Welcome to this beautifully upgraded, energy-efficient home located in the heart of the highly sought-after Ontario Ranch community. This modern Spanish-style residence, built in 2020 by KB Home, features 4 spacious bedrooms, 3.5 bathrooms, and over 2,500 square feet of thoughtfully designed living space. The flexible floor plan includes a downstairs guest suite with a private bath, perfect for multi-generational living or hosting overnight guests. The open-concept layout seamlessly connects the gourmet kitchen, complete with stainless steel appliances, granite countertops, and a large island, to the expansive living and dining areas, creating the ideal space for entertaining. Upstairs, you’ll find a generous loft, a full laundry room with sink, and a luxurious primary suite featuring a walk-in closet and spa-inspired bath. Modern energy-saving upgrades include solar panels, tankless water heater, spray foam insulation, and dual-pane windows, ensuring year-round comfort and lower utility bills. Smart-home features, and low monthly HOA dues round out the home's value. Close to the 60 and 15 FWY as well as Ontario Airport.
Sold for $820,000 on 08/08/25
Listing Provided by:
Wei Wang DRE #01899920 626-427-5886,
RE/MAX CHAMPIONS
$820,000
3329 S Welsummer Ave, Ontario, CA 91761
4beds
2,543sqft
Single Family Residence
Built in 2020
5,004 Square Feet Lot
$822,800 Zestimate®
$322/sqft
$3,912 Estimated rent
Owner options
What's special
Zillow last checked: 7 hours ago
Listing updated: August 08, 2025 at 04:22pm
Listing Provided by:
Wei Wang DRE #01899920 626-427-5886,
RE/MAX CHAMPIONS
Bought with:
CHERRY WONG, DRE #01893349
COLDWELL BANKER DYNASTY/TC
Source: CRMLS,MLS#: CV25147988
Originating MLS: California Regional MLS

Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 4
- Full bathrooms: 3
- 1/2 bathrooms: 1
- Main level bathrooms: 2
- Main level bedrooms: 1
Primary bedroom
- Features: Main Level Primary
Bedroom
- Features: All Bedrooms Up
Bedroom
- Features: Bedroom on Main Level
Kitchen
- Features: Granite Counters, Kitchen Island, Kitchen/Family Room Combo, Self-closing Drawers, Walk-In Pantry
Heating
- Central
Cooling
- Central Air
Appliances
- Laundry: Laundry Room, Upper Level
Features
- All Bedrooms Up, Bedroom on Main Level, Loft, Main Level Primary, Walk-In Closet(s)
- Flooring: Wood
- Has fireplace: No
- Fireplace features: None
- Common walls with other units/homes: No Common Walls
Interior area
- Total interior livable area: 2,543 sqft
Property
Parking
- Total spaces: 2
- Parking features: Garage - Attached
- Attached garage spaces: 2
Features
- Levels: Two
- Stories: 2
- Entry location: Front Door
- Pool features: None
- Has view: Yes
- View description: None
Lot
- Size: 5,004 sqft
- Features: 0-1 Unit/Acre
Details
- Parcel number: 0218546450000
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Condition
- New construction: No
- Year built: 2020
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Electricity Available, Natural Gas Available, Sewer Available, Water Available
Community & neighborhood
Community
- Community features: Park, Sidewalks
Location
- Region: Ontario
HOA & financial
HOA
- Has HOA: Yes
- HOA fee: $88 monthly
- Amenities included: Other
- Association name: Countryside
- Association phone: 949-833-2600
Other
Other facts
- Listing terms: Cash,Conventional
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Estimated market value
$822,800