Los Angeles County property record for 21209 Stonybrook Dr, Walnut, CA 91789 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,859 sqft · built 1988 |
| Lot Size | 0.954 acres (41,543 sqft) |
| Owner | Individual Name on File |
| Last Sale | $680,000 (Dec 2002) |
| Tax Bill | $12,777 (2025) |
| Flood Zone | Zone D (undetermined) |
| APN | 8709-061-037 |
| Primary APN | 8709-061-037 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 2,859 sqft Living Area |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Construction Type | Wood |
| Lot Area | 41,543 sqft (0.954 acres) |
| Lot Dimensions | 455 ft deep x 134 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 21209 STONYBROOK DR |
|---|---|
| City | WALNUT |
| State | CA |
| Zip | 91789-5010 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TR=40716 LOT 37 |
| Legal Subdivision | 40716 |
| Legal Tract | 40716 |
| Legal Block | 3 |
| Legal Lot Number | 37 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 403403 |
Source: Los Angeles County records · APN 8709-061-037
Assessment roll updated May 21, 2026 · Last verified June 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 21209 STONYBROOK DR, WALNUT, CA 91789-5010 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Dec 16, 2002 · Amount on Record |
| Deed Sale | Dec 16, 2002 · Amount on Record |
| Deed Document Number | 20023070114 |
| Last Transfer Date | May 24, 2006 |
| Transfer Doc | 0001196855 |
| 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 | Walnut 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 | $12,777.00 (+7.59%) Homeowner's exemption | $984,847 (+4.04%) Land $405,522 Building $579,325 |
| 2023 | $11,876.00 (+2.05%) Homeowner's exemption | $946,606 Land $389,776 Building $556,830 |
| 2022 | $11,638.00 |
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 D |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Undetermined not studied |
| 500-Year Floodplain | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
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