4025 E Guasti Rd, Ontario, CA 91761 Property Records

San Bernardino County property record for 4025 E Guasti Rd, Ontario, CA 91761

Property Summary

Property Type	Industrial Loft Building
Details	162,784 sqft · built 1982
Lot Size	4.6 acres (200,811 sqft)
Owner	Company Name on Record
Tax Bill	$56,856 (2025)
Flood Zone	Zone X (minimal risk)
APN	`0210-212-17-0000`

Property Details

APN / Parcel Number

Primary APN	`0210-212-17-0000`

Interior

Units	12 Units
Building Area	162,784 sqft Gross Area

Exterior

Year Built	Built 1982
Effective Year Built	Effective 1982
Construction Type	Masonry / Concrete Block
Fire Resistance	Masonry Walls, Wood Interior
Lot Area	200,811 sqft
Total Buildings	5 Buildings

Utilities, Heating & Cooling

Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	4025 E GUASTI RD
City	ONTARIO
State	CA
Zip	91761-1580
Property Category	Industrial
Property Type	Industrial > Industrial Loft Building
Local Zoning Code	M2
Legal Description	PARCEL MAP 4603 PAR NO 1 AND THAT PTN GUASTI RD VAC LYING N OF LI 50 FT N OF AND PARALLEL WITH C/L GUSTIC RD AS DEDICATED ON PARCEL MAP 2704
Legal Block	1
Jurisdiction	SAN BERNARDINO CA
Township / Civil Division	SAN BERNARDINO
Census Block Group	1
Census Block	1013
Census Tract	12700

Owner

Source: San Bernardino County records, as of July 14, 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 Record
Mailing Address	PO BOX 15005, SANTA ANA, CA 92735-0005
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: San Bernardino County assessment roll, as of July 14, 2026

Property Jurisdictions

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)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$5,466,687 (+2%) Land $1,561,911 Building $3,904,776
2025	$56,856.00 (+5.19%)	$5,359,497 (+4.04%) Land $1,531,285 Building $3,828,212
2023	$54,050.00 (+1.86%)	$5,151,382 Land $1,471,824 Building $3,679,558
2022	$53,065.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

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.

Wildfire

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.

Drinking Water

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

Violations Reported to EPA

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.

Internet Providers

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.