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1428 South Helen Avenue, Ontario, CA 91762

$1.20M5bd · 3ba · 2,643 sqft
Lot 17,976 sqft•Single Family Residence•
Active
•61d on market•MLS# TR-26193119

Property Description

Welcome to this beautifully remodeled two-story home situated on an expansive 17,976 sq. ft. lot in one of Ontario’s desirable neighborhoods. Offering 5 bedrooms, 3 bathrooms, and approximately 2,643 sq. ft. of living space, this move-in-ready residence blends modern updates with exceptional flexibility and future potential. The inviting interior features soaring ceilings, abundant natural light, an updated kitchen and bathrooms, upgraded flooring, modern lighting, plantation shutters, and fresh finishes throughout. The main level offers a formal living room and family room, both with fireplaces, dining area, office/flex space that may accommodate a fifth bedroom, full bathroom, and laundry room. Upstairs are four spacious bedrooms and two additional bathrooms. Outside, the oversized lot provides ample room for RV parking, an ADU, future expansion, or a resort-style backyard—buyer to verify. Additional highlights include a fully paid solar system, spacious 3-car garage, and generous driveway parking. Conveniently located near schools, parks, shopping, dining, and major freeways, this property offers the space, comfort, and versatility to meet a variety of lifestyles.

Features & Amenities

FeeBuilt 1991

Property Details

Land Type
Fee
Year Built
1991
Property Type
Residential
Property Subtype
Single Family Residence
Parking Spaces
3
Garage Spaces
3
Heating
Central
Cooling
Central Air
View
None
City
Ontario
Zip Code
91762
County
San Bernardino
Listed byKeller Williams Riverside, James Quach

Mortgage Calculator

Current Rates

$
$
%
Monthly Payment
$6,057.74
Principal & Interest
Loan Amount
$958,400
Total Interest
$1,222,386
Total Payment Over 30 Years
$2,180,786
This calculator provides estimates only. Actual mortgage payments may include taxes, insurance, HOA fees, and PMI. Contact a lender for accurate quotes.

Comparative Market Analysis

Residential Tier · 5 active · 5 closed

1428 South Helen Avenue, Ontario, CA 91762

Ontario · Single Family Residence

$1.20M
Residential Tier
Beds
5
Baths
3
Sqft
2,643
Lot
17,976 sqft
Year
1991
$/Sqft
$453
Pool: No✓
View: None✓
Garage: 3-car✓

Listed in line with the median closed sale of $1,225,000. Closed comps sold at 101% of list — strong seller's market.

Price Position

Aligned with the market — fair pricing for the comps.

At market
Subject listed at $1.20M· $453/sqft
Total list price
Closed comps
vs closed median $1.23M
−$27K (−2.2%)
Active comps
vs active median $1.23M
−$31K (−2.5%)
Price per sqft
Closed compsinsufficient comp data
Active comps
vs active avg $/sqft $512
−$59 (−11.6%)

Active Properties (5)

Active Comparables

AddressCityYearBDBTHSqFtLotSzLP/SqFtLPDIMScore
1510 OaksOntario1981432,55418,080$481$1.23M2583
1140 FrancisOntario1981422,08017,000$505$1.05M583
4623 Granville StreetChino2025433,0308,064$445$1.35M3770
4670 Avondale CourtChino2025543,1207,861$439$1.37M1969
1355 Philadelphia StreetOntario1957331,73617,020$691$1.20M1762
Total: 5 · Average4.03.02,50413,605$512.2$1.24M20.6
Median2,554$1.23M

Closed Properties (5)

Closed Comparables

AddressCityYearDateBDBTHSqFtLotSzLPSPSP/SqFtSP/LPDIMScore
1315 JasmineOntario199102/02/2026532,78419,131$1.20M$1.18M$4240.982093
1701 ElderberryOntario199608/31/2026442,98421,797$1.25M$1.23M$4120.986784
1453 Maple CourtOntario197805/19/2026321,75017,480$1.08M$1.17M$6691.083279
1725 ElderberryOntario199605/08/2026332,67221,108$1.25M$1.23M$4580.985276
1664 ElderberryOntario199506/25/2026433,08024,000$1.30M$1.35M$4381.045174
Total: 5 · Average3.83.02,65420,703.2$1.23M$1.23M$480.2—44.4
Median2,784$1.23M$1.23M

Market Analysis

List vs Sale $/SqFt

Sale Price Trend

Days on Market

Sale vs List Price

AI-generated CMA

This analysis was generated automatically from MLS data. For an in-depth, human-reviewed valuation, contact Joseph Sardella at josephsardella@gmail.com.