323 E Ralston St, Ontario, CA 91761 Property Records

San Bernardino County property record for 323 E Ralston St, Ontario, CA 91761

Property Summary

Property Type	Duplex
Details	2 bd · 2 ba · 2,034 sqft · built 1981
Lot Size	0.142 acres (6,200 sqft)
Owner	Individual Name on Record
Last Sale	$590,000 (Jan 2021)
Tax Bill	$6,937 (2025)
Deeds & Mortgages	Jan 2021 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1049-513-28-0000`

Property Details

APN / Parcel Number

Primary APN	`1049-513-28-0000`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Units	2 Units
Building Area	2,034 sqft Total Area

Exterior

Year Built	Built 1981
Effective Year Built	Effective 1981
Architectural Style	Duplex Single
Construction Type	Wood
Lot Area	6,200 sqft (0.142 acres)
Lot Dimensions	155 ft deep x 40 ft wide

Utilities, Heating & Cooling

Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	323 E RALSTON ST, A
City	ONTARIO
State	CA
Zip	91761-3354
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Description	HASTINGS AND HEYDENS SUB LOT 22 BLK 147
Legal Subdivision	HASTINGS & HEYDENS SUBDIVISION
Legal Block	147
Legal Lot Number	22
Jurisdiction	SAN BERNARDINO CA
Township / Civil Division	ONTARIO
Census Block Group	3
Census Block	3008
Census Tract	1813

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 Record	Individual Name on Record
Mailing Address	323 E RALSTON ST, ONTARIO, CA 91761-3354
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Sole Owner

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jan 29, 2021 · Amount on Record
Deed Sale	Jan 29, 2021 · Amount on Record
Prior Sale	Feb 28, 2012 · Amount on Record
Deed Document Number	202145605
Prior Transfer Date	May 18, 2016
Prior Transfer Doc	0000200970
Record Updated	Sep 20, 2026

January 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN BERNARDINO CA
Recording Date	Jan 29, 2021
Property Address	323 E RALSTON ST, ONTARIO, CA 91761-3354
Document Number	0000045605
Instrument Date	Dec 2, 2020
Instrument	45605
Transaction Type	Transfer
Record Updated	Feb 15, 2021
Title Company	NORTH AMERICAN TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$649.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	323 E RALSTON ST ONTARIO CA 917613354, ONTARIO, CA 91761-3354

Mortgage

Document Number	45606
Date	Jan 29, 2021
Instrument	45606

Lender

Name	THELENDER
Address	LAKE FOREST, CA 92630

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jan 28, 2051

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	Ontario-Montclair School District (KG - 08)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$651,407 (+2%) Land $198,734 Building $452,673
2025	$6,937.00 (+5.33%) Homeowner's exemption	$638,634 (+4.04%) Land $194,837 Building $443,797
2023	$6,586.00 (+1.35%) Homeowner's exemption	$613,836 Land $187,272 Building $426,564
2022	$6,498.00

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 Zone	Zone X minimal risk
Flood Insurance Requirement	Not 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 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 618 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Spectrum Cable	1,000 / 1,000
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: GeoLinks, Verizon.

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