry foyer, with spacious formal living and dining room, expansive rooms to enjoy or entertain with views of open space and treed canyon vistas. Wood flooring compliments the casual family room with a multi-functional room with pillars, or could be a theatre room, or library for reading. Main bedroom with dressing area, large closet Home was remodeled in 1995. The Country Estates is guard gated, with community pool and equestrian. This parcel is perfect for a possible expansion of the current home, or rebuild to your own specifications. Amazing land value. You will marvel at the spacious grounds and stunning views this special location has to offer. Low HOA dues providing many amenities. Large patio, with room to expand. * * * * Check back for professional photos. Showings by appt only. Must clear guard gate by appt only. Do not approach the home without proper appt, and clearance. Agents see remarks. Bathroom is being repaired and remodeled. Live in the prestigious Country Estates, two guard gated entrances, community amenities. Agents see plot map on title report, amazing land value with 1.4 acres expansive lot, wraps around the corner, offering many options. HIGHLY DESIRED SCHOOLS, Diamond Bar High School, Walnut School District. One of the finest school districts you will fine, rated high nationally. Excellent Elem and Middle School, and Diamond Bar High School.

Single-familyProperty Type

1973Year Built

1.45 acresLot Size

$725Est. Price/Sq.Ft.

3 car garageParking

Listed by Joyce Leonard •DRE #00704394 • Showcase Homes, So Cal

Bought with Chih-Hua Kuo •DRE #02019469 • eXp Realty of California Inc

Redfin checked: a few seconds ago

•Source:CRMLS #PW22104075

Redfin Estimate

$1,956,950

$402K since sold in January 2023$9,000 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 40.3% higher than the average sale price ($1.39M) of 6 comparable homes.

SOLD APR 28, 2026
$1,400,000
A
4 beds3 baths2,688 sq ft
2618 Rocky Trail Rd, Diamond Bar, CA 91765
SOLD JUL 12, 2026
$1,425,800
B
3 beds3 baths2,281 sq ft
23671 Meandering Crk, Diamond Bar, CA 91765
BOUGHT WITH REDFIN JUL 10, 2026
$1,368,000
C
4 beds3 baths2,208 sq ft
1348 Rolling Knoll Rd, Diamond Bar, CA 91765
SOLD JUN 29, 2026
$1,350,000
D
4 beds3 baths2,334 sq ft
1715 Oxbow Ct, Diamond Bar, CA 91765
SOLD JUN 26, 2026
$1,346,000
E
4 beds3 baths2,221 sq ft
1628 Fox Glen Dr, Diamond Bar, CA 91765
SOLD JUN 16, 2026
$1,476,899
F
4 beds3 baths2,579 sq ft
23072 Aspen Knl, Diamond Bar, CA 91765

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Earn from this home

Sell

$689,870

Est. take-home

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Refinance

Est. cash available

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Rent

$4,209/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 23420 Ridge Line Rd

Year

Property tax

Land + Additions

Assessment*

2025

$20,154 (+4.7%)

$1,290,096 + $322,524

$1,612,620

2024

$19,240 (+548.2%)

$1,290,096 + $322,524

$1,612,620

2023

$2,968 (+3.8%)

$1,264,800 + $316,200

$1,581,000

2022

$2,860 (+2.3%)

$52,287 + $125,573

$177,860

2021

$2,797 (+1.1%)

$51,262 + $123,111

$174,373

2020

$2,766 (+1.6%)

$50,257 + $120,698

$170,955

2019

$2,721 (+10.3%)

$49,742 + $119,461

$169,203

2018

$2,466 (+4.0%)

$48,767 + $117,119

$165,886

2017

$2,371 (+4.0%)

$46,874 + $112,572

$159,446

2016

$2,280 (−0.3%)

$46,874 + $112,572

$159,446

2015

$2,288 (−2.3%)

$45,955 + $110,365

$156,320

2014

$2,341 (+1.5%)

$44,379 + $106,579

$150,958

2012

$2,306 (+2.6%)

$44,179 + $106,098

$150,277

2011

$2,247 (+0.9%)

$43,313 + $104,018

$147,331

2010

$2,227 (+1.0%)

$42,464 + $101,979

$144,443

2009

$2,204 (+2.9%)

$42,147 + $101,217

$143,364

2008

$2,142

$42,248 + $101,458

$143,706

Tax history for 23420 Ridge Line Rd

Year

Property tax

Land + Additions

Assessment*

2025

$20,154 (+4.7%)

$1,290,096 + $322,524

$1,612,620

2024

$19,240 (+548.2%)

$1,290,096 + $322,524

$1,612,620

2023

$2,968 (+3.8%)

$1,264,800 + $316,200

$1,581,000

2022

$2,860 (+2.3%)

$52,287 + $125,573

$177,860

2021

$2,797 (+1.1%)

$51,262 + $123,111

$174,373

2020

$2,766 (+1.6%)

$50,257 + $120,698

$170,955

2019

$2,721 (+10.3%)

$49,742 + $119,461

$169,203

2018

$2,466 (+4.0%)

$48,767 + $117,119

$165,886

2017

$2,371 (+4.0%)

$46,874 + $112,572

$159,446

2016

$2,280 (−0.3%)

$46,874 + $112,572

$159,446

2015

$2,288 (−2.3%)

$45,955 + $110,365

$156,320

2014

$2,341 (+1.5%)

$44,379 + $106,579

$150,958

2012

$2,306 (+2.6%)

$44,179 + $106,098

$150,277

2011

$2,247 (+0.9%)

$43,313 + $104,018

$147,331

2010

$2,227 (+1.0%)

$42,464 + $101,979

$144,443

2009

$2,204 (+2.9%)

$42,147 + $101,217

$143,364

2008

$2,142

$42,248 + $101,458

$143,706

*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

63,260

Year renovated

1973

Sq. Ft.

2,700

Year built

1973

Style

Single Family Residential

County

Los Angeles County

APN

8713032022

Parking Spaces

Basement

Accessible

HOA Dues

$270 /month

Garage

Yes

Features

Views, Pool

Last updated by owner on Jul 5, 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
Community, Washer Hookup

Kitchen Information
Appliances: Built In Range, Dishwasher, Gas Range, Gas Water Heater, Water Heater Unit
Has Appliances

Bathroom Information
# of Baths (Full): 3

Cooling Information
Central
Has Cooling

Room Information
Family Room, Laundry, Primary Bedroom, Primary Suite

Fireplace Information
Living Room
Has Fireplace

Heating Information
Central Furnace
Has Heating

Interior Features
Entry Level: 1
Cathedral-Vaulted Ceilings
Levels: One
Main Level Bathrooms: 2
Main Level Bedrooms: 3

Exterior

Exterior Information
Structure Type: House

Exterior Features
Pool Features: Community Pool

Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: Corner Lot, Horse Property, Landscaped, Lawn, Lot Over 40000 Sqft

Property Information
Total # of Units: 1
Common Walls: No Common Walls
Living Area Source: Assessor's Data
Parcel Number: 8713032022
Has View
Year Built Source: Assessor

Financial

Assesments Information
Assessments: Unknown

Utilities

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

Location

Homeowners Association
Is Part of Association
Association Name: The Country
Association Fee: $270
Association Fee Frequency: Monthly
Association Amenities: Pool

Neighborhood Information
Community Features: Horse Trails

School Information
High School District: Walnut Valley Unified

Location Information
Latitude: 33.98981500
Longitude: -117.81099000
Other Subdivision Name: The Country
Directions: Grand Ave or DB Blvd gate
Zoning: LCR140000*

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,700
Stories: —
Parking Spaces: 3
Basement: No
Accessible: No
Lot Size: 1.45 acres
Style: Single Family Residential
Year Built: 1973
Year Renovated: 1973
County: Los Angeles County
APN: 8713032022
HOA Dues: $270/month
Garage: Yes
Features: Views, Pool

Home facts updated by owner on Jul 5, 2026

Other

Listing Information
Days Active in MLS: 129
Continuous Days Active in MLS: 129

Listing Agent Information
List Agent First Name: Joyce
List Agent Last Name: Leonard

Listing Office Information
List Office Name: Showcase Homes, So Cal

Selling Agent Information
Buyer Agent First Name: Chih-Hua
Buyer Agent Last Name: Kuo

Selling Office Information
Buyer Office Name: eXp Realty of California Inc

Around this home

Schools

Evergreen Elementary School

Public K-5 • Assigned • 1.5mi

9/10

Chaparral Middle School

Public 6-8 • Assigned • 0.6mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 1.7mi

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

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

5/10 Heat Factor

3 days above 98° expected this year, 9 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

$1.86M – $2.25M

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Rubio Real Estate

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Home values near 23420 Ridge Line Rd

Data from public records.

Address	Redfin Estimate
23421 Ridge Line Road, Diamond Bar, CA 4 Beds \| 2.5 Baths \| 3366 Sq. Ft.	$1,558,029
23531 Ridge Line Road, Diamond Bar, CA 4 Beds \| 3.5 Baths \| 4000 Sq. Ft.	$2,776,259

Address	Redfin Estimate
23445 Ridge Line Road, Diamond Bar, CA 5 Beds \| 5 Baths \| 4517 Sq. Ft.	$2,048,569
23235 Ridge Line Road, Diamond Bar, CA 4 Beds \| 4 Baths \| 4046 Sq. Ft.	$1,813,640

Address	Redfin Estimate
23521 Ridge Line Road, Diamond Bar, CA 6 Beds \| 4.5 Baths \| 6283 Sq. Ft.	$3,442,622
23303 Ridge Line Road, Diamond Bar, CA 5 Beds \| 4.5 Baths \| 5505 Sq. Ft.	$2,478,384

Property information provided by CRMLS when last listed in 2022. This data may not show owner updates. Learn more.

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