Los Angeles County property record for 307 Willapa Ln, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,840 sqft · built 1965 |
| Lot Size | 0.315 acres (13,729 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $605,000 (Jun 2014) |
| Tax Bill | $10,131 (2025) |
| Deeds & Mortgages | Oct 2017 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 8703-015-028 |
| Primary APN | 8703-015-028 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,840 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1965 |
|---|---|
| Effective Year Built | Effective 1969 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Wood Shingle |
| Lot Area | 13,729 sqft (0.315 acres) |
| Lot Dimensions | 170 ft deep x 81 ft wide |
| Heating System | Central |
|---|
| Street Address | 307 WILLAPA LN |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-1355 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR108 |
| Legal Description | TRACT NO 27531 LOT 11 |
| Legal Subdivision | 27531 |
| Legal Tract | 27531 |
| Legal Block | 3 |
| Legal Lot Number | 11 |
| 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, 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 Company Names on Record |
|---|---|
| Mailing Address | 307 WILLAPA LN, DIAMOND BAR, CA 91765-1355 |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 13, 2014 · Amount on Record |
| Deed Sale | Jun 13, 2014 · Amount on Record |
| Prior Sale | Oct 20, 2011 · Amount on Record |
| Deed Document Number | 2014616820 |
| Last Transfer Date | Jun 26, 2017 |
| Transfer Doc | 0001193834 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Oct 18, 2017 |
| Property Address | 307 WILLAPA LN, DIAMOND BAR, CA 91765-1355 |
| Document Number | 0001193834 |
| Instrument Date | Jun 26, 2017 |
| Instrument | 1193834 |
| Transaction Type | Transfer |
| Record Updated | Oct 30, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 307 WILLAPA LN DIAMOND BAR CA 917651355, DIAMOND BAR, CA 91765-1355 |
| Investor | Possibly a Property Investor |
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 | Pomona Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $756,467 (+2%) Land $556,538 Building $199,929 | |
| 2025 | $10,131.00 (+10.73%) | $741,635 (+4.04%) Land $545,626 Building $196,009 |
| 2023 | $9,149.00 (+1.54%) | $712,839 Land $524,440 Building $188,399 |
| 2022 | $9,010.00 |
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 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 1 (1980) |
| Most Recent Claim | Feb 1980 · rainfall accumulation |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 414 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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