Los Angeles County property record for 1234 Heidelberg Ave, Walnut, CA 91789
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,772 sqft · built 1985 |
| Lot Size | 0.197 acres (8,566 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $280,000 (Jan 2000) |
| Tax Bill | $5,994 (2025) |
| Flood Zone | Zone D (undetermined) |
| APN | 8712-035-047 |
| Primary APN | 8712-035-047 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Building Area | 1,772 sqft Living Area |
| Year Built | Built 1985 |
|---|---|
| Effective Year Built | Effective 1985 |
| Construction Type | Wood |
| Lot Area | 8,566 sqft (0.197 acres) |
| Lot Dimensions | 126 ft deep x 68 ft wide |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 1234 HEIDELBERG AVE |
|---|---|
| City | WALNUT |
| State | CA |
| Zip | 91789-1229 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | WAC3-RPD28 |
| Legal Description | *TR=35644 LOT 74 |
| Legal Subdivision | 35644 |
| Legal Tract | 35644 |
| Legal Block | 2 |
| Legal Lot Number | 74 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 2 |
| Census Block | 2013 |
| Census Tract | 403409 |
1234 Heidelberg Ave is owned and occupied by two individuals who bought it in January 2000.
Source: Los Angeles County records, as of August 25, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1234 HEIDELBERG AVE, WALNUT, CA 91789-1229 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | Jan 24, 2000 · Amount on File |
| Deed Sale | Jan 24, 2000 · Amount on File |
| Deed Document Number | 2000102678 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 1234 Heidelberg Ave was $5,994 with a homeowner's exemption.
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 | $438,929 (+2%) Land $184,191 Building $254,738 | |
| 2025 | $5,994.00 Homeowner's exemption | $430,324 Land $180,580 Building $249,744 |
| 2023 | $5,570.00 (+2.03%) Homeowner's exemption | $413,617 Land $173,569 Building $240,048 |
| 2022 | $5,459.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1234 Heidelberg Ave in Zone D, where flood risk has not been studied.
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.
Wildfire risk around 1234 Heidelberg Ave is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 96% of the US · lower than 97.4% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 426 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Verizon.
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