Los Angeles County property record for 20819 Timberline Ln, Diamond Bar, CA 91789 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 3 Baths |
| Year Built | Built 1989 |
| Square Footage | 1,546 sqft Living Area |
| Lot Size | 4,273 sqft (0.098 acres) |
| Occupancy | Owner Occupied |
| Tax Bill | $6,789.00 (2025) |
| Primary APN | 8765-009-084 |
|---|
| 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 Construction |
| Lot Area | 4,273 sqft (0.098 acres) |
| Depth X Width | 100 ft x 42 ft Depth x Width |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Central Heating |
| Street Address | 20819 TIMBERLINE LN |
|---|---|
| City | WALNUT |
| State | CA |
| Zip | 91789-4081 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | TR=45268 LOT 79 |
| Legal Subdivision | 45268 |
| Legal Tract | 45268 |
| Legal Block | 1 |
| Legal Lot Number | 79 |
| Jurisdiction | LOS ANGELES CA |
| Minor Civil Division | EAST SAN GABRIEL VALLEY |
| Census Blockgroup | 1 |
| Census Block | 1004 |
| Census Tract | 403305 |
Source: Los Angeles County records · APN 8765-009-084
Assessment roll updated May 21, 2026 · Last verified June 2026
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| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 20819 TIMBERLINE LN, WALNUT, CA 91789-4081 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Family Revocable Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Dec 04, 2006 |
| Transfer Doc | 0002748897 |
| Record Refreshed | 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 | $6,789.00 (+7.49%) | $467,126 (+4.04%) Land $299,942 Building $167,184 |
| 2023 | $6,316.00 (+2.22%) | $448,989 Land $288,296 Building $160,693 |
| 2022 | $6,179.00 |
20819 Timberline Ln is in FEMA Zone X, outside the Special Flood Hazard Area, with indirect wildfire exposure (Moderate risk).
Source: FEMA National Flood Hazard Layer · Los Angeles County (06037C), updated September 30, 2026
| FEMA Flood Zone | Zone X minimal flood hazard · outside the 0.2% annual chance floodplain |
|---|---|
| Special Flood Hazard Area | No |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk to Homes | Moderate 44th percentile of exposed land nationally · 26th in California |
|---|---|
| Wildfire Likelihood | Low — about 1 in 2,000 per year |
| Exposure | Indirect within ember reach of burnable land · adjoins burnable vegetation |
Values are read at the parcel center point; lenders make the official flood determination.
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