San Bernardino County property record for 4621 E Guasti Rd, Ontario, CA 91761
| Property Type | Warehouse, Storage |
|---|---|
| Details | 1.5 ba · 64,512 sqft · built 1988 |
| Lot Size | 3.35 acres (145,926 sqft) |
| Owner | Company Name on File |
| Last Sale | $13,335,000 (May 2021) |
| Tax Bill | $152,552 (2025) |
| Deeds & Mortgages | May 2021 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 0238-042-19-0000 |
| Primary APN | 0238-042-19-0000 |
|---|
| Full Baths | 1.5 Baths |
|---|---|
| Half Baths | 3 Half Baths |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 64,512 sqft Gross Area |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Exterior Material | Precast Concrete Panel |
| Construction Type | Masonry / Concrete Block |
| Fire Resistance | Masonry Walls, Wood Interior |
| Roof Type | Flat |
| Lot Area | 145,926 sqft |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 4621 E GUASTI RD |
|---|---|
| City | ONTARIO |
| State | CA |
| Zip | 91761-8105 |
| Property Category | Industrial |
| Property Type | Industrial > Warehouse, Storage |
| Legal Description | PARCEL MAP 9500 PARCEL 2 |
| Legal Subdivision | PARCEL MAP NO 9500 |
| Legal Block | 1 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | SAN BERNARDINO |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 12700 |
4621 E Guasti Rd, an industrial property, is owned by a company that bought it in May 2021.
Source: San Bernardino County records, as of August 31, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 11620 WILSHIRE BLVD, 10, LOS ANGELES, CA 90025-6821 |
| Owner Type | Company |
| Vesting | Limited Partnership |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 21, 2021 · Amount on File |
| Deed Sale | May 21, 2021 · Amount on File |
| Deed Document Number | 2021236143 |
| Prior Transfer Date | Feb 8, 2006 |
| Prior Transfer Doc | 0000143331 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Recording Date | May 21, 2021 |
| Property Address | 4621 E GUASTI RD, ONTARIO, CA 91761-8105 |
| Document Number | 0000236143 |
| Map Reference | MB 107 PG 61-63 |
| Instrument Date | May 18, 2021 |
| Instrument | 2021-0236143 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2021 |
| Title Company | CHICAGO TITLE COMPANY-C/I, CHICAGO TITLE CO COM DIV |
| Amount | Amount on Record |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 915 WILSHIRE BLVD STE 2175, 2175, LOS ANGELES, CA 90017-3469 |
The 2025 property tax bill for 4621 E Guasti Rd was $152,552.
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 | $14,722,917 (+2%) Land $3,643,467 Building $11,079,450 | |
| 2025 | $152,552.00 | $14,434,232 Land $3,572,026 Building $10,862,206 |
| 2023 | $145,025.00 (+1.85%) | $13,873,734 Land $3,433,320 Building $10,440,414 |
| 2022 | $142,386.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4621 E Guasti Rd in Zone X, an area of minimal flood risk.
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 |
|---|---|
| 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.
The area around 4621 E Guasti Rd has no burnable land within ember reach, so its wildfire risk is not rated.
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 23 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| GeoLinks Fixed Wireless | 1,000 / 1,000 |
May also be available: AT&T, Frontier, Inyo Networks, Spectrum, T-Mobile, Ultimate Internet Access, Verizon.
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