Los Angeles County property record for 21565 Chirping Sparrow Rd, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,752 sqft · built 1980 |
| Lot Size | 0.212 acres (9,252 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $4,278 (2025) |
| Deeds & Mortgages | Apr 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 8714-021-019 |
| Primary APN | 8714-021-019 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,752 sqft Living Area |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Construction Type | Wood |
| Lot Area | 9,252 sqft (0.212 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 21565 CHIRPING SPARROW RD |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-3759 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR19000* |
| Legal Description | *TR=34161 LOT 33 |
| Legal Subdivision | 34161 |
| Legal Tract | 34161 |
| Legal Block | 2 |
| Legal Lot Number | 33 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 403325 |
21565 Chirping Sparrow Rd is owned by a company that acquired it in April 2023 and is owner-occupied.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 1155 S GRAND AVE, 310, LOS ANGELES, CA 90015-2775 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Apr 10, 2023 |
| Transfer Doc | 0000264310 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Apr 25, 2023 |
| Property Address | 21565 CHIRPING SPARROW RD, DIAMOND BAR, CA 91765-3759 |
| Document Number | 0000264310 |
| Map Reference | MB 909 PG 4-8 |
| Instrument Date | Apr 10, 2023 |
| Instrument | 23-0264310 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 1155 S GRAND AVE APT 310, 310, LOS ANGELES, CA 90015-2775 |
The 2025 property tax bill for 21565 Chirping Sparrow Rd was $4,278 with a homeowner's exemption.
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Diamond Bar City |
| Unified School District | Walnut Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $295,302 (+2%) Land $66,593 Building $228,709 | |
| 2025 | $4,278.00 Homeowner's exemption | $289,513 Land $65,288 Building $224,225 |
| 2023 | $3,774.00 (+2.17%) Homeowner's exemption | $278,272 Land $62,753 Building $215,519 |
| 2022 | $3,694.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 21565 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 risk around 21565 Chirping Sparrow Rd is moderate, ranking above 62% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 62% of the US · lower than 62% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
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 |
| 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.
Source: FCC Broadband Data Collection, based on 565 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Frontier, Verizon.
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