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

Off market may 2012 for $575K

$1,249,483

Est. refi paymentEst. refi $3,525/mo

•

2,325

sq ft

21020 Riego Dr, Diamond Bar, CA 91765

About this home

TURN-KEY STANDARD SALE. WELL MAINTAINED HOME LOCATED IN SOUTH DIAMOND BAR, WALNUT SCHOOL DISTRICT. THIS GORGEOUS HOUSE HAS 4 BEDROOM AND 3 BATH, TOTAL 2325 SQ. FT. LIVING SPACE. AND 7845 SQ. FT. LOT SIZE. GREAT CURB VIEW. LIVING ROOM WITH HIGH CEILING. REMODELED KITCHEN WITH UPGRADED CABINETS, MAN-MADE ZODIAC STONE COUNTERTOPS AND NEWER APPLIANCES. HARDWOOD FLOOR THROUGHOUT MOST PART OF THE HOUSE. ALL THREE BATHROOMS ARE REMODELED AND UPGRADED. ONE BEDROOM AND ONE FULL BATHROOM ARE DOWNSTAIRS. THE MASTER BEDROOM IS SPACIOUS WITH BALCONY. PROFESSIONAL LANDSCAPED FRONT AND BACK YARD WITH JACUZZI AND FIRE PIT. 3 CAR GARAGE. WALKING DISTANCE TO SUPERMARKET (H-MART) AND SCHOOLS (CASTLE ROCK ELEMENTARY AND DIAMOND BAR HIGH). CLOSE TO 57 AND 60 FREEWAY.

Single-familyProperty Type

1980Year Built

7,839 sq ftLot Size

$537Est. Price/Sq.Ft.

3 car garageParking

Listed by Evelyn Chu •DRE #01009927 • Coldwell Banker Envision

Listed by Carol Kawamoto •DRE #1874424 • Coldwell Banker Envision

Bought with Evelyn Chu •DRE #01009927 • Coldwell Banker Envision

Redfin checked: a minute ago

•Source:CRMLS #H12027398

Redfin Estimate

$1,249,483

$674K since sold in May 2012$34K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.3% lower than the average sale price ($1.33M) of 6 comparable homes.

SOLD OCT 30, 2026
$1,341,000
A
4 beds3 baths2,558 sq ft
20920 Running Branch Rd, Diamond Bar, CA 91765
SOLD APR 15, 2026
$1,379,000
B
4 beds3 baths2,697 sq ft
3424 Hawkwood Rd, Diamond Bar, CA 91765
Vimvi California
SOLD MAY 14, 2026
$1,330,000
C
4 beds3 baths2,037 sq ft
3357 Bent Twig, Diamond Bar, CA 91765
SOLD MAR 25, 2026
$1,250,000
D
4 beds3 baths2,380 sq ft
3396 Hawkwood, Diamond Bar, CA 91765
SOLD JUL 27, 2026
$1,315,000
E
4 beds3 baths2,336 sq ft
3595 Hawkwood, Diamond Bar, CA 91765
SOLD APR 17, 2026
$1,388,000
F
5 beds3 baths2,157 sq ft
21030 Riego, Diamond Bar, CA 91765

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

Earn from this home

Sell

$877,712

Est. take-home

List your home with Redfin and save $6,247

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$3,834/mo

Redfin rental estimate

List your home for rent

Market trends in 91765, CA

Last updated September 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-list price

97.8%

0.8% MoM

Median sale price

$1.1M

$12K MoM

Avg. days on market

61d

18 days MoM

Recently sold homes

3 MoM

New listings for sale

OPEN NOV 6, 10AM TO 2PM
$899,000
4 beds3 baths1,760 sq ft
340 Ballena, Diamond Bar, CA 91765
OPEN SAT, 1PM TO 4PM
$1,249,000
5 beds3 baths2,732 sq ft
23836 Minnequa Dr, Diamond Bar, CA 91765
OPEN SAT, 1PM TO 4PM
$1,099,900
4 beds3 baths1,907 sq ft
305 N Prospectors Rd, Diamond Bar, CA 91765
$370,000
1 bed1 bath827 sq ft
356 S Prospectors #83, Diamond Bar, CA 91765
$948,888
3 beds3 baths2,082 sq ft
24127 Willow Crk, Diamond Bar, CA 91765
OPEN SUN, 1PM TO 4PM
$878,000
4 beds2 baths1,540 sq ft
23718 Meadow Fls, Diamond Bar, CA 91765
COMING SOON
$1,450,000
3 beds3.5 baths2,716 sq ft
23843 Gold Rush Dr, Diamond Bar, CA 91765
$849,900
3 beds2 baths1,553 sq ft
22709 Dry Creek Rd, Diamond Bar, CA 91765
$949,888
3 beds2 baths1,535 sq ft
1936 Ano Nuevo, Diamond Bar, CA 91765
OPEN SUN, 1PM TO 4PM
$750,000
4 beds3 baths1,619 sq ft
2119 Dublin Ln #2, Diamond Bar, CA 91765
See all

Provided by Redfin

Sale history for 21020 Riego Dr

Date

Event

Price

CRMLS #H12027398

May 25, 2012

Sold

$575,000

$247/sq ft

May 11, 2012

Pending

—

May 11, 2012

Pending

—

Apr 20, 2012

Pending

—

Mar 2, 2012

Listed

$612,000

$263/sq ft

CRMLS #H11058082

Aug 7, 2011

Listing Removed

—

May 10, 2011

Price Changed

$669,999

$288/sq ft

May 7, 2011

Listed

$669,000

$288/sq ft

CRMLS #H10080715

Nov 28, 2010

Listing Removed

—

Oct 4, 2010

Price Changed

$675,000

$290/sq ft

Jul 29, 2010

Listed

$699,999

$301/sq ft

CRMLS #H10047236

May 16, 2010

Listing Removed

—

May 3, 2010

Listed

$725,000

$312/sq ft

Public Records

Feb 23, 1989

Sold

$300,000

$129/sq ft

Public Records

Nov 14, 1980

Sold

$150,000

$65/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$9,269 (+5.4%)

$384,347 + $352,316

$736,663

2024

$8,796 (+2.4%)

$376,811 + $345,408

$722,219

2023

$8,586 (+2.1%)

$369,423 + $338,636

$708,059

2022

$8,406 (+1.9%)

$362,180 + $331,997

$694,177

2021

$8,246 (+1.3%)

$355,079 + $325,488

$680,567

2020

$8,141 (+2.0%)

$348,117 + $319,106

$667,223

2019

$7,985 (+4.1%)

$344,548 + $315,834

$660,382

2018

$7,667 (+4.8%)

$337,793 + $309,642

$647,435

2017

$7,316 (+3.1%)

$324,677 + $297,619

$622,296

2016

$7,096 (−0.6%)

$324,677 + $297,619

$622,296

2015

$7,138

$318,311 + $291,784

$610,095

2014

$7,144 (+24.5%)

$307,389 + $281,773

$589,162

2012

$5,739 (+3.0%)

$306,000 + $280,500

$586,500

2011

$5,573 (+0.8%)

$179,274 + $281,026

$460,300

2010

$5,530 (+0.3%)

$175,759 + $275,516

$451,275

2009

$5,511 (+2.8%)

$174,446 + $273,457

$447,903

2008

$5,362

$174,861 + $274,107

$448,968

Tax history for 21020 Riego Dr

Year

Property tax

Land + Additions

Assessment*

2025

$9,269 (+5.4%)

$384,347 + $352,316

$736,663

2024

$8,796 (+2.4%)

$376,811 + $345,408

$722,219

2023

$8,586 (+2.1%)

$369,423 + $338,636

$708,059

2022

$8,406 (+1.9%)

$362,180 + $331,997

$694,177

2021

$8,246 (+1.3%)

$355,079 + $325,488

$680,567

2020

$8,141 (+2.0%)

$348,117 + $319,106

$667,223

2019

$7,985 (+4.1%)

$344,548 + $315,834

$660,382

2018

$7,667 (+4.8%)

$337,793 + $309,642

$647,435

2017

$7,316 (+3.1%)

$324,677 + $297,619

$622,296

2016

$7,096 (−0.6%)

$324,677 + $297,619

$622,296

2015

$7,138

$318,311 + $291,784

$610,095

2014

$7,144 (+24.5%)

$307,389 + $281,773

$589,162

2012

$5,739 (+3.0%)

$306,000 + $280,500

$586,500

2011

$5,573 (+0.8%)

$179,274 + $281,026

$460,300

2010

$5,530 (+0.3%)

$175,759 + $275,516

$451,275

2009

$5,511 (+2.8%)

$174,446 + $273,457

$447,903

2008

$5,362

$174,861 + $274,107

$448,968

*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

7,836 Sq. Ft.

Year renovated

1980

Sq. Ft.

2,325

Year built

1980

Style

Single Family Residential

County

Los Angeles County

APN

8765013019

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

Property details

Parking

Parking / Garage Information
Attached Garage
# of Garage Spaces: 3

Interior

Laundry Information
Has Laundry
Inside

Kitchen Information
Appliances: Dishwasher, Garbage Disposal, Microwave, Range, Stove
Has Appliances
Area, Breakfast Nook

Bathroom Information
# of Baths (Full): 3

Cooling Information
Central
Has Cooling

Room Information
Entry, Living Room, Primary Suite, Walk-In Closet

Fireplace Information
Living Room
Has Fireplace

Flooring Information
Tile, Wood

Heating Information
Forced Air
Has Heating

Interior Features
Levels: Two
Spa Features: In Ground
Has Spa

Exterior

Exterior Information
Roof: Tile
Fencing: Blockwall
Has Fence
Construction Materials: Stucco

Exterior Features
Pool Features: None
Has Sprinklers

Lot Information
Lot Size Source: Assessor's Data
Lot Features: Cul-De-Sac, Sprinklers In Front, Sprinklers In Rear, Sprinklers On Side

Property Information
Living Area Source: Assessor's Data
Parcel Number: 8765013019
Property Condition: Turnkey
Year Built Source: Assessor

Utilities

Utilities Information
Water Source: District/Public

Location

School Information
High School District: Walnut Valley Unified

Location Information
Latitude: 33.97336200
Longitude: -117.84690900

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,325
Stories: —
Lot Size: 7,836 square feet
Style: Single Family Residential
Year Built: 1980
Year Renovated: 1980
County: Los Angeles County
APN: 8765013019

Home facts updated by county records on Oct 7, 2026

Other

Miscellaneous Information
Exclusions: MASTER BEDROOM CURTAINS AND RODS.

Listing Information
Days Active in MLS: 51
Continuous Days Active in MLS: 93

Listing Agent Information
List Agent First Name: Evelyn
List Agent Last Name: Chu
Co-List Agent First Name: Carol
Co-List Agent Last Name: Kawamoto

Listing Office Information
List Office Name: Tarbell Realtors, Chino
Co-List Office Name: Tarbell Realtors, Chino

Selling Agent Information
Buyer Agent First Name: Evelyn
Buyer Agent Last Name: Chu

Selling Office Information
Buyer Office Name: Tarbell Realtors, Chino

Around this home

Schools

Castle Rock Elementary School

Public K-5 • Assigned • 0.2mi

10/10

South Pointe Middle School

Public 6-8 • Assigned • 1.3mi

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 Diamond Bar market is shifting, creating new opportunities for both buyers and sellers. Buyers have a bit more negotiating room, while well-priced, well-maintained homes can still attract strong interest. If you’re considering a move, I’d be...
9 hours ago • Diamond Bar
Sang Ur
Redfin Premier agent
123 deals
Was this helpful?

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

6/10 Heat Factor

7 days above 98° expected this year, 21 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 9.5 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

$1.19M – $1.44M

Reach more buyers when you sell with Redfin. Save up to $12,495 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

$949,888

3 beds2 baths1,535 sq ft

1936 Ano Nuevo, Diamond Bar, CA 91765

Corner lot • Living room • Cozy fireplace

$1,298,800

5 beds4 baths2,446 sq ft

20122 Evening Breeze, Walnut, CA 91789

Three unit property • Detached guest house • Income potential

$998,000

4 beds2 baths1,288 sq ft

21624 Birch Hl, Diamond Bar, CA 91765

Single story home • Prime location • Large lot

KELLER WILLIAMS PREMIER PROPER

$939,880

3 beds2 baths1,304 sq ft

1761 Pepperdale Dr, Rowland Heights, CA 91748

Single-story home • Cul-de-sac location • Mountain views

OPEN NOV 14, 12PM TO 3PM

$995,000

4 beds2 baths1,521 sq ft

3525 Castle Rock, Diamond Bar, CA 91765

Quiet neighborhood • Flooring upgrades • Kitchen upgrades

$1,150,000

4 beds2 baths1,521 sq ft

3528 Castle Rock Rd, Diamond Bar, CA 91765

Corner lot • Private backyard • 7,054 sq ft lot

RE/MAX Galaxy

New listings for sale in 91765

OPEN NOV 6, 10AM TO 2PM

$899,000

4 beds3 baths1,760 sq ft

340 Ballena, Diamond Bar, CA 91765

Full house remodel • Updated bathrooms • Wood flooring

OPEN SAT, 1PM TO 4PM3D WALKTHROUGH

$1,249,000

5 beds3 baths2,732 sq ft

23836 Minnequa Dr, Diamond Bar, CA 91765

New kitchen • New flooring • New hvac

OPEN SAT, 1PM TO 4PM

$1,099,900

4 beds3 baths1,907 sq ft

305 N Prospectors Rd, Diamond Bar, CA 91765

Decorative fireplace • High ceilings • Recessed lighting

$370,000

1 bed1 bath827 sq ft

356 S Prospectors #83, Diamond Bar, CA 91765

Gated community • Tennis court • Swimming pool

$948,888

3 beds3 baths2,082 sq ft

24127 Willow Crk, Diamond Bar, CA 91765

0.24 acre lot • 2 garage spots • Pool

OPEN SUN, 1PM TO 4PMVIDEO TOUR

$878,000

4 beds2 baths1,540 sq ft

23718 Meadow Fls, Diamond Bar, CA 91765

Recessed lighting • Upgraded bathrooms • Full copper plumbing

COMING SOON

$1,450,000

3 beds3.5 baths2,716 sq ft

23843 Gold Rush Dr, Diamond Bar, CA 91765

Remodeled kitchen • Infinity edge pool • Attached spa

$849,900

3 beds2 baths1,553 sq ft

22709 Dry Creek Rd, Diamond Bar, CA 91765

Living area • Open kitchen • Breakfast bar

$949,888

3 beds2 baths1,535 sq ft

1936 Ano Nuevo, Diamond Bar, CA 91765

Corner lot • Living room • Cozy fireplace

Home values near 21020 Riego Dr

Data from public records.

Address	Redfin Estimate
21035 Riego Drive, Diamond Bar, CA 4 Beds \| 3 Baths \| 1949 Sq. Ft.	$1,101,674
21050 Riego Drive, Diamond Bar, CA 4 Beds \| 2 Baths \| 1892 Sq. Ft.	$840,549

Address	Redfin Estimate
21045 Riego Drive, Diamond Bar, CA 4 Beds \| - Baths \| 1947 Sq. Ft.	$1,087,504
21040 Riego Drive, Diamond Bar, CA 4 Beds \| 3 Baths \| 2325 Sq. Ft.	$1,108,246

Address	Redfin Estimate
21055 Riego Drive, Diamond Bar, CA 4 Beds \| 3 Baths \| 2325 Sq. Ft.	$988,221
21030 Riego Drive, Diamond Bar, CA 5 Beds \| 3 Baths \| 2157 Sq. Ft.	$1,496,683

Property information provided by CRMLS when last listed in 2012. 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	Sacramento, 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 91765, CA

Sale history for 21020 Riego Dr

Tax history for 21020 Riego Dr

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 91765

Home values near 21020 Riego Dr

More real estate resources