San Bernardino County property record for 543 W G St, Ontario, CA 91762
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,763 sqft · built 1952 |
| Lot Size | 0.178 acres (7,772 sqft) |
| Owner | Company Name on File |
| Last Sale | $124,000 (Jul 1999) |
| Tax Bill | $3,526 (2025) |
| Deeds & Mortgages | May 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 1048-321-18-0000 |
| Primary APN | 1048-321-18-0000 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,763 sqft Living Area |
| 1st Floor Area | 1,763 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1952 |
| Architectural Style | Conventional |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 7,772 sqft (0.178 acres) |
| Lot Dimensions | 134 ft deep x 58 ft wide |
| Garage Type | Detached |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Patio/Porch |
| Porch Area | 856 sqft |
| Patio Area | 328 sqft |
| Cooling System | None |
|---|---|
| Heating System | Floor/Wall Furnace |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 543 W G ST |
|---|---|
| City | ONTARIO |
| State | CA |
| Zip | 91762-3150 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 3823 LOT 5 |
| Legal Subdivision | TRACT NO . 3823 |
| Legal Tract | 3823 |
| Legal Block | 3 |
| Legal Lot Number | 5 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 1103 |
543 W G St is owned by a company that acquired it in May 2023 and is owner-occupied.
Source: San Bernardino County records, as of July 14, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 543 W G ST, ONTARIO, CA 91762-3150 |
| Occupancy | Owner Occupied |
| 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 | Jul 8, 1999 · Amount on File |
| Deed Sale | Jul 8, 1999 · Amount on File |
| Deed Document Number | 1999288271 |
| Last Transfer Date | May 20, 2023 |
| Transfer Doc | 0000123706 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Recording Date | May 22, 2023 |
| Property Address | 543 W G ST, ONTARIO, CA 91762-3150 |
| Document Number | 0000123706 |
| Map Reference | MB 49 PG 49 |
| Instrument Date | May 20, 2023 |
| Instrument | 2023-0123706 |
| Transaction Type | Transfer |
| Record Updated | Jun 20, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 543 W G ST, ONTARIO, CA 91762-3150 |
| Investor | Possibly a Property Investor |
The 2025 property tax bill for 543 W G St was $3,526 with a homeowner's exemption.
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 | $333,516 (+2%) Land $70,548 Building $262,968 | |
| 2025 | $3,526.00 Homeowner's exemption | $326,977 Land $69,165 Building $257,812 |
| 2023 | $2,339.00 (+1.43%) Homeowner's exemption | $221,143 Land $66,479 Building $154,664 |
| 2022 | $2,306.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 543 W G 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 543 W G 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 750 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 |
May also be available: AT&T, GeoLinks.
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