Los Angeles County property record for 321 Willapa Ln, Diamond Bar, CA 91765 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 5 ba · 2,474 sqft · built 1965 |
| Lot Size | 0.188 acres (8,188 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $580,000 (Dec 2016) |
| Tax Bill | $9,719 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8703-015-025 |
| Primary APN | 8703-015-025 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 5 Baths |
| Total Rooms | 12 Rooms |
| Stories | 2 Stories |
| Building Area | 2,474 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1965 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Wood Shingle |
| Lot Area | 8,188 sqft (0.188 acres) |
| Lot Dimensions | 119 ft deep x 68 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 321 WILLAPA LN |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-1355 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT NO 27531 LOT 8 |
| Legal Subdivision | 27531 |
| Legal Tract | 27531 |
| Legal Block | 3 |
| Legal Lot Number | 8 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 403316 |
Source: Los Angeles County records · APN 8703-015-025
Assessment roll updated May 21, 2026 · Last verified June 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 20839 QUAIL RUN DR, WALNUT, CA 91789-4033 |
| Owner Type | Company |
| Vesting | Life Tenant |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Dec 20, 2016 · Amount on Record |
| Deed Sale | Dec 20, 2016 · Amount on Record |
| Deed Document Number | 20161616160 |
| Prior Transfer Date | Nov 18, 2016 |
| Prior Transfer Doc | 0001616159 |
| Record Updated | Sep 20, 2026 |
Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Diamond Bar City |
| Unified School District | Pomona Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $9,719.00 (+11.07%) | $701,913 (+4.04%) Land $519,125 Building $182,788 |
| 2023 | $8,750.00 (+1.54%) | $674,659 Land $498,968 Building $175,691 |
| 2022 | $8,617.00 |
Source: FEMA National Flood Hazard Layer, Los Angeles County (06037C), updated September 30, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
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