Los Angeles County property record for 24215 Gem Pl, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,499 sqft · built 1988 |
| Lot Size | 0.154 acres (6,704 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $204,000 (Nov 1993) |
| Tax Bill | $5,002 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8281-040-043 |
| Primary APN | 8281-040-043 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,499 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Construction Type | Wood |
| Lot Area | 6,704 sqft (0.154 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 24215 GEM PL |
|---|---|
| City | DIAMOND BAR |
| State | CA |
| Zip | 91765-1854 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR115000- |
| Legal Description | TR=42580 LOT 36 |
| Legal Subdivision | 42580 |
| Legal Tract | 42580 |
| Legal Block | 1 |
| Legal Lot Number | 36 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 403321 |
24215 Gem Pl is owner-occupied and held in a trust since May 2010.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 24215 GEM PL, DIAMOND BAR, CA 91765-1854 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 | Nov 29, 1993 · Amount on File |
| Deed Sale | Nov 29, 1993 · Amount on File |
| Deed Document Number | 19932328196 |
| Last Transfer Date | May 1, 2010 |
| Transfer Doc | 0000668600 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 24215 Gem Pl was $5,002 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 | Pomona Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $353,285 (+2%) Land $144,569 Building $208,716 | |
| 2025 | $5,002.00 Homeowner's exemption | $346,359 Land $141,735 Building $204,624 |
| 2023 | $4,516.00 (+1.64%) Homeowner's exemption | $332,911 Land $136,232 Building $196,679 |
| 2022 | $4,443.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 24215 Gem Pl 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 24215 Gem Pl is low, with a 0.03% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.03% 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 322 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 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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