Los Angeles County property record for 20440 Blue Mountain Dr, Walnut, CA 91789
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,971 sqft · built 1965 |
| Lot Size | 0.233 acres (10,139 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $205,000 (Jul 1996) |
| Tax Bill | $4,961 (2025) |
| Deeds & Mortgages | Mar 2022 Mortgage |
| Flood Zone | Zone D (undetermined) |
| APN | 8712-004-020 |
| Primary APN | 8712-004-020 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,971 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1965 |
|---|---|
| Effective Year Built | Effective 1965 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Wood Shingle |
| Lot Area | 10,139 sqft (0.233 acres) |
| Lot Dimensions | 105 ft deep x 87 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Water Source | Commercial |
| Street Address | 20440 BLUE MOUNTAIN DR |
|---|---|
| City | WALNUT |
| State | CA |
| Zip | 91789-1001 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | WAR110000* |
| Legal Description | TRACT NO 27484 LOT 1 |
| Legal Subdivision | 27484 |
| Legal Tract | 27484 |
| Legal Block | 1 |
| Legal Lot Number | 1 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 403409 |
Source: Los Angeles County records, as of August 28, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 20440 BLUE MOUNTAIN DR, WALNUT, CA 91789-1001 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 22, 1996 · Amount on Record |
| Deed Sale | Jul 22, 1996 · Amount on Record |
| Deed Document Number | 19961174713 |
| Prior Transfer Date | May 15, 1996 |
| Prior Transfer Doc | 0001174713 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOS ANGELES CA |
| Property Address | 20440 BLUE MOUNTAIN DR, WALNUT, CA 91789-1001 |
| Transaction Type | Mortgage |
| Record Updated | Mar 8, 2022 |
| Title Company | WESTERN RESOURCES TITLE, WESTERN RESOURCES TITLE CO |
| Name | Verified Name |
|---|---|
| Address | 20440 BLUE MOUNTAIN DR, WALNUT, CA 91789-1001 |
| Document Number | 0000233199 |
|---|---|
| Date | Mar 1, 2022 |
| Instrument | 22-0233199 |
| Name | F & A FCU |
|---|---|
| Type | Credit Union |
| Address | MONTEREY PARK, CA 91754 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 180 Months |
| Due | Mar 1, 2037 |
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Walnut City |
| Unified School District | Walnut Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $350,923 (+2%) Land $116,274 Building $234,649 | |
| 2025 | $4,961.00 (+12.37%) Homeowner's exemption | $344,052 (+4.04%) Land $113,995 Building $230,057 |
| 2023 | $4,415.00 (+2.1%) Homeowner's exemption | $330,694 Land $109,569 Building $221,125 |
| 2022 | $4,324.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective September 30, 2026
| FEMA Flood Zone | Zone D undetermined · not studied |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 53% of the US · lower than 68% of California |
|---|---|
| Wildfire Likelihood | 0.07% annual chance |
| Exposure | Direct burnable vegetation |
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 96 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable | 1,000 / 1,000 |
May also be available: Verizon.
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