Los Angeles County property record for 1020 Adel Ave, Diamond Bar, CA 91789
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,366 sqft · built 1968 |
| Lot Size | 0.196 acres (8,524 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $158,000 (Dec 1996) |
| Tax Bill | $3,763 (2025) |
| Deeds & Mortgages | Jul 2017 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 8763-001-021 |
| Primary APN | 8763-001-021 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Building Area | 1,366 sqft Living Area |
| Year Built | Built 1968 |
|---|---|
| Effective Year Built | Effective 1968 |
| Construction Type | Wood |
| Lot Area | 8,524 sqft (0.196 acres) |
| Heating System | Central |
|---|
| Street Address | 1020 ADEL AVE |
|---|---|
| City | WALNUT |
| State | CA |
| Zip | 91789-3902 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | LCR108 |
| Legal Description | TRACT NO 27264 LOT 35 |
| Legal Subdivision | 27264 |
| Legal Tract | 27264 |
| Legal Block | 3 |
| Legal Lot Number | 35 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 3 |
| Census Block | 3015 |
| Census Tract | 403328 |
1020 Adel Ave is held in a trust since December 1996.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 1020 ADEL AVE, WALNUT, CA 91789-3902 |
| 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 | Dec 24, 1996 · Amount on File |
| Deed Sale | Dec 24, 1996 · Amount on File |
| Prior Sale | Sep 16, 1996 · Amount on File |
| Deed Document Number | 19962076489 |
| Prior Transfer Date | Sep 12, 1996 |
| Prior Transfer Doc | 0001521661 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 1020 ADEL AVE, DIAMOND BAR, CA 91789-3902 |
| Transaction Type | Mortgage |
| Record Updated | Jul 20, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0000767565 |
|---|---|
| Date | Jul 10, 2017 |
| Instrument | 17-0767565 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 419 Months |
| Due | Jun 22, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
The 2025 property tax bill for 1020 Adel Ave was $3,763.
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 | $262,451 (+2%) Land $136,210 Building $126,241 | |
| 2025 | $3,763.00 | $257,306 Land $133,540 Building $123,766 |
| 2023 | $3,464.00 (+2.15%) | $247,316 Land $128,355 Building $118,961 |
| 2022 | $3,391.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1020 Adel Ave 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.
The area around 1020 Adel Ave 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 286 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Starlink Satellite | 280 / 30 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Verizon.
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