21090 Chirping Sparrow Rd, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 21090 Chirping Sparrow Rd, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,264 sqft · built 1983
Lot Size	0.209 acres (9,087 sqft)
Owner	2 Individual Names on File
Last Sale	$1,081,000 (May 2021)
Tax Bill	$14,767 (2025)
Deeds & Mortgages	May 2021 Sale & Mortgage Feb 2018 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`8714-019-005`

Property Details

APN / Parcel Number

Primary APN	`8714-019-005`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	13 Rooms
Stories	2 Stories
Building Area	2,264 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1983
Effective Year Built	Effective 1983
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Tile
Lot Area	9,087 sqft (0.209 acres)
Lot Dimensions	139 ft deep x 67 ft wide

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	21090 CHIRPING SPARROW RD
City	DIAMOND BAR
State	CA
Zip	91765-3766
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR19000*
Legal Description	*TR=29053 LOT 68
Legal Subdivision	29053
Legal Tract	29053
Legal Block	2
Legal Lot Number	68
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	2
Census Block	2011
Census Tract	403325

Owner

21090 Chirping Sparrow Rd is owned and occupied by two individuals who bought it in May 2021.

Source: Los Angeles County records, as of October 20, 2026

Owner of Record	2 Individual Names on File
Mailing Address	21090 CHIRPING SPARROW RD, DIAMOND BAR, CA 91765-3766
Occupancy	Owner Occupied
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
May 13, 2021	Grant Deed, Transfer · Conventional Mortgage PREFERRED BANK
Feb 13, 2018	Deed of Trust, Mortgage · Line of Credit THIRD FSLA OF CLEVELAND

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 13, 2021 · Amount on File
Deed Sale	May 13, 2021 · Amount on File
Prior Sale	Oct 29, 2003 · Amount on File
Deed Document Number	2021772646
Prior Transfer Date	Jun 17, 1994
Prior Transfer Doc	0001268915
Record Updated	Oct 29, 2026

May 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	May 13, 2021
Property Address	21090 CHIRPING SPARROW RD, DIAMOND BAR, CA 91765-3766
Document Number	0000772646
Map Reference	MB 909 PG 9-13
Instrument Date	Mar 26, 2021
Instrument	21-0772646
Transaction Type	Transfer
Record Updated	May 24, 2021
Title Company	CLEARMARK TITLE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	3336 1 2 JACKSON AVENUE, ROSEMEAD, CA 91770

Mortgage

Document Number	0000772647
Date	May 13, 2021
Instrument	21-0772647

Lender

Name	PREFERRED BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2051

Interest

Rate Type	Adjustable Rate
Rate	4.5%
Type Change Date	Jun 1, 2024
Change Frequency	Annually
Min Rate At Change	3%
Max Rate At Change	6.5%
Index	1-Year LIBOR
Max Rate	10.5%

February 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	21090 CHIRPING SPARROW RD, DIAMOND BAR, CA 91765-3766
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	AMERICAN TITLE INC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000149370
Date	Feb 13, 2018
Instrument	18-0149370

Lender

Name	THIRD FSLA OF CLEVELAND
Type	Lending Institution
Address	CLEVELAND, OH 44105

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	360 Months
Due	Feb 1, 2048

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

Tax Assessment & Valuation

The 2025 property tax bill for 21090 Chirping Sparrow Rd was $14,767.

Source: Los Angeles County assessment roll, as of August 25, 2026

Property Jurisdictions

Type	Name
State	California
County	Los Angeles County
Municipality	Diamond Bar City
Unified School District	Walnut Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,193,507 (+2%) Land $716,546 Building $476,961
2025	$14,767.00	$1,170,106 Land $702,497 Building $467,609
2023	$13,595.00 (+2.12%)	$1,124,671 Land $675,219 Building $449,452
2022	$13,313.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 21090 Chirping Sparrow Rd in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 30, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Wildfire risk around 21090 Chirping Sparrow Rd is high, ranking above 78% of the US, with a 0.4% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	High above 78% of the US · above 55% of California
Wildfire Likelihood	0.4% annual chance
Exposure	Direct burnable vegetation

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	WALNUT VALLEY WATER DISTRICT serves 100,941 people · EPA ID CA1910234
Water Source	Purchased surface water from several systems
Last State Inspection	Jun 2023
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 21 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 35
T-Mobile Fixed Wireless	100 / 20

May also be available: Verizon.

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