San Bernardino County property record for 10420 Amherst Ave, Montclair, CA 91763
| Property Type | Quadplex |
|---|---|
| Details | 4 ba · 3,994 sqft · built 1963 |
| Lot Size | 0.166 acres (7,232 sqft) |
| Owner | Company Name on File |
| Tax Bill | $2,785 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1009-514-18-0000 |
| Primary APN | 1009-514-18-0000 |
|---|---|
| Alternative APN |
|
| Full Baths | 4 Baths |
|---|---|
| Units | 4 Units |
| Building Area | 3,994 sqft Total Area |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1963 |
| Architectural Style | Quadruplex |
| Construction Type | Steel Frame |
| Lot Area | 7,232 sqft (0.166 acres) |
| Lot Dimensions | 113 ft deep x 64 ft wide |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 10420 AMHERST AVE |
|---|---|
| City | MONTCLAIR |
| State | CA |
| Zip | 91763-4000 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Quadplex |
| Legal Description | TRACT 6617 LOT 11 |
| Legal Tract | 6617 |
| Legal Block | 4 |
| Legal Lot Number | 11 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 305 |
10420 Amherst Ave, a quadplex, is owned by a company that acquired it in August 2004.
Source: San Bernardino County records, as of July 14, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 17736 LILIANA CT, ROWLAND HEIGHTS, CA 91748-4155 |
| Owner Type | Company |
| Vesting | Borrower in Default |
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 | Name on Deed |
|---|---|
| Last Sale | Jun 12, 1998 |
| Deed Sale | Jun 12, 1998 |
| Prior Sale | Jan 15, 1998 · Amount on File |
| Deed Document Number | 1998226998 |
| Last Transfer Date | Aug 11, 2004 |
| Transfer Doc | 0000738493 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 10420 Amherst Ave was $2,785.
Source: San Bernardino County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Bernardino County |
| Municipality | Montclair City |
| Secondary School District | Chaffey Joint Union High School District (09 - 12) |
| Elementary School District | Ontario-Montclair School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $255,852 (+2%) Land $71,956 Building $183,896 | |
| 2025 | $2,785.00 | $250,835 Land $70,545 Building $180,290 |
| 2023 | $2,645.00 (+1.34%) | $241,095 Land $67,806 Building $173,289 |
| 2022 | $2,610.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 10420 Amherst Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 10420 Amherst Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | MONTE VISTA WD serves 56,390 people · EPA ID CA3610029 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Lead | Under 1 ppb (2023–2025) 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 649 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 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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