San Bernardino County property record for 527 E Main St, Ontario, CA 91761
| Property Type | Warehouse, Storage |
|---|---|
| Details | 7,800 sqft · built 1920 |
| Lot Size | 0.24 acres (10,440 sqft) |
| Owner | Company Name on File |
| Last Sale | $240,000 (Jul 2003) |
| Tax Bill | $3,743 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1049-081-07-0000 |
| Primary APN | 1049-081-07-0000 |
|---|
| Stories | 1 Story |
|---|---|
| Building Area | 7,800 sqft Gross Area |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1920 |
| Exterior Material | Concrete |
| Construction Type | Masonry / Concrete Block |
| Fire Resistance | Masonry Walls, Wood Interior |
| Roof Type | Flat |
| Lot Area | 10,440 sqft (0.24 acres) |
| Lot Dimensions | 87 ft deep x 120 ft wide |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 527 E MAIN ST |
|---|---|
| City | ONTARIO |
| State | CA |
| Zip | 91761 |
| Property Category | Industrial |
| Property Type | Industrial > Warehouse, Storage |
| Legal Description | VILLA PLOTS SOUTH SIDE TRACT E 120 FT LOT 3 AND W 16 FT LOT 2 BLK 104 |
| Legal Subdivision | VILLA PLOTS SOUTH SIDE |
| Legal Tract | E |
| Legal Block | 104 |
| Legal Lot Number | 3 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 1600 |
Source: San Bernardino County records · APN 1049-081-07-0000
Assessment roll updated July 14, 2026 · Last verified July 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 | 322 W 22ND ST, UPLAND, CA 91784-1419 |
| Owner Type | Company |
| Vesting | Sole Owner |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jul 09, 2003 · Amount on Record |
| Deed Sale | Jul 09, 2003 · Amount on Record |
| Deed Document Number | 2003499660 |
| Record Updated | Sep 20, 2026 |
Source: San Bernardino County records · Assessment roll updated July 14, 2026 · Last verified July 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) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $348,058 (+2%) Land $44,957 Building $303,101 | |
| 2025 | $3,743.00 (+5.26%) | $341,233 (+4.04%) Land $44,075 Building $297,158 |
| 2023 | $3,556.00 (+1.34%) | $327,983 Land $42,364 Building $285,619 |
| 2022 | $3,509.00 |
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 X minimal risk |
|---|---|
| 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 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: California Internet, Verizon.
Based on FCC filings for 300 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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