Ontario · Duplex, Triplex & Fourplex
Duplexes, Triplexes & Fourplexes for Sale in Ontario, CA
There are 5 duplex, triplex & fourplex on the market in Ontario right now, 4 of them active or coming soon. List prices run from $625,000 to $1,180,000 with a median of $765,000, and the typical home offers about 1,548 square feet on a 7,152 square-foot lot. Most sit in ZIP 91762, 91764, 91761. Every listing comes straight from the California Regional MLS and refreshes every 15 minutes; use the filters to narrow by price, beds, home type or status, or switch to the map.
Based on information from California Regional Multiple Listing Service, Inc. as of September 4, 2026 at 11:15 pm. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. The Listing Agent and Listing Office are identified on each home. Presented by Duri Hussain, Realtor® (DRE# 02234095), Real Brokerage Technologies (DRE# 02022092).
How we identify these homes
The MLS property subtype is Duplex, Triplex or Quadruplex. Income, expenses and unit counts are as reported by the listing agent; buyer to verify.
Questions buyers ask
Can I live in one unit?
Yes; owner-occupied 2–4 unit purchases qualify for residential financing, including FHA with 3.5% down in many cases.
Where are the plexes?
Pomona, Ontario and La Verne carry most small multi-family inventory.
Does Duri work with investors?
Yes; she runs numbers with MAD Realty Co. on rentals and flips.
Ask Duri Hussain — buyer’s agent, not the listing agent
Want to see any of these in person?
Duri tours any home on the market with you, pulls the sold comparables, and negotiates on your side. Real Brokerage Technologies · DRE# 02234095.
