San Bernardino County property record for 3237 E Guasti Rd, Ontario, CA 91761
| Property Type | Commercial Office |
|---|---|
| Details | 53,911 sqft · built 2006 |
| Lot Size | 3.41 acres (148,540 sqft) |
| Owner | Company Name on File |
| Last Sale | $12,200,000 (Apr 2026) |
| Tax Bill | $85,920 (2025) |
| Deeds & Mortgages | Apr 2026 Sale & Mortgage Jan 2018 Loan Modification |
| Flood Zone | Zone X (moderate risk) |
| APN | 0210-551-18-0000 |
| Primary APN | 0210-551-18-0000 |
|---|
| Units | 6 Units |
|---|---|
| Stories | 3 Stories |
| Building Area | 53,911 sqft Gross Area |
| Elevator | Elevator |
| Year Built | Built 2006 |
|---|---|
| Effective Year Built | Effective 2006 |
| Construction Type | Concrete |
| Fire Resistance | Fireproof Reinforced Concrete |
| Lot Area | 148,540 sqft |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 3237 E GUASTI RD |
|---|---|
| City | ONTARIO |
| State | CA |
| Zip | 91761-1241 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Legal Description | P.M. 11057 PAR 8 EX THAT PTN OF SD PAR 8 LYING ELY OF FOL DESC LI BEG AT THE MOST ELY COR OF SD PAR 8 TH S 45 DEG 01 MIN 53 SECONDS W ALG THE SELY LI OF SD PAR 8 183.95 FT TO THE SLY LI SD PAR 8 TH N 89 DEG 58 MIN 07 SECONDS W ALG SD SLY LI 134.57 FT |
| Legal Subdivision | PARCEL MAP 11057 |
| Legal Block | 1 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | SAN BERNARDINO |
| Census Block Group | 1 |
| Census Block | 1042 |
| Census Tract | 12700 |
Source: San Bernardino County assessment roll, 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 File |
|---|---|
| Mailing Address | 3800 E CONCOURSE ST 100, ONTARIO, CA 91764 |
| Owner Type | Company |
| Vesting | Limited Liability Partnership |
| Date | Document |
|---|---|
| Apr 30, 2026 | Grant Deed, Transfer · Conventional Mortgage BANNER BANK |
| Jan 18, 2018 | Loan Modification, Mortgage WELLS FARGO BK |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Apr 30, 2026 · Amount on Record |
| Deed Sale | Apr 30, 2026 · Amount on Record |
| Prior Sale | Aug 16, 2007 |
| Deed Document Number | 2026110198 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Recording Date | Apr 30, 2026 |
| Property Address | 3237 E GUASTI RD, ONTARIO, CA 91761-1241 |
| Document Number | 0000110198 |
| Instrument Date | Apr 30, 2026 |
| Instrument | 2026110198 |
| Transaction Type | Transfer |
| Record Updated | Jul 28, 2026 |
| Title Company | E-CHICAGO TITLE, CHICAGO TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,355,420.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Limited Liability Partnership |
| Document Number | 0000110199, |
|---|---|
| Date | Apr 30, 2026 |
| Instrument | 2026110199 |
| Name | BANNER BANK |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 6.22% |
| Initial Type | Adjustable Rate |
| Adjustable | Adjustable Rate Rider |
| Max Rate | -1% |
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | SAN BERNARDINO CA |
| Property Address | 3237 E GUASTI RD, ONTARIO, CA 91761-1241 |
| Document Number | 0000025919 |
| Instrument Date | Jan 18, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Aug 30, 2018 |
| Title Company | CHICAGO TITLE COMPANY |
| Additional |
|
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Document Number | 0000025919 |
|---|---|
| Date | Jan 24, 2018 |
| Instrument | 25919 |
| Name | WELLS FARGO BK |
|---|---|
| Address | 333 S GRAND AVE # 11TH, LOS ANGELES, CA 90071-1504 |
| Amount | Amount Recorded |
|---|
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 | $8,252,514 (+2%) Land $1,785,543 Building $6,466,971 | |
| 2025 | $85,920.00 (+5.19%) | $8,090,700 (+4.04%) Land $1,750,532 Building $6,340,168 |
| 2023 | $81,677.00 (+1.86%) | $7,776,529 Land $1,682,557 Building $6,093,972 |
| 2022 | $80,187.00 |
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| 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 | None beyond ember reach |
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 227 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: AT&T, California Internet, Frontier, Inyo Networks, T-Mobile USA, Ultimate Internet Access.
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