San Bernardino County property record for 1531 W 4th St, Ontario, CA 91762
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,294 sqft · built 1955 |
| Lot Size | 0.18 acres (7,847 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $7,012 (2025) |
| Deeds & Mortgages | May 2026 Transfer May 2026 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 1010-091-28-0000 |
| Primary APN | 1010-091-28-0000 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,294 sqft Living Area |
| 1st Floor Area | 1,294 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1955 |
| Architectural Style | Modern |
| Construction Type | Frame |
| Roof Material | Built-Up Asphalt |
| Lot Area | 7,847 sqft (0.18 acres) |
| Lot Dimensions | 133 ft deep x 59 ft wide |
| Garage Type | Detached |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Patio/Porch |
| Porch Area | 152 sqft |
| Patio Area | 152 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 1531 W 4TH ST |
|---|---|
| City | ONTARIO |
| State | CA |
| Zip | 91762-1718 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 4588 LOT 8 |
| Legal Subdivision | 58M31 |
| Legal Tract | 4588 |
| Legal Block | 2 |
| Legal Lot Number | 8 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 1001 |
Source: San Bernardino County records, as of August 10, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 1531 W 4TH ST, ONTARIO, CA 91762-1718 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| May 22, 2026 | Affidavit of Death of Trustee, Transfer |
| May 1, 2026 | Affidavit of Death of Trustee, Transfer |
| May 1, 2026 | Affidavit of Death of Trustee, Transfer |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Mar 29, 2016 |
| Transfer Doc | 0000134937 |
| Record Updated | Sep 20, 2026 |
| Document Type | Affidavit of Death of Trustee |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Recording Date | May 22, 2026 |
| Property Address | 1531 W 4TH ST, ONTARIO, CA 91762-1718 |
| Document Number | 0000130255 |
| Instrument Date | May 15, 2026 |
| Instrument | 2026130255 |
| Transaction Type | Transfer |
| Record Updated | Jul 28, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1531 W 4TH ST, ONTARIO, CA 91762-1718 |
| Investor | Possibly a Property Investor |
| Document Type | Affidavit of Death of Trustee |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Recording Date | May 1, 2026 |
| Property Address | 1531 W 4TH ST, ONTARIO, CA 91762-1718 |
| Document Number | 0000111794 |
| Instrument Date | Apr 24, 2026 |
| Instrument | 2026111794 |
| Transaction Type | Transfer |
| Record Updated | Jul 28, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1531 W 4TH ST, ONTARIO, CA 91762-1718 |
| Investor | Possibly a Property Investor |
| Document Type | Affidavit of Death of Trustee |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Recording Date | May 1, 2026 |
| Property Address | 1531 W 4TH ST, ONTARIO, CA 91762-1718 |
| Document Number | 0000111795 |
| Instrument Date | Apr 24, 2026 |
| Instrument | 2026111795 |
| Transaction Type | Transfer |
| Record Updated | Jul 28, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1531 W 4TH ST, ONTARIO, CA 91762-1718 |
| Investor | Possibly a Property Investor |
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 | $146,956 (+2%) Land $32,655 Building $114,301 | |
| 2025 | $7,012.00 (+1.14%) Homeowner's exemption | $144,075 (+4.04%) Land $32,015 Building $112,060 |
| 2023 | $6,933.00 (+0.3%) Homeowner's exemption | $138,481 Land $30,772 Building $107,709 |
| 2022 | $6,912.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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.
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 514 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 |
May also be available: GeoLinks, Verizon.
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