Los Angeles County property record for 24233 Gem Pl, Diamond Bar, CA 91765
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,499 sqft · built 1988 |
| Lot Size | 0.194 acres (8,442 sqft) |
| Owner | Company Name on File |
| Last Sale | $482,000 (Dec 2004) |
| Tax Bill | $9,150 (2025) |
| Deeds & Mortgages | Sep 2017 Line of Credit Jan 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 8281-040-046 |
| Primary APN | 8281-040-046 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 1,499 sqft Living Area |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Construction Type | Wood |
| Lot Area | 8,442 sqft (0.194 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 24233 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 39 |
| Legal Subdivision | 42580 |
| Legal Tract | 42580 |
| Legal Block | 1 |
| Legal Lot Number | 39 |
| 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 records · APN 8281-040-046
Assessment roll updated May 21, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 24233 GEM PL, DIAMOND BAR, CA 91765-1854 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Date | Document |
|---|---|
| Sep 12, 2017 | Deed of Trust, Mortgage · Line of Credit SCE FCU |
| Jan 15, 2021 | Intrafamily Transfer, Transfer · Conventional Mortgage AMERICAN PACIFIC MORTGAGE CORP |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Dec 27, 2004 · Amount on Record |
| Deed Sale | Dec 27, 2004 · Amount on Record |
| Prior Sale | Aug 20, 1999 · Amount on Record |
| Deed Document Number | 20043341348 |
| Last Transfer Date | Oct 22, 2024 |
| Transfer Doc | 0000733714 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 24233 GEM PL, DIAMOND BAR, CA 91765-1854 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Title Company | LAWYERS TITLE |
| Name | Verified Name |
|---|
| Document Number | 0001035841 |
|---|---|
| Date | Sep 12, 2017 |
| Instrument | 17-1035841 |
| Name | SCE FCU |
|---|---|
| Type | Credit Union |
| Address | BALDWIN PARK, CA 91706 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 240 Months |
| Due | Sep 11, 2037 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Recording Date | Jan 15, 2021 |
| Property Address | 24233 GEM PL, DIAMOND BAR, CA 91765-1854 |
| Document Number | 0000086887 |
| Map Reference | MB 1033 PG 45-53 |
| Instrument Date | Jan 04, 2021 |
| Instrument | 21-0086887 |
| Transaction Type | Transfer |
| Record Updated | Sep 22, 2021 |
| Title Company | WESTERN RESOURCES TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 24233 GEM PL, DIAMOND BAR, CA 91765-1854 |
| Document Number | 0000086888 |
|---|---|
| Date | Jan 15, 2021 |
| Instrument | 21-0086888 |
| Name | AMERICAN PACIFIC MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Feb 01, 2051 |
Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Diamond Bar City |
| Unified School District | Pomona Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $9,150.00 (+10.47%) | $671,847 (+4.04%) Land $528,981 Building $142,866 |
| 2023 | $8,283.00 (+1.56%) | $645,760 Land $508,441 Building $137,319 |
| 2022 | $8,156.00 |
Source: FEMA National Flood Hazard Layer as of September 30, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| 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 are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| 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 |
Based on FCC filings for 322 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | WALNUT VALLEY WATER DISTRICT serves 100,941 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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