Los Angeles County property record for 1409 Copper Mountain Dr, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,033 sqft · built 1978 |
| Lot Size | 0.144 acres (6,252 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $660,000 (May 2013) |
| Tax Bill | $10,320 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8702-014-040 |
| Primary APN | 8702-014-040 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,033 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1978 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 6,252 sqft (0.144 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 1409 COPPER MOUNTAIN DR |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-2612 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR18000* |
| Legal Description | *TR=25096 LOT 200 |
| Legal Subdivision | 25096 |
| Legal Tract | 25096 |
| Legal Block | 3 |
| Legal Lot Number | 200 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 3 |
| Census Block | 3012 |
| Census Tract | 403324 |
1409 Copper Mountain Dr is owned and occupied by two individuals who bought it in May 2013.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1409 COPPER MOUNTAIN DR, DIAMOND BAR, CA 91765-2612 |
| 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 Sale | May 29, 2013 · Amount on File |
| Deed Sale | May 29, 2013 · Amount on File |
| Deed Document Number | 2013797117 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 1409 Copper Mountain Dr was $10,320 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 | $828,984 (+2%) Land $459,207 Building $369,777 | |
| 2025 | $10,320.00 Homeowner's exemption | $812,730 Land $450,203 Building $362,527 |
| 2023 | $9,610.00 (+2.13%) Homeowner's exemption | $781,172 Land $432,722 Building $348,450 |
| 2022 | $9,410.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1409 Copper Mountain Dr in Zone X, an area of minimal flood risk.
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 Policies | 1 in force |
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.
The area around 1409 Copper Mountain Dr has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 501 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, T-Mobile, Verizon.
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