639 E 4th St, Ontario, CA 91764 Property Records

San Bernardino County property record for 639 E 4th St, Ontario, CA 91764

Property Summary

Property TypeSingle Family Home
Details6 bd · 3 ba · 2,205 sqft · built 1923
Lot Size0.2 acres (8,700 sqft)
Owner2 Individual Names on Record
Last Sale$689,000 (May 2022)
Tax Bill$10,026 (2025)
Deeds & MortgagesMay 2022 Sale & Mortgage
Mar 2022 Sale & Mortgage
+ 1 more
Flood ZoneZone X (minimal risk)
APN1047-512-26-0000

Property Details

APN / Parcel Number

Primary APN1047-512-26-0000

Interior

Bedrooms6 Beds
Full Baths3 Baths
Total Rooms9 Rooms
Stories1 Story
Building Area2,205 sqft Living Area
Gross Area2,325 sqft
1st Floor Area2,205 sqft
Basement Area120 sqft
Family RoomFamily Room
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1923
Effective Year BuiltEffective 1930
Architectural StyleConventional
Construction TypeFrame
Roof MaterialComposition Shingle
Lot Area8,700 sqft (0.2 acres)
View / LotAverage
Garage TypeDetached
Garage Area192 sqft

Exterior Amenities

PorchPatio/Porch
Porch Area271 sqft
Patio Area271 sqft
Total Buildings2 Buildings

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address639 E 4TH ST
CityONTARIO
StateCA
Zip91764-2836
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionONTAR1O COLONY LANDS W 60 FT E 278 FT S 145 FT LOT 802
Legal SubdivisionONTARIO COLONY LANDS
Legal Block1
Legal Lot Number802
JurisdictionSAN BERNARDINO CA
Township / Civil DivisionONTARIO
Census Block Group1
Census Block1008
Census Tract1200

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 Individual Names on Record
Mailing Address618 SEFTON AVE, MONTEREY PARK, CA 91755-4148
Owner TypeIndividual
VestingCommunity Property

Deeds, Mortgages & Sale History

DateDocument
May 23, 2022Grant Deed, Transfer · Conventional Mortgage
ACG FUNDING INC
Mar 1, 2022Grant Deed, Transfer · Commercial Mortgage
MERCHANTS FUNDING AZ LLC
Jan 24, 2020Affidavit of Death, Transfer
NOT AVAILABLE

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleMay 23, 2022 · Amount on Record
Deed SaleMay 23, 2022 · Amount on Record
Prior SaleMar 1, 2022 · Amount on Record
Deed Document Number2022189181
Prior Transfer DateJan 21, 2020
Prior Transfer Doc0000027928
Record UpdatedSep 20, 2026

May 2022: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSAN BERNARDINO CA
Recording DateMay 23, 2022
Property Address639 E 4TH ST, ONTARIO, CA 91764-2808
Document Number0000189181
Map ReferenceMB 11 PG 6
Instrument DateMay 13, 2022
Instrument2022-0189181
Transaction TypeTransfer
Record UpdatedJun 17, 2022
Title CompanyWFG NATIONAL TITLE COMPANY/CA, WFG NATIONAL TITLE CO OF CA

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
RelationshipCommunity Property with Right of Survivorship
Address618 SEFTON AVE, MONTEREY PARK, CA 91755-4148

Mortgage

Document Number0000189182
DateMay 23, 2022
Instrument2022-0189182
Lender
NameACG FUNDING INC
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueJun 1, 2052

March 2022: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSAN BERNARDINO CA
Recording DateMar 1, 2022
Property Address639 E 4TH ST, ONTARIO, CA 91764-2808
Document Number0000080479
Map ReferenceMB 11 PG 6
Instrument DateJan 24, 2022
Instrument2022-0080479
Transaction TypeTransfer
Record UpdatedMar 17, 2022
Title CompanyWFG NATIONAL TITLE COMPANY/CA, WFG NATIONAL TITLE CO OF CA

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
Address3524 GREENWOOD AVE, COMMERCE, CA 90040-3319

Mortgage

Document Number0000080480
DateMar 1, 2022
Instrument2022-0080480
Lender
NameMERCHANTS FUNDING AZ LLC
TypeLending Institution
Agreement
TypeCommercial Mortgage
AmountAmount Recorded
Term359 Months
DueFeb 18, 2052

January 2020: Affidavit of Death, Transfer

Document TypeAffidavit of Death
JurisdictionSAN BERNARDINO CA
Recording DateJan 24, 2020
Property Address639 E 4TH ST, ONTARIO, CA 91764-2808
Document Number0000027928
Instrument DateJan 21, 2020
Instrument27928
Transaction TypeTransfer
Record UpdatedFeb 20, 2020
Title CompanyNOT AVAILABLE

Transaction

Tax$0.00
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address639 FAST 4TH ST ONTARIO CA 91764, ONTARIO, CA 91764

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountySan Bernardino County
MunicipalityOntario City
Secondary School DistrictChaffey Joint Union High School District (09 - 12)
Elementary School DistrictOntario-Montclair School District (KG - 08)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$932,027 (+2%) Land $261,028 Building $670,999
2025$10,026.00 (+31.51%)$913,752 (+30.02%) Land $255,910 Building $657,842
2023$7,624.00 (+246.23%)$702,780 Land $245,973 Building $456,807
2022$2,202.00

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

FEMA Flood ZoneZone X
minimal risk
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 RiskNot 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 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 813 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Frontier
Fiber
7,000 / 7,000
Spectrum
Cable
1,000 / 1,000

May also be available: GeoLinks, T-Mobile, Verizon.

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