Sold on May 2026
$1,680,000
4
bd
3 ba
2,697
sq ft

21535 Chirping Sparrow, Diamond Bar, CA 91765

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About this home

Single-familyProperty Type
1980Year Built
10,008 sq ftLot Size
$623Price/Sq.Ft.
3 car garageParking
Listed by Simon Dong DRE #01959497 168 Realty Inc.
Bought with Ying Chou DRE #01949599 K.W. EXECUTIVE
Redfin checked: 2 minutes ago
Source:CRMLS #TR26051137

Redfin Estimate

$1,798,858
$119K since sold in May 2026$29K since July

This home's estimate is 33.1% higher than the average sale price ($1.35M) of 6 comparable homes.

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Market trends in 91765, CA

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Sale and tax history for 21535 Chirping Sparrow

Public record

Beds
4
Baths
3
Stories
Lot width
Lot depth
Lot size
10,008 Sq. Ft.
Year renovated
1980
Sq. Ft.
2,697
Year built
1980
Style
Single Family Residential
County
Los Angeles County
APN
8714021022
Parking Spaces
Basement
Accessible
HOA Dues
Garage
Features
Last updated by owner on Jul 9, 2026.

Property details

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 • 1.2mi

10/10
Provided by GreatSchools

Local insights from Redfin agents

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

6 days above 98° expected this year, 16 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)
68
50
71
52
73
53
72
53
76
57
81
60
83
61
89
65
86
64
80
59
71
52
69
51
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Sun exposure

74/ 100

Good sunlight

Sunscore

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

8 hrs
4.5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.71M – $2.07M

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Property information provided by CRMLS when last listed in 2026. This data may not match public records. Learn more.
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GreatSchools Ratings provided by GreatSchools.org.