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537 E Deerfield St, Ontario, CA 91761 Property Records

San Bernardino County property record for 537 E Deerfield St, Ontario, CA 91761

Property Summary

Property TypeSingle Family Home
Details4 bd · 2.5 ba · 2,036 sqft · built 2000
Lot Size0.194 acres (8,442 sqft)
Owner2 Company Names on Record
Last Sale$815,000 (Feb 2024)
Tax Bill$9,251 (2025)
Deeds & MortgagesFeb 2024 Sale & Mortgage
Flood ZoneZone D (undetermined)
APN1051-531-25-0000

Property Details

APN / Parcel Number

Primary APN1051-531-25-0000

Interior

Bedrooms4 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Total Rooms8 Rooms
Stories2 Stories
Building Area2,036 sqft Living Area
Gross Area2,637 sqft
1st Floor Area1,130 sqft
2nd Floor Area906 sqft
Family RoomFamily Room
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 2000
Effective Year BuiltEffective 2000
Architectural StyleModern
Construction TypeFrame
Roof MaterialTile
Lot Area8,442 sqft (0.194 acres)
Garage TypeAttached
Garage Area601 sqft
Parking Spaces2 Parking Spaces
PorchPatio/Porch
Porch Area362 sqft
Patio Area362 sqft

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address537 E DEERFIELD ST
CityONTARIO
StateCA
Zip91761-8730
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionTRACT 15925 LOT 17 BOOK 274 PAGE 81
Legal Subdivision274M81
Legal Tract15925
Legal Block3
Legal Lot Number17
JurisdictionSAN BERNARDINO CA
Township / Civil DivisionONTARIO
Census Block Group3
Census Block3003
Census Tract1804

Owner

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 Record2 Company Names on Record
Mailing Address537 E DEERFIELD ST, ONTARIO, CA 91761-8730
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust, Revocable Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleFeb 21, 2024 · Amount on Record
Deed SaleFeb 21, 2024 · Amount on Record
Prior SaleDec 22, 1999 · Amount on Record
Deed Document Number202441282
Prior Transfer DateMay 12, 2005
Prior Transfer Doc0000517831
Record UpdatedOct 29, 2026

February 2024: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSAN BERNARDINO CA
Recording DateFeb 21, 2024
Property Address537 E DEERFIELD ST, ONTARIO, CA 91761-8730
Document Number0000041282
Map ReferenceMB 274 PG 81-83
Instrument DateFeb 1, 2024
Instrument2024-0041282
Transaction TypeTransfer
Record UpdatedMar 4, 2024
Title CompanyFIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address537 E DEERFIELD ST, ONTARIO, CA 91761-8730

Mortgage

Document Number0000041283
DateFeb 21, 2024
Instrument2024-0041283
Lender
NameCATHAY BANK
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueMar 1, 2054
Interest
Rate TypeAdjustable Rate
Rate7.12%
Type Change DateMar 1, 2027
Change FrequencyAnnually
Min Rate At Change2.75%
Max Rate At Change13.1%
Index1-Year T-Bill
Max Rate13.1%

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountySan Bernardino County
MunicipalityOntario City
Unified School DistrictChino Valley Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$847,926 (+2%) Land $296,514 Building $551,412
2025$9,251.00 (+162.07%)$831,300 (+159.32%) Land $290,700 Building $540,600
2023$3,530.00 (+0.6%)$320,575 Land $116,708 Building $203,867
2022$3,509.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 2026

FEMA Flood ZoneZone D
undetermined · not studied
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 98% of the US · lower than 98.4% of California
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond 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 SystemONTARIO MUNICIPAL UTILITIES COMPANY
serves 185,010 people · EPA ID CA3610034
Water SourcePurchased surface water from several systems
Last State InspectionJul 2025
LeadUnder 1 ppb (2022–2024)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 438 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Frontier
Fiber		7,000 / 7,000
Spectrum
Cable · Fiber in parts of the area		1,000 / 1,000
Verizon
Fixed Wireless		300 / 20
Starlink
Satellite		280 / 30

May also be available: AT&T, GeoLinks, T-Mobile.

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