Los Angeles County property record for 21107 Willow Heights Dr, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4 ba · 3,312 sqft · built 2015 |
| Lot Size | 0.123 acres (5,345 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,295,000 (Jul 2015) |
| Tax Bill | $19,048 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8714-031-048 |
| Primary APN | 8714-031-048 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Building Area | 3,312 sqft Living Area |
| Year Built | Built 2015 |
|---|---|
| Effective Year Built | Effective 2015 |
| Construction Type | Wood |
| Lot Area | 5,345 sqft (0.123 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 21107 WILLOW HEIGHTS DR |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-3794 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR17500-R |
| Legal Description | TR=72295 LOT 44 |
| Legal Tract | 72295 |
| Legal Block | 2 |
| Legal Lot Number | 44 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2017 |
| Census Tract | 403325 |
Source: Los Angeles County records, as of August 25, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 3617 S DOVER CT, ROWLAND HEIGHTS, CA 91748-5112 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 13, 2015 · Amount on Record |
| Deed Sale | Jul 13, 2015 · Amount on Record |
| Deed Document Number | 2015837836 |
| Record Updated | Oct 29, 2026 |
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 | $1,570,262 (+2%) Land $482,986 Building $1,087,276 | |
| 2025 | $19,048.00 (+7.08%) | $1,539,473 (+4.04%) Land $473,516 Building $1,065,957 |
| 2023 | $17,789.00 (+2.11%) | $1,479,695 Land $455,130 Building $1,024,565 |
| 2022 | $17,422.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 48% of the US · lower than 71% of California |
|---|---|
| Wildfire Likelihood | 0.08% annual chance |
| Exposure | Indirect within ember reach |
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.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures