San Bernardino County property record for 437 E Deerfield St, Ontario, CA 91761
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 3,168 sqft · built 2001 |
| Lot Size | 0.174 acres (7,590 sqft) |
| Owner | Company Name on File |
| Last Sale | $300,500 (Dec 2001) |
| Tax Bill | $4,876 (2025) |
| Flood Zone | Zone D (undetermined) |
| APN | 1051-412-06-0000 |
| Primary APN | 1051-412-06-0000 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 3,168 sqft Living Area |
| Gross Area | 3,754 sqft |
| 1st Floor Area | 1,418 sqft |
| 2nd Floor Area | 1,750 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2001 |
|---|---|
| Effective Year Built | Effective 2001 |
| Architectural Style | Modern |
| Construction Type | Frame |
| Roof Material | Tile |
| Lot Area | 7,590 sqft (0.174 acres) |
| Garage Type | Attached |
| Garage Area | 586 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Patio/Porch |
| Porch Area | 105 sqft |
| Patio Area | 105 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 437 E DEERFIELD ST |
|---|---|
| City | ONTARIO |
| State | CA |
| Zip | 91761-8742 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 16050 LOT 52 BOOK 279 PAGE 21 |
| Legal Tract | 16050 |
| Legal Block | 2 |
| Legal Lot Number | 52 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 1804 |
Source: San Bernardino County records · APN 1051-412-06-0000
Assessment roll updated July 14, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 3698, ONTARIO, CA 91761-0970 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Dec 31, 2001 · Amount on Record |
| Deed Sale | Dec 31, 2001 · Amount on Record |
| Prior Sale | Oct 31, 2001 · Amount on Record |
| Deed Document Number | 2001605273 |
| Last Transfer Date | Mar 16, 2016 |
| Transfer Doc | 0000169475 |
| Record Updated | Sep 20, 2026 |
Source: San Bernardino County records · Assessment roll updated July 14, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | San Bernardino County |
| Municipality | Ontario City |
| Unified School District | Chino Valley Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $452,812 (+2%) Land $105,481 Building $347,331 | |
| 2025 | $4,876.00 (+5.72%) Homeowner's exemption | $443,934 (+4.04%) Land $103,413 Building $340,521 |
| 2023 | $4,612.00 (+0.63%) Homeowner's exemption | $426,695 Land $99,397 Building $327,298 |
| 2022 | $4,583.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone D undetermined · not studied |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Starlink Satellite | 280 / 30 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: California Internet, Verizon.
Based on FCC filings for 687 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | ONTARIO MUNICIPAL UTILITIES COMPANY serves 185,010 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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