Los Angeles County property record for 667 Alder Ln, Diamond Bar, CA 91789
| Property Type | Planned Unit Development |
|---|---|
| Details | 2 bd · 3 ba · 1,368 sqft · built 1986 |
| Lot Size | 0.033 acres (1,431 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $3,887 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8719-018-062 |
| Primary APN | 8719-018-062 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 1,368 sqft Living Area |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1986 |
| Construction Type | Wood |
| Lot Area | 1,431 sqft (0.033 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 667 ALDER LN |
|---|---|
| City | WALNUT |
| State | CA |
| Zip | 91789-3347 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Planned Unit Development |
| Local Zoning Code | LCR312UDP* |
| Legal Description | TR=39833 LOT 62 |
| Legal Subdivision | 39833 |
| Legal Tract | 39833 |
| Legal Block | 3 |
| Legal Lot Number | 62 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 403328 |
667 Alder Ln, a planned unit development, is owned and occupied by two individuals who acquired it in December 2010.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 667 ALDER LN, WALNUT, CA 91789-3347 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | Dec 30, 2010 |
| Transfer Doc | 0001943931 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 667 Alder Ln was $3,887 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 | $290,834 (+2%) Land $103,192 Building $187,642 | |
| 2025 | $3,887.00 Homeowner's exemption | $285,132 Land $101,169 Building $183,963 |
| 2023 | $3,572.00 (+2.23%) Homeowner's exemption | $274,062 Land $97,242 Building $176,820 |
| 2022 | $3,494.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 667 Alder Ln 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 667 Alder Ln is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 96% of the US · lower than 97.4% of California |
|---|---|
| Wildfire Likelihood | 0.02% 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 200 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable | 1,000 / 1,000 |
May also be available: GeoLinks, T-Mobile, Verizon.
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