San Bernardino County property record for 421 E F St, Ontario, CA 91764
| Property Type | Triplex |
|---|---|
| Details | 5 bd · 3.5 ba · 1,347 sqft · built 1908 |
| Lot Size | 0.195 acres (8,496 sqft) |
| Owner | Company Name on File |
| Last Sale | $575,000 (Mar 2006) |
| Tax Bill | $8,556 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1048-376-11-0000 |
| Primary APN | 1048-376-11-0000 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,347 sqft Living Area |
| Gross Area | 3,089 sqft |
| 1st Floor Area | 1,347 sqft |
| Family Room | Family Room |
| Year Built | Built 1908 |
|---|---|
| Effective Year Built | Effective 1928 |
| Architectural Style | Conventional |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 8,496 sqft (0.195 acres) |
| Lot Dimensions | 177 ft deep x 48 ft wide |
| Porch | Patio/Porch |
| Porch Area | 200 sqft |
| Total Buildings | 3 Buildings |
| Cooling System | None |
|---|---|
| Heating System | Floor/Wall Furnace |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 421 E F ST, A |
|---|---|
| City | ONTARIO |
| State | CA |
| Zip | 91764-3767 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Triplex |
| Legal Description | ONTARIO CITY LOT 10 BLK 1 |
| Legal Subdivision | TOWN OF ONTARIO |
| Legal Block | 1 |
| Legal Lot Number | 10 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 1400 |
421 E F St is owned by a company that acquired it in June 2025.
Source: San Bernardino County records, as of October 12, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 421 E F ST, ONTARIO, CA 91764-3721 |
| Owner Type | Company |
| Vesting | Limited Liability Partnership |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 24, 2006 · Amount on File |
| Deed Sale | Mar 24, 2006 · Amount on File |
| Deed Document Number | 2006198637 |
| Last Transfer Date | Jun 5, 2025 |
| Transfer Doc | 0000129816 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 421 E F St was $8,556.
Source: San Bernardino County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Bernardino County |
| Municipality | Ontario 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 | $895,920 (+14.02%) Land $214,200 Building $681,720 | |
| 2025 | $8,556.00 Homeowner's exemption | $785,787 Land $273,317 Building $512,470 |
| 2023 | $8,124.00 (+4.48%) Homeowner's exemption | $755,275 Land $262,704 Building $492,571 |
| 2022 | $7,776.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 421 E F St 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 421 E F St 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 | ONTARIO MUNICIPAL UTILITIES COMPANY serves 185,010 people · EPA ID CA3610034 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Jul 2025 |
| 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 761 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 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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