Listed by Hiljin Sabangan •DRE #02107086 • Deluxe Realty

Contact: 408-476-5498

For sale

$1,188,888

Est. $8,142/mo —

•

1,888

sq ft

23930 Sapphire Cyn, Diamond Bar, CA 91765

About this home

Welcome to 23930 Sapphire Canyon in the highly sought-after city of Diamond Bar — a beautifully updated home designed for comfort, functionality, and modern Southern California living. Featuring an open-concept floor plan filled with natural light, this spacious residence offers the perfect blend of style and versatility for everyday living and entertaining alike. At the heart of the home, a stunning central skylight floods the interior with warm Southern California sunshine, creating a bright and inviting atmosphere throughout the main living spaces. The thoughtfully designed layout flows seamlessly from the living and dining areas into the upgraded kitchen, making the home feel both open and connected. This exceptional property features 2 spacious master suites, ideal for multi-generational living, guests, or added privacy, along with 4 full bathrooms offering convenience and flexibility for any lifestyle. Step outside to enjoy the large backyard — perfect for entertaining, relaxing, gardening, or creating your dream outdoor retreat. Located in a desirable neighborhood near top-rated schools, shopping, dining, and freeway access, this move-in ready Diamond Bar home is a rare opportunity you won’t want to miss.

Single-familyProperty Type

1968Year Built

0.25 acresLot Size

$630Price/Sq.Ft.

$25/moHOA Dues

2 car garageParking

Listing updated: Oct 10, 2026 at 03:13pm

Redfin checked: 2 minutes ago

•Source:CRMLS #CV26113099

Redfin agents who toured

This home features great curb appeal and is located in a quiet cul-de-sac. It boasts an open floor plan with plenty of windows that provide natural light. The layout includes two spacious master suites, recessed lighting, and a skylight in the...
5 months ago
Ramonita Colon
Redfin Associate agent
3,762 tours

Payment calculator

$8,142 per month

Principal and interest$6,650

Property taxes

HOA dues

Home insurance

Utilities

5 minutes to get started. No credit impact.

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Open houses

No upcoming open houses.

Nearby open houses (10)

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3 beds2.5 baths1,657 sq ft
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5 beds3 baths2,289 sq ft
16559 Ember Glen Rd, Hacienda Heights, CA 91745
OPEN SAT, 12PM TO 2PM
$1,150,000
4 beds3.5 baths2,817 sq ft
1336 N Laurel Ave, Upland, CA 91786
OPEN SAT, 12PM TO 3PM
$765,000
4 beds2 baths1,486 sq ft
1260 Grove Ave, Upland, CA 91786
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OPEN SAT, 12PM TO 3PM
$669,000
2 beds2 baths1,710 sq ft
136 N Vermont, Glendora, CA 91741
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1277 Carbon Cyn, Chino Hills, CA 91709
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$525,000
2 beds2.5 baths1,243 sq ft
13104 Glen Ct #20, Chino Hills, CA 91709
REDFIN OPEN SAT, 2:30PM TO 4:30PM3D WALKTHROUGH
$550,000
2 beds2 baths912 sq ft
2627 S Quarry Ln Unit D, Walnut, CA 91789
REDFIN OPEN SUN, 11AM TO 2PMVIDEO TOUR
$1,425,000
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Around this home

Schools

K - 12
Preschool & daycare

Lorbeer Middle School

Public 7-8 • Assigned • 1.2mi

5/10

Diamond Ranch High School

Public 9-12 • Assigned • 1.5mi

8/10

Provided by GreatSchools

About Phillips

Ranch

Phillips Ranch, located between Diamond Bar and Chino Hills, is a hillside and master-planned Pomona neighborhood with curving cul-de-sacs and greenbelt trails. The neighborhood’s character concentrates around the Rio Rancho Rd and Village Loop Rd area, where small plazas, coffee counters, and everyday services meet the steady rhythm of commuter traffic. Stucco homes with tile roofs and tidy front yards line winding streets that follow the terrain. The green spine of Phillips Ranch Park and nearby trail links shapes an outdoors-forward routine. Cal Poly Pomona’s cultural calendar and galleries add a campus-adjacent creative note. The 57 and 71 corridors frame the edges, keeping the setting connected while the interior stays residential.

Provided by Walk Score and Local Logic

Offer insights

23930 Sapphire Cyn · $1,188,888

Strong offer

$1.19M and above

75% chance or better to win

Why $1.19M+ is a strong offer

DAYS ON MARKET

The average home goes pending in 46 days.

SALE-TO-LIST

Most homes are selling 0% below list price.

About offer insights

Property details

Interior
Exterior
Finance

Kitchen

Bathroom

Bedroom

Living

Dining

Interior features
Quartz counters
High ceilings (9 feet+)
Pantry
Storage space
In-law floorplan
Front door entry
One-level living
Has view

Bedrooms
Four bedrooms, all on the main level
Two primary bedrooms

Bathrooms
Four full bathrooms, all on the main level

Kitchen
Garbage disposal
Built-in range
Range/stove hood
Dishwasher

Laundry & utility
Laundry area in the garage
Has laundry

Heating & cooling
Central furnace heating
Central cooling

Sale and tax history for 23930 Sapphire Cyn

Sale History
Tax History

Date

Event

Price

CRMLS #CV26113099

Aug 22, 2026

Price Changed

$1,188,888

$630/sq ft

Jul 29, 2026

Relisted

—

Jul 27, 2026

Relisted

—

Jun 24, 2026

Contingent

—

May 26, 2026

Price Changed

$1,159,999

$614/sq ft

May 25, 2026

Listed

$1,599,999

$847/sq ft

CRMLS #OC23193244

Nov 30, 2023

Sold

$940,000

$498/sq ft

Nov 9, 2023

Pending

—

Nov 1, 2023

Price Changed

$935,000

$495/sq ft

Oct 24, 2023

Price Changed

$955,000

$506/sq ft

Oct 16, 2023

Listed

$995,000

$527/sq ft

HUGE PRICE REDUCTION Welcome to the newly renovated elegant home located at the desirable city of Diamond Bar. It is rare opportunity to find a LUXURIOUS home features 4 bedrooms and 4 bathrooms on an almost 11000 sqft lot. Total living area on tax record is 1888 sqft. Each room has a private bathroom. NEW WIRE, NEW ELECTRICAL 200AP PANNEL, NEW SEWER. NEW CENTRAL A/C!! WHOLE HOUSE HAS BEEN FULLY UPGRADED. The floor pan are approved and permitted by city building department. Soaring ceiling covers entrance and the living areas. The fireplaces let you be enjoyed on chilly evening. Single story including a giant master bedroom with walking closet. The open floor plan extends from entrance to the kitchen to the great room. Large formal living room is perfect for everyday family life which you can enjoy. Garage has been upgrade. It can be used as an entertainment room as well. Tranquil backyard provides exceptional potential.

CRMLS #OC23119025

Oct 6, 2023

Listing Removed

—

Sep 13, 2023

Price Changed

$985,000

$522/sq ft

Sep 5, 2023

Price Changed

$1,025,000

$543/sq ft

Aug 17, 2023

Price Changed

$1,050,000

$556/sq ft

Aug 14, 2023

Price Changed

$1,055,000

$559/sq ft

Jul 25, 2023

Price Changed

$1,058,000

$560/sq ft

Jul 4, 2023

Listed

$1,088,000

$576/sq ft

Public Records

Jan 18, 2023

Sold

$633,000

$335/sq ft

CRMLS #CV22229510

Dec 29, 2022

Sold

$620,000

$328/sq ft

Dec 8, 2022

Pending

—

Dec 6, 2022

Relisted

—

Nov 28, 2022

Pending

—

Nov 10, 2022

Contingent

—

Oct 27, 2022

Listed

$750,000

$397/sq ft

CRMLS #C504578

Jun 27, 2005

Sold

$560,000

$297/sq ft

Mar 24, 2005

Listed

$570,000

$302/sq ft

Public Records

Oct 19, 1988

Sold

$212,000

$112/sq ft

Public Records

Apr 29, 1983

Sold

$105,500

$56/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$13,332 (+13.3%)

$774,093 + $244,777

$1,018,870

2024

$11,766 (+46.3%)

$758,916 + $239,978

$998,894

2023

$8,039 (−14.1%)

$723,900 + $216,100

$940,000

2022

$9,355 (+13.7%)

$520,000 + $100,000

$620,000

2021

$8,229 (−0.6%)

$472,859 + $262,694

$735,553

2020

$8,280 (−4.3%)

$414,000 + $230,000

$644,000

2019

$8,651 (+5.9%)

$414,000 + $230,000

$644,000

2018

$8,166 (+13.0%)

$414,000 + $230,000

$644,000

2017

$7,226 (+2.8%)

$363,000 + $202,000

$565,000

2016

$7,031 (+4.0%)

$363,000 + $202,000

$565,000

2015

$6,758 (+7.2%)

$363,000 + $202,000

$565,000

2014

$6,303 (+12.9%)

$317,000 + $177,000

$494,000

2012

$5,584 (−4.9%)

$293,000 + $163,000

$456,000

2011

$5,870 (−0.1%)

$273,800 + $152,000

$425,800

2010

$5,877 (+12.1%)

$292,800 + $162,600

$455,400

2009

$5,240 (−26.5%)

$292,800 + $162,600

$455,400

2008

$7,134

$267,000 + $148,300

$415,300

Public record

Public record
Zoning

Beds

Baths

Stories

—

Lot width

—

Lot depth

—

Lot size

0.25 Acres

Year renovated

1968

Finished Sq. Ft.

1,888

Unfinished Sq. Ft.

—

Total Sq. Ft.

1,888

Year built

1968

Style

Single Family Residential

County

Los Angeles County

APN

8706004027

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

Climate risks

1/10 Flood Factor

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

4/10 Fire Factor

0.93% 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

63/ 100

Moderate sunlight

Sunscore

There appears to be some shading by surrounding buildings, terrain, and vegetation.

5.9 hrs

4.3 hrs

JuneDecember

Provided by Shadowmap

Redfin Estimate for 23930 Sapphire Cyn

$1,189,951

$1,063 over list price of $1.19M

Nearby comparable homes

The Redfin Estimate uses 6 recent nearby sales, priced between $870K to $1.2M.

SOLD JUL 24, 2026
$1,233,000 Last sold price
4 beds2 baths2,075 sq ft
23923 Minnequa Dr, Diamond Bar, CA 91765
$36/sq ft
2 years older
SOLD SEP 4, 2026
$870,000 Last sold price
4 beds2 baths1,994 sq ft
1160 N Del Sol, Diamond Bar, CA 91765
$194/sq ft
smaller lot
SOLD MAY 4, 2026
$1,025,000 Last sold price
4 beds2 baths2,002 sq ft
1241 Flintlock Rd, Diamond Bar, CA 91765
Exp Realty of California Inc
$118/sq ft
smaller lot
1 year newer
SOLD MAY 18, 2026
$1,220,000 Last sold price
4 beds3 baths3,044 sq ft
23675 Bower Cascade, Diamond Bar, CA 91765
$229/sq ft
3 years older
SOLD FEB 18, 2026
$990,000 Last sold price
4 beds2.5 baths1,891 sq ft
423 Canoe Cv, Diamond Bar, CA 91765
ReMax 2000 Realty
$106/sq ft
smaller lot
4 years older
SOLD MAY 22, 2026
$1,170,500 Last sold price
4 beds3 baths2,261 sq ft
23831 Strange Crk, Diamond Bar, CA 91765
$112/sq ft
smaller lot

Rental earnings

Est. $3,497 per month, based on comparable rentals

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K.W. EXECUTIVE

New listings for sale in 91765

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Details provided by CRMLS and may not match the public record. Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin agents who toured

Payment calculator

Affordability tools

See this home in person

Nearby open houses (10)

Around this home

Schools

Offer insights

Property details

Sale and tax history for 23930 Sapphire Cyn

Public record

Climate risks

Historical weather

Sun exposure

Redfin Estimate for 23930 Sapphire Cyn

Early Access listings

Nearby similar homes

New listings for sale in 91765

More real estate resources