Los Angeles County property record for 20820 Timberline Ln, Diamond Bar, CA 91789 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,546 sqft · built 1989 |
| Lot Size | 0.093 acres (4,060 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $4,985 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8765-009-028 |
| Primary APN | 8765-009-028 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 1,546 sqft Living Area |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Construction Type | Wood |
| Lot Area | 4,060 sqft (0.093 acres) |
| Lot Dimensions | 101 ft deep x 40 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 20820 TIMBERLINE LN |
|---|---|
| City | WALNUT |
| State | CA |
| Zip | 91789-4080 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TR=45268 LOT 23 |
| Legal Subdivision | 45268 |
| Legal Tract | 45268 |
| Legal Block | 1 |
| Legal Lot Number | 23 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 403305 |
Source: Los Angeles County records · APN 8765-009-028
Assessment roll updated May 21, 2026 · Last verified June 2026
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| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 520 TALLANT RD, SANTA BARBARA, CA 93105-4134 |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Dec 17, 1999 |
| Transfer Doc | 0000149379 |
| Record Updated | Sep 20, 2026 |
Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Diamond Bar City |
| Unified School District | Walnut Valley 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 | $4,985.00 (+8.06%) | $313,161 (+4.04%) Land $125,521 Building $187,640 |
| 2023 | $4,613.00 (+2.26%) | $301,002 Land $120,648 Building $180,354 |
| 2022 | $4,511.00 |
Source: FEMA National Flood Hazard Layer, Los Angeles County (06037C), updated September 30, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | Moderate above 44% of the US · above 26% of California |
|---|---|
| Wildfire Likelihood | About 1 in 2,000 per year |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Values are read at the parcel center point; lenders make the official flood determination.
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