San Bernardino County property record for 521 E I St, Ontario, CA 91764 · Last verified July 2026
| Property Type | Duplex |
|---|---|
| Details | 6 bd · 3 ba · 1,554 sqft · built 1920 |
| Lot Size | 0.142 acres (6,200 sqft) |
| Owner | Company Name on File |
| Tax Bill | $2,923 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1048-082-45-0000 |
| Primary APN | 1048-082-45-0000 |
|---|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,554 sqft Living Area |
| Gross Area | 3,348 sqft |
| 1st Floor Area | 1,554 sqft |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1920 |
| Architectural Style | Conventional |
| Construction Type | Frame |
| Roof Material | Built-Up Asphalt |
| Lot Area | 6,200 sqft (0.142 acres) |
| Lot Dimensions | 124 ft deep x 50 ft wide |
| Garage Type | Attached |
| Garage Area | 240 sqft |
| Parking Spaces | 1 Parking Space |
| Total Buildings | 3 Buildings |
| Cooling System | None |
|---|---|
| Heating System | Floor/Wall Furnace |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 521 E I ST |
|---|---|
| City | ONTARIO |
| State | CA |
| Zip | 91764-2813 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | PLAZA SERENA SUB LOT 11 BLK B |
| Legal Subdivision | PLAZA SERENA |
| Legal Block | B |
| Legal Lot Number | 11 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 1200 |
Source: San Bernardino County records · APN 1048-082-45-0000
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 | 12656 FARNDON AVE, CHINO, CA 91710-3016 |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | May 13, 2015 |
| Transfer Doc | 0000243436 |
| 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 | $270,231 (+2%) Land $75,066 Building $195,165 | |
| 2025 | $2,923.00 (+5.26%) | $264,932 (+4.04%) Land $73,594 Building $191,338 |
| 2023 | $2,777.00 (+1.35%) | $254,644 Land $70,736 Building $183,908 |
| 2022 | $2,740.00 |
Source: FEMA National Flood Hazard Layer, San Bernardino County (06071C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060710012002, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Flood Insurance Cost | Premium on Record median of 1 individual NFIP policies nearby |
| Nearby Flood Policies | 1 in force 1 of 1 on primary residences |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
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