Los Angeles County  »  21307 Chirping Sparrow Rd

21307 Chirping Sparrow Road, Diamond Bar, CA 91765 - Property report

Also known as: 21307 Chirping Sparrow Rd

Property image for 21307 Chirping Sparrow Road, Diamond Bar, CA 91765
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Property type

Single Family Residence with Therapy Pool (Spa) (0104)

Year built

1980

Acreage

0.252

Sale price

$1,330,000

General Information

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Address
Primary address
21307 Chirping Sparrow Rd
Diamond Bar, CA 91765
Zip code
91765
County
Los Angeles
Municipality
Diamond Bar

Owner

Find out who owns 21307 Chirping Sparrow Road, Diamond Bar, CA 91765. Uncover corporate and individual owners with a free account.

Building
Property type
Single Family Residence with Therapy Pool (Spa)
Building sq. ft.
2,302
Buildings on lot
1
Year built
1980
Last altered
Bedrooms
4
Bathrooms
3
HVAC
Central refrigeration & heating
Pool
Yes
Sales
Sale date
02/06/2026
Sale price
$1,330,000
Arm's length
Tax
Tax year
2026-2027
Property tax
$15,887
Tax per sq. ft.
$7
Zoning & use
Zoning
Low Density Residential (RL)
Units
1
Lot
Acreage
0.252

Area overview

Walk score
3 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
1 /100.  Somewhat Bikeable
School district
Walnut Valley Unified School District
Weed hazard
No
Ownership

Ownership information for 21307 Chirping Sparrow Road, Diamond Bar, CA

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 21307 Chirping Sparrow Road, Diamond Bar, CA 91765

Sale date Sale price Buyer name Seller name
02/06/2026 $1,330,000 XX XXXXXX XXXX XXXXXXX; XX XXXXXXX
09/01/2017 $920,000 XX XXXXXXX XXXXX XXXX
08/01/2014 $780,000 XXXXX XXXXXXXX XXXXXX XXXXX X; XXXXXX XXXXXX X

*Most recent sales on record for this property.

More about Los Angeles County property records.

Title documents

Date Type Amount Party 1 Party 2
07/20/2026 Deed XX, XXXXXX XX, XXXXXX XXXXXXX
02/06/2026 Trust Deed XX XXXXXX XXXX XXXX XXXX
02/06/2026 Grant Deed XXXX XXXXXXX XX XXXXXX
02/06/2026 Interspousal Transfer Grant Deed XXXX XXXXXXX XX XXXXXX
05/26/2022 Reconveyance XXXXX XXXXXXXX XXXXX XXXXXXXXX XXXXXXX XX XXXXXXX
05/26/2022 Substitution Trustee XXXX XXXXXXX XXXX XXXXX XXXXXXXX XXXXX XXXXXXXXX XXXXXXX
09/15/2017 Interspousal Transfer Grant Deed
(File correction - Single parcel sale)		 XX XXXXXXX XXXX XXXXXXX
09/01/2017 Trust Deed XX XXXXXXX XXXX XXXXXXX XXXX
09/01/2017 Grant Deed XXXXX XXXX XX XXXXXXX
09/01/2017 Interspousal Transfer Grant Deed XXXX XXXXXXX XX XXXXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 21307 Chirping Sparrow Road, Diamond Bar, CA

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2026-2027
Base tax
$15,887
Current property tax
$17,014
Tax per sq. ft.
$7
Recent tax assessments
Market value
$1,356,600
Land value
$949,620
Building value
$406,980

More about Los Angeles County property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $1,067,733 1.1711 $12,504 +3.43%
2024-2025 $1,046,798 1.1549 $12,089 +2.57%
2023-2024 $1,026,273 1.1485 $11,787 +2.10%
2022-2023 $1,006,151 1.1474 $11,545 +1.75%
2021-2022 $986,424 1.1502 $11,346 +1.32%
2020-2021 $976,310 1.147016 $11,198 +4.07%
2019-2020 $938,400 1.146694 $10,761 +3.17%
2018-2019 $920,000 1.1337 $10,430 +17.27%
2017-2018 $807,731 1.1011 $8,894 +2.71%
2016-2017 $791,894 1.0935 $8,659 -0.69%

Special assessments & penalties for 21307 Chirping Sparrow Road, Diamond Bar, CA

Code Description Tax levied
00747 Consolidated Fire Protection District Of La County- Measure E
06221 County Sanitation District #21
14651 Diamond Bar District #38
02824 Diamond Bar Lighting District
06181 Greater L.A. County Vector Control District
03694 La County Regional Park And Open Space District
00744 Los Angeles County Fire Department
00746 Los Angeles County Fire Department Brush Initial Inspection
03071 Los Angeles County Flood Control
04000 Los Angeles County Sewer Maintenance
00170 Los Angeles County Trauma/Emerg Srvs
33011 Mwd Water Standby Charge #2
00177 Safe Clean Water Program Funding Measure W
36551 Three Valleys Mwd Standby Charge
37092 Walnut Valley Water Standby
Permits

Permit information for 21307 Chirping Sparrow Road, Diamond Bar, CA

No recently recorded permits for this property.

More about Los Angeles County property records

Neighborhood

Diamond Bar residential market stats

Access a detailed real estate market overview of Diamond Bar so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Diamond Bar and compare it to other neighborhoods in Los Angeles.

Median sale price

$1,012,500

10.3% Y-o-Y

Median price/sq. ft.

$566

0.4% Y-o-Y

Los Angeles county median sale price

$870,000

-0.6% Y-o-Y

Check out recently sold homes in Diamond Bar and see how their prices compare.

Risk

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FEMA flood zones

FEMA flood zones
X
Landslides and liquefaction map

Fire hazard zones

Faults and tsunami inundation zones map
Crime incidents map

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 21307 Chirping Sparrow Road, Diamond Bar, CA 91765 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Montessori School Of Diamond Bar NR Private PK-K 28 0.52
Montessori School Of Diamond Bar NR Private PK-K 28 0.52
Castle Rock Elementary School 7 Public K-5 646 0.67
Evergreen Elementary School 9 Public K-5 719 1.24
Dbc Children's Center NR Private PK-K 48 1.56
Dbc Children's Center NR Private PK-K 48 1.56
Tzu Chi Elementary School - Walnut NR Private K-5 53 2.06
Shelyn Elementary School 7 Public K-6 453 2.29
Maple Hill Elementary School 9 Public K-5 562 2.55
Ybarra Academy For The Arts And Technology 7 Public K-8 596 2.59
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
South Pointe Middle School 8 Public 6-8 879 2.00
Elite Open School NR Private 5-12 43 2.37
Institute Of Knowledge NR Private K-8 127 2.51
International Cross Academy NR Private 1-12 0 2.51
Institute of Knowledge NR Private K-10 265 2.56
Ybarra Academy For The Arts And Technology 7 Public K-8 596 2.59
Wisdom Kids College NR Private K-8 0 2.60
Walnut Valley Adult NR Public 0 2.64
Chaparral Middle School 9 Public 6-8 1,133 2.78
Rowland Adult And Community Education NR Public 0 2.80
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Diamond Bar High School 10 Public 9-12 2,557 1.17
Elite Open School NR Private 5-12 43 2.37
International Cross Academy NR Private 1-12 0 2.51
Institute of Knowledge NR Private K-10 265 2.56
Walnut Valley Adult NR Public 0 2.64
John A. Rowland High School 8 Public 9-12 2,025 2.73
Rowland Adult And Community Education NR Public 0 2.80
Brea-Olinda High School 8 Public 9-12 1,681 2.88
Brea Canyon High (Continuation) School 3 Public 9-12 91 2.93
Ivy League School NR Private K-11 64 2.95

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 21307 Chirping Sparrow Road, Diamond Bar, CA

3522 Cotter Rim Ln, Diamond Bar 3542 Cotter Rim Ln, Diamond Bar 21315 Chirping Sparrow Rd, Diamond Bar 21244 Running Branch Rd, Diamond Bar 21285 Chirping Sparrow Rd, Diamond Bar 21333 Chirping Sparrow Rd, Diamond Bar 21253 Chirping Sparrow Rd, Diamond Bar 3546 Cotter Rim Ln, Diamond Bar 21277 Chirping Sparrow Rd, Diamond Bar 3510 Cotter Rim Ln, Diamond Bar 21252 Running Branch Rd, Diamond Bar 3536 Cotter Rim Ln, Diamond Bar 21236 Running Branch Rd, Diamond Bar 21222 Running Branch Rd, Diamond Bar 21265 Chirping Sparrow Rd, Diamond Bar 21218 Running Branch Rd, Diamond Bar 21327 Chirping Sparrow Rd, Diamond Bar 20965 Running Branch Rd, Diamond Bar 20850 Gold Run Dr, Diamond Bar 21266 Running Branch Rd, Diamond Bar

Nearby ZIP codes for 21307 Chirping Sparrow Road, Diamond Bar, CA

91722, Los Angeles County, CA 91723, Los Angeles County, CA 91724, Los Angeles County, CA 91744, Los Angeles County, CA 91748, Los Angeles County, CA 91768, Los Angeles County, CA 91773, Los Angeles County, CA 92821, Orange County, CA 92823, Orange County, CA 92835, Orange County, CA

Frequently asked questions

What is the year built for 21307 Chirping Sparrow Road, Diamond Bar, CA 91765?

The development at 21307 Chirping Sparrow Road, Diamond Bar, CA 91765 was built in 1980.

What is the total square footage of 21307 Chirping Sparrow Road, Diamond Bar, CA 91765?

21307 Chirping Sparrow Road, Diamond Bar, CA 91765 has a total of 2,302 square feet.

When was 21307 Chirping Sparrow Road, Diamond Bar, CA 91765 last sold and what was the sale price?

21307 Chirping Sparrow Road, Diamond Bar, CA 91765 was last sold on 02/06/2026 for $1,330,000.

What is the assessed value of 21307 Chirping Sparrow Road, Diamond Bar, CA 91765?

21307 Chirping Sparrow Road, Diamond Bar, CA 91765 is currently assessed at $1,067,733.

What are the property taxes for 21307 Chirping Sparrow Road, Diamond Bar, CA 91765?

The property taxes for 21307 Chirping Sparrow Road, Diamond Bar, CA 91765 total $12,504.

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