Google street view image for 21333 Chirping Sparrow Rd, Diamond Bar, CA 91765

Off Market Oct 1993 for $256K

$1,228,906

Est. refi paymentEst. refi $1,835/mo

•

2 ba

•

2,037

sq ft

21333 Chirping Sparrow Rd, Diamond Bar, CA 91765

About this home

21333 Chirping Sparrow Rd is a 2,037 square foot house on a 0.27 acre lot with 4 bedrooms and 2 bathrooms. - it last sold on October 06, 1993 for $256,000. Based on Redfin's Diamond Bar data, we estimate the home's value is $1,228,906.

Single-familyProperty Type

1980Year Built

0.27 acresLot Size

$603Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,228,906

$973K since sold in October 1993$1,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 12.5% lower than the average sale price ($1.40M) of 6 comparable homes.

SOLD MAY 14, 2026
$1,330,000
A
4 beds3 baths2,037 sq ft
3357 Bent Twig, Diamond Bar, CA 91765
SOLD FEB 6, 2026
$1,330,000
B
4 beds3 baths2,302 sq ft
21307 Chirping Sparrow Rd, Diamond Bar, CA 91765
SOLD JUL 27, 2026
$1,315,000
C
4 beds3 baths2,336 sq ft
3595 Hawkwood, Diamond Bar, CA 91765
SOLD JAN 16, 2026
$1,518,888
D
4 beds2.5 baths2,397 sq ft
21187 Ambushers, Diamond Bar, CA 91765
SOLD MAY 12, 2026
$1,680,000
E
4 beds3 baths2,697 sq ft
21535 Chirping Sparrow, Diamond Bar, CA 91765
SOLD MAR 25, 2026
$1,250,000
F
4 beds3 baths2,380 sq ft
3396 Hawkwood, Diamond Bar, CA 91765

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Sell

$1,161,249

Est. take-home

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Est. cash available

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Rent

$3,346/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

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
$1,070,000
4 beds2.5 baths1,893 sq ft
24126 Silver Spray, 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 TODAY, 5PM TO 7PM
$1,424,998
5 beds3 baths3,203 sq ft
24222 Brookwood Dr, Diamond Bar, CA 91765
Rubio Real Estate
$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
OPEN SAT, 2:30PM TO 5:30PM
$1,450,000
4 beds3 baths2,933 sq ft
780 Leyland Dr, Diamond Bar, CA 91765
$1,399,999
5 beds3 baths3,073 sq ft
21380 Chirping Sparrow Rd, Diamond Bar, CA 91765
See all

Provided by Redfin

Sale history for 21333 Chirping Sparrow Rd

Year

Property tax

Land + Additions

Assessment*

2025

$6,067 (+7.3%)

$212,107 + $222,981

$435,088

2024

$5,655 (+4.2%)

$212,107 + $222,981

$435,088

2023

$5,426 (+2.1%)

$207,949 + $218,609

$426,558

2022

$5,312 (+2.0%)

$203,872 + $214,323

$418,195

2021

$5,207 (+1.3%)

$199,875 + $210,121

$409,996

2020

$5,142 (+1.9%)

$195,956 + $206,001

$401,957

2019

$5,045 (+4.9%)

$193,947 + $203,889

$397,836

2018

$4,808 (+4.7%)

$190,145 + $199,892

$390,037

2017

$4,593 (+3.2%)

$182,762 + $192,131

$374,893

2016

$4,449 (−0.5%)

$182,762 + $192,131

$374,893

2015

$4,473 (−0.2%)

$179,179 + $188,364

$367,543

2014

$4,481 (+1.2%)

$173,031 + $181,901

$354,932

2012

$4,427 (+3.0%)

$172,249 + $181,079

$353,328

2011

$4,300 (+0.8%)

$168,872 + $177,529

$346,401

2010

$4,265 (+0.4%)

$165,561 + $174,049

$339,610

2009

$4,246 (+2.8%)

$164,324 + $172,749

$337,073

2008

$4,128

$164,715 + $173,160

$337,875

Tax history for 21333 Chirping Sparrow Rd

Year

Property tax

Land + Additions

Assessment*

2025

$6,067 (+7.3%)

$212,107 + $222,981

$435,088

2024

$5,655 (+4.2%)

$212,107 + $222,981

$435,088

2023

$5,426 (+2.1%)

$207,949 + $218,609

$426,558

2022

$5,312 (+2.0%)

$203,872 + $214,323

$418,195

2021

$5,207 (+1.3%)

$199,875 + $210,121

$409,996

2020

$5,142 (+1.9%)

$195,956 + $206,001

$401,957

2019

$5,045 (+4.9%)

$193,947 + $203,889

$397,836

2018

$4,808 (+4.7%)

$190,145 + $199,892

$390,037

2017

$4,593 (+3.2%)

$182,762 + $192,131

$374,893

2016

$4,449 (−0.5%)

$182,762 + $192,131

$374,893

2015

$4,473 (−0.2%)

$179,179 + $188,364

$367,543

2014

$4,481 (+1.2%)

$173,031 + $181,901

$354,932

2012

$4,427 (+3.0%)

$172,249 + $181,079

$353,328

2011

$4,300 (+0.8%)

$168,872 + $177,529

$346,401

2010

$4,265 (+0.4%)

$165,561 + $174,049

$339,610

2009

$4,246 (+2.8%)

$164,324 + $172,749

$337,073

2008

$4,128

$164,715 + $173,160

$337,875

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Zoning

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

Interior

Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central

Exterior

Property Information
Subdivision Name: 34161
Living Sq. Ft: 2,037
# of Units: 1
Legal Description: TR=34161 LOT 50

Lot Information
# of Buildings: 1
Land Sq. Ft: 11,593
Legal Lot Number: 50
Municipality Name: DIAMOND BAR
Acres: 0.2661
Zoning Code: LCR19000*
County Use Description: SINGLE FAMILY RESID

Utility Information
Sewer Type: Public
Water Service Type: Public

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 2,037
Stories: —
Lot Size: 0.27 acres
Style: Single Family Residential
Year Built: 1980
Year Renovated: 1980
County: Los Angeles County
APN: 8714020006

Home facts updated by county records on Aug 30, 2026

Around this home

Schools

Castle Rock Elementary School

Public K-5 • Assigned • 0.6mi

10/10

South Pointe Middle School

Public 6-8 • Assigned • 2.0mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 1.3mi

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

6% 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 • 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

$1.17M – $1.41M

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Home values near 21333 Chirping Sparrow Rd

Data from public records.

Address	Redfin Estimate
21327 Chirping Sparrow Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 2697 Sq. Ft.	$1,667,747
21285 Chirping Sparrow Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 3645 Sq. Ft.	$1,451,234

Address	Redfin Estimate
21315 Chirping Sparrow Road, Diamond Bar, CA 3 Beds \| 3 Baths \| 2380 Sq. Ft.	$1,238,853
21277 Chirping Sparrow Road, Diamond Bar, CA 3 Beds \| 3 Baths \| 2798 Sq. Ft.	$1,492,274

Address	Redfin Estimate
21307 Chirping Sparrow Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 2302 Sq. Ft.	$1,506,778
21415 Chirping Sparrow Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 2697 Sq. Ft.	$1,376,232

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