San Bernardino County property record for 4015 E Guasti Rd, Ontario, CA 91761
| Property Type | Commercial Office |
|---|---|
| Details | 15,561 sqft · built 1980 |
| Lot Size | 2.7 acres (118,047 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $23,153 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 0210-212-45-0000 |
| Primary APN | 0210-212-45-0000 |
|---|
| Stories | 1 Story |
|---|---|
| Building Area | 15,561 sqft Gross Area |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Construction Type | Concrete |
| Fire Resistance | Fireproof Reinforced Concrete |
| Lot Area | 118,047 sqft |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 4015 E GUASTI RD |
|---|---|
| City | ONTARIO |
| State | CA |
| Zip | 91761-1521 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Legal Description | PTN PARCEL 2 PARCEL MAP 4603 BEG NE COR SD PARCEL MAP TH S 0 DEG 23 MIN 25 SECONDS E ALG ELY LI SD PARCEL MAP 261.21 FT TH S 89 DEG 29 MIN 50 SECONDS W 447.74 FT TO A PT ON A LI WHICH IS 416.09 FT E OF THE E LI OF PAR 3 OF SD PARCEL MAP MEAS AT R/A T |
| Legal Block | 1 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | SAN BERNARDINO |
| Census Block Group | 1 |
| Census Block | 1013 |
| Census Tract | 12700 |
Source: San Bernardino County records, as of July 14, 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 Record |
|---|---|
| Mailing Address | 2675 MORGANTOWN RD, READING, PA 19607-9676 |
| Owner Type | Company |
| Vesting | Trust, Corporate Trust |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
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 | Cucamonga Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $2,202,811 (+2%) Land $799,787 Building $1,403,024 | |
| 2025 | $23,153.00 (+5.2%) | $2,159,619 (+4.04%) Land $784,105 Building $1,375,514 |
| 2023 | $22,009.00 (+1.87%) | $2,075,758 Land $753,657 Building $1,322,101 |
| 2022 | $21,606.00 |
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 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AH, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 4 in force |
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 42 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ultimate Internet Access Fiber | 8,000 / 8,000 |
May also be available: AT&T, GeoLinks, Inyo Networks, Spectrum, T-Mobile, Verizon.
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