Los Angeles County property record for 24203 Gem Pl, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,305 sqft · built 1988 |
| Lot Size | 0.175 acres (7,611 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $465,000 (Nov 2008) |
| Tax Bill | $8,637 (2025) |
| Deeds & Mortgages | Nov 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 8281-040-041 |
| Primary APN | 8281-040-041 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Building Area | 1,305 sqft Living Area |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Construction Type | Wood |
| Lot Area | 7,611 sqft (0.175 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 24203 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 34 |
| Legal Subdivision | 42580 |
| Legal Tract | 42580 |
| Legal Block | 1 |
| Legal Lot Number | 34 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 403321 |
Source: Los Angeles County assessment roll, as of May 21, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3807 GRANDVIEW DR, BREA, CA 92823-1066 |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 3, 2008 · Amount on Record |
| Deed Sale | Nov 3, 2008 · Amount on Record |
| Prior Sale | Sep 25, 2000 · Amount on Record |
| Deed Document Number | 20081942380 |
| Last Transfer Date | Aug 26, 2016 |
| Transfer Doc | 0001460823 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 24203 GEM PL, DIAMOND BAR, CA 91765-1854 |
| Document Number | 0001515429 |
| Instrument Date | Nov 17, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Dec 1, 2020 |
| Title Company | CHICAGO TITLE COMPANY, CHICAGO TITLE CO |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 24203 GEM PL DIAMOND BAR CA 917651854, DIAMOND BAR, CA 91765-1854 |
| Document Number | 0001515429 |
|---|---|
| Date | Nov 24, 2020 |
| Instrument | 1515429 |
| Name | TOP WORLD INVESTMENT INC TOP WORLD INVESTMENT INC |
|---|---|
| Type | Bank |
| Address | CITY OF INDUSTRY, CA 91748 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Nov 23, 2050 |
Source: Los Angeles County assessment roll, as of May 21, 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 |
|---|---|---|
| 2025 | $8,637.00 (+10.59%) | $631,307 (+4.04%) Land $353,024 Building $278,283 |
| 2023 | $7,810.00 (+1.56%) | $606,794 Land $339,316 Building $267,478 |
| 2022 | $7,690.00 |
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
| 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.
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 |
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 USA Fixed Wireless | 100 / 20 |
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