20850 Starshine Rd, Diamond Bar, CA 91789

Local rules require you to be signed in to see more photos.

Off Market Jun 2015 for $798K

$1,309,315

Est. refi paymentEst. refi $2,962/mo

•

2,100

sq ft

20850 Starshine Rd, Diamond Bar, CA 91789

About this home

Beautiful home in the desirable peaceful hills area. Belong and walk to evergreen elementary, S. pointe middle school and diamond bar high school. Ronald Regan park and Starshine Park steps away. Very neat and cozy condition with open floor plan. 4 large bedrooms and 3 bathrooms with 1 bedroom and 1 bathroom downstairs. upgraded flooring, kitchen cabinets, counter tops and recess lightning. Custom window covering. balcony to view the mountains. Red tile roof. 3 car attached garage. Cross street of Starshine Park. Convenient location to 57 and 60 fwy and most quietest area in S. Diamond Bar.

Single-familyProperty Type

1983Year Built

8,179 sq ftLot Size

$623Est. Price/Sq.Ft.

3 car garageParking

Listed by Cathy Cheng •DRE #01270713 • ReMax 2000 Realty

Bought with Julie Hwang •DRE #01303658 • New Star Realty & Inv.

Redfin checked: 2 minutes ago

•Source:CRMLS #TR15084240

Redfin Estimate

$1,309,315

$511K since sold in June 2015$5,000 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 0.8% higher than the average sale price ($1.30M) of 6 comparable homes.

SOLD MAY 13, 2026
$1,250,000
A
4 beds3 baths2,150 sq ft
20899 Starshine, Diamond Bar, CA 91789
SOLD MAY 27, 2026
$1,350,000
B
5 beds3 baths2,186 sq ft
21009 Quail Run, Diamond Bar, CA 91789
SOLD APR 1, 2026
$1,390,000
C
4 beds3 baths2,781 sq ft
20885 Starshine, Diamond Bar, CA 91789
SOLD JUL 28, 2026
$1,319,000
D
4 beds2.5 baths2,432 sq ft
1321 Glenthorpe, Diamond Bar, CA 91789
Real Broker
SOLD MAR 27, 2026
$1,330,000
E
5 beds3 baths2,186 sq ft
20939 Quail Run, Diamond Bar, CA 91789
SOLD AUG 6, 2026
$1,155,000
F
4 beds3 baths1,886 sq ft
20105 Prosa Ct, Walnut, CA 91789

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$756,304

Est. take-home

List your home with Redfin and save $6,547

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$4,215/mo

Redfin rental estimate

List your home for rent

Market trends in 91789, CA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.2%

+0.0% MoM

Median sale price

$1.2M

$23K MoM

Avg. days on market

33d

13 days MoM

Recently sold homes

1 MoM

New listings for sale

OPEN SUN, 2PM TO 4PM
$1,760,000
4 beds3 baths2,646 sq ft
625 N Pacer Ct, Walnut, CA 91789
NEW 6 HRS AGO
$1,950,000
4 beds3 baths2,575 sq ft
20739 E Walnut Cyn, Walnut, CA 91789
OPEN TODAY, 12PM TO 5PM
$1,298,880
4 beds2.5 baths2,074 sq ft
1310 Heidelberg Ave, Walnut, CA 91789
OPEN SUN, 1PM TO 5PM
20031 Wildbloom Cir, Walnut, CA 91789
$1,899,000
4 beds3 baths2,575 sq ft
20031 Wildbloom Cir, Walnut, CA 91789
$1,768,800
4 beds3 baths2,477 sq ft
880 Gartel, Walnut, CA 91789
OPEN TODAY, 11AM TO 3PM
$1,260,000
4 beds3 baths2,028 sq ft
1123 Bain Ave, Diamond Bar, CA 91789
OPEN TODAY, 1PM TO 5PM
$1,480,000
4 beds3 baths2,479 sq ft
357 Windemere, Walnut, CA 91789
$950,000
5 beds4 baths1,918 sq ft
20316 Flintgate, Diamond Bar, CA 91789
OPEN SUN, 2:30PM TO 5:30PM
$1,350,000
5 beds4 baths2,446 sq ft
20122 Evening Breeze, Walnut, CA 91789
$1,129,000
4 beds2.5 baths1,752 sq ft
19200 Kamlyn Ln, Walnut, CA 91789
See all

Provided by Redfin

Sale history for 20850 Starshine Rd

Year

Property tax

Land + Additions

Assessment*

2025

$12,049 (+4.6%)

$507,295 + $451,770

$959,065

2024

$11,519 (+2.5%)

$507,295 + $451,770

$959,065

2023

$11,241 (+2.1%)

$497,349 + $442,912

$940,261

2022

$11,008 (+1.9%)

$487,598 + $434,228

$921,826

2021

$10,807 (+1.3%)

$478,038 + $425,714

$903,752

2020

$10,669 (+2.0%)

$468,665 + $417,367

$886,032

2019

$10,463 (+3.7%)

$463,860 + $413,088

$876,948

2018

$10,085 (+4.8%)

$454,765 + $404,989

$859,754

2017

$9,619 (+2.9%)

$437,107 + $389,264

$826,371

2016

$9,345 (+113.5%)

$437,107 + $389,264

$826,371

2015

$4,377 (−0.2%)

$428,537 + $381,632

$810,169

2014

$4,384 (+1.2%)

$135,068 + $213,353

$348,421

2012

$4,330 (+3.0%)

$134,458 + $212,389

$346,847

2011

$4,205 (+0.8%)

$131,822 + $208,225

$340,047

2010

$4,171 (+0.5%)

$129,238 + $204,143

$333,381

2009

$4,152 (+2.9%)

$128,273 + $202,618

$330,891

2008

$4,036

$128,578 + $203,100

$331,678

Tax history for 20850 Starshine Rd

Year

Property tax

Land + Additions

Assessment*

2025

$12,049 (+4.6%)

$507,295 + $451,770

$959,065

2024

$11,519 (+2.5%)

$507,295 + $451,770

$959,065

2023

$11,241 (+2.1%)

$497,349 + $442,912

$940,261

2022

$11,008 (+1.9%)

$487,598 + $434,228

$921,826

2021

$10,807 (+1.3%)

$478,038 + $425,714

$903,752

2020

$10,669 (+2.0%)

$468,665 + $417,367

$886,032

2019

$10,463 (+3.7%)

$463,860 + $413,088

$876,948

2018

$10,085 (+4.8%)

$454,765 + $404,989

$859,754

2017

$9,619 (+2.9%)

$437,107 + $389,264

$826,371

2016

$9,345 (+113.5%)

$437,107 + $389,264

$826,371

2015

$4,377 (−0.2%)

$428,537 + $381,632

$810,169

2014

$4,384 (+1.2%)

$135,068 + $213,353

$348,421

2012

$4,330 (+3.0%)

$134,458 + $212,389

$346,847

2011

$4,205 (+0.8%)

$131,822 + $208,225

$340,047

2010

$4,171 (+0.5%)

$129,238 + $204,143

$333,381

2009

$4,152 (+2.9%)

$128,273 + $202,618

$330,891

2008

$4,036

$128,578 + $203,100

$331,678

*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

8,181 Sq. Ft.

Year renovated

1983

Sq. Ft.

1,970

Year built

1983

Style

Single Family Residential

County

Los Angeles County

APN

8765003020

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 9, 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
Attached Garage
# of Garage Spaces: 3
# of Parking Spaces: 3

Interior

Bathroom Information
# of Baths (Full): 3

Cooling Information
Central
Has Cooling

Room Information
Bonus Room, Family Room, Formal Entry, Living Room

Fireplace Information
Family Room, Living Room
Has Fireplace

Heating Information
Forced Air
Has Heating

Interior Features
Levels: Two

Exterior

Exterior Features
Pool Features: None

Lot Information
Lot Size Source: Assessor's Data

Property Information
Total # of Units: 1
Common Walls: No Common Walls
Living Area Source: Seller
Parcel Number: 8765003020
Total # of Stories: 2
Has View
Year Built Source: Assessor

Utilities

Utilities Information
Sewer Available
Water Source: District/Public

Location

Multi-Unit Information
# of Units In Community: 1

Homeowners Association
Is Part of Association
Association Fee: $65
Association Fee Frequency: Monthly

Neighborhood Information
Community Features: Curbs

School Information
High School District: Walnut Valley Unified

Location Information
Latitude: 33.98607600
Longitude: -117.84978400
Road Surface Type: Maintained

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 1,970
Stories: —
Lot Size: 8,181 square feet
Style: Single Family Residential
Year Built: 1983
Year Renovated: 1983
County: Los Angeles County
APN: 8765003020

Home facts updated by county records on Jul 9, 2026

Other

Listing Information
Days Active in MLS: 59
Continuous Days Active in MLS: 63

Listing Agent Information
List Agent First Name: Cathy
List Agent Last Name: Cheng

Listing Office Information
List Office Name: ReMax 2000 Realty

Selling Agent Information
Buyer Agent First Name: Julie
Buyer Agent Last Name: Hwang

Selling Office Information
Buyer Office Name: New Star Realty & Inv.

Around this home

Schools

Evergreen Elementary School

Public K-5 • Assigned • 1.0mi

9/10

Chaparral Middle School

Public 6-8 • Assigned • 1.9mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 0.7mi

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
Was this helpful?

Climate risks

1/10 Flood Factor

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

4/10 Fire Factor

3% chance of being in a wildfire in next 30 years

5/10 Heat Factor

5 days above 98° expected this year, 14 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 • 91789

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 9.5 hours in June and 6.9 hours in December, placing it above the U.S. average for solar exposure.

9.5 hrs

6.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.24M – $1.51M

Reach more buyers when you sell with Redfin. Save up to $13,093 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

$6,500,000

11 beds12 baths17,241 sq ft

22588 Ridge Line Rd, Diamond Bar, CA 91765

ReMax 2000 Realty

OPEN TODAY, 1PM TO 3PM

$990,000

3 beds2 baths1,304 sq ft

1761 Pepperdale Dr, Rowland Heights, CA 91748

$1,489,000

4 beds3 baths2,986 sq ft

2611 Rudy, Rowland Heights, CA 91748

$1,150,000

4 beds3 baths2,144 sq ft

20211 Lake Cyn, Walnut, CA 91789

OPEN TODAY, 2PM TO 4:30PM

$1,368,800

4 beds3 baths2,265 sq ft

20505 Missionary Ridge St, Walnut, CA 91789

3D & VIDEO TOUR

$3,980,000

8 beds8.5 baths8,264 sq ft

2820 Shadow Canyon Dr, Diamond Bar, CA 91765

New listings for sale in 91789

OPEN SUN, 2PM TO 4PM

$1,760,000

4 beds3 baths2,646 sq ft

625 N Pacer Ct, Walnut, CA 91789

NEW 6 HRS AGO

$1,950,000

4 beds3 baths2,575 sq ft

20739 E Walnut Cyn, Walnut, CA 91789

OPEN TODAY, 12PM TO 5PM

$1,298,880

4 beds2.5 baths2,074 sq ft

1310 Heidelberg Ave, Walnut, CA 91789

OPEN SUN, 1PM TO 5PM

$1,899,000

4 beds3 baths2,575 sq ft

20031 Wildbloom Cir, Walnut, CA 91789

$1,768,800

4 beds3 baths2,477 sq ft

880 Gartel, Walnut, CA 91789

OPEN TODAY, 11AM TO 3PM

$1,260,000

4 beds3 baths2,028 sq ft

1123 Bain Ave, Diamond Bar, CA 91789

OPEN TODAY, 1PM TO 5PM

$1,480,000

4 beds3 baths2,479 sq ft

357 Windemere, Walnut, CA 91789

$950,000

5 beds4 baths1,918 sq ft

20316 Flintgate, Diamond Bar, CA 91789

OPEN SUN, 2:30PM TO 5:30PM

$1,350,000

5 beds4 baths2,446 sq ft

20122 Evening Breeze, Walnut, CA 91789

Home values near 20850 Starshine Rd

Data from public records.

Address	Redfin Estimate
20826 Starshine Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 2781 Sq. Ft.	$1,432,563
20844 Starshine Road, Diamond Bar, CA 4 Beds \| - Baths \| 2243 Sq. Ft.	$1,329,168

Address	Redfin Estimate
20832 Starshine Road, Diamond Bar, CA 3 Beds \| 3 Baths \| 2243 Sq. Ft.	$1,441,482
20854 Starshine Road, Diamond Bar, CA 5 Beds \| - Baths \| 3000 Sq. Ft.	$1,435,037

Address	Redfin Estimate
20838 Starshine Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 1970 Sq. Ft.	$1,140,601
20858 Starshine Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 1970 Sq. Ft.	$1,264,383

Property information provided by CRMLS when last listed in 2015. This data may not match . Learn more.

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

91709 homes for sale
91765 homes for sale
91789 homes for sale
91766 homes for sale
91768 homes for sale

Houses for rent in Diamond Bar	Agents near me	Irvine, CA homes for sale	Diamond Bar Housing Market
Houses for sale near me	San Diego, CA homes for sale	Fremont, CA homes for sale
Land for sale near me	San Francisco, CA homes for sale	Pasadena, CA homes for sale
Open Houses near me	Los Angeles, CA homes for sale	Diamond Bar Property Records
Condos for sale near me	San Jose, CA homes for sale	CA New Listings

Irvine homes for sale
Pasadena homes for sale
Long Beach homes for sale

About this home

Redfin Estimate

Earn from this home

Market trends in 91789, CA

Sale history for 20850 Starshine Rd

Tax history for 20850 Starshine Rd

Public record

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 91789

Home values near 20850 Starshine Rd

More real estate resources