Los Angeles County property record for 21380 Chirping Sparrow Rd, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 3,073 sqft · built 1980 |
| Lot Size | 0.373 acres (16,259 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $1,350,000 (Jul 2023) |
| Tax Bill | $17,335 (2025) |
| Deeds & Mortgages | Jul 2023 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 8714-022-004 |
| Primary APN | 8714-022-004 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 3,073 sqft Living Area |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1982 |
| Construction Type | Wood |
| Lot Area | 16,259 sqft (0.373 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 21380 CHIRPING SPARROW RD |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-3701 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR19000* |
| Legal Description | *TR=34161 LOT 67 |
| Legal Subdivision | 34161 |
| Legal Tract | 34161 |
| Legal Block | 2 |
| Legal Lot Number | 67 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 403325 |
21380 Chirping Sparrow Rd is held in a trust since January 2025.
Source: Los Angeles County records, as of August 26, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 6750 E LEAFWOOD DR, ANAHEIM, CA 92807-5028 |
| Owner Type | Company |
| Vesting | Trust |
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 Sale | Jul 5, 2023 · Amount on File |
| Deed Sale | Jul 5, 2023 · Amount on File |
| Prior Sale | Dec 18, 2009 · Amount on File |
| Deed Document Number | 2023435275 |
| Last Transfer Date | Jan 24, 2025 |
| Transfer Doc | 0000111207 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Jul 5, 2023 |
| Property Address | 21380 CHIRPING SPARROW RD, DIAMOND BAR, CA 91765-3701 |
| Document Number | 0000435275 |
| Map Reference | MB 909 PG 4-8 |
| Instrument Date | Jun 22, 2023 |
| Instrument | 23-0435275 |
| Transaction Type | Transfer |
| Record Updated | Jul 14, 2023 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 6750 E LEAFWOOD DR, ANAHEIM, CA 92807-5028 |
The 2025 property tax bill for 21380 Chirping Sparrow Rd was $17,335.
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 | $1,404,539 (+2%) Land $855,312 Building $549,227 | |
| 2025 | $17,335.00 | $1,377,000 Land $838,542 Building $538,458 |
| 2023 | $11,373.00 (+2.55%) | $915,623 (+2%) Land $412,030 Building $503,593 |
| 2022 | $11,090.00 | $897,670 Land $403,951 Building $493,719 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 21380 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 21380 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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