Ontario (686) Homes with Duplex Subtype

Welcome to Ontario, California, a vibrant city nestled in the heart of San Bernardino County. Known for its rich history and diverse culture, Ontario offers a unique blend of urban conveniences and suburban charm. With its sunny climate and beautiful landscapes, this city is an ideal place for families, professionals, and retirees alike.

One of the standout features of Ontario's real estate market is the availability of duplex homes. These properties are a fantastic option for those looking to invest in a multi-family living arrangement or simply seeking additional rental income. Duplexes in Ontario provide the perfect balance of privacy and community, allowing homeowners to enjoy their own space while also having the potential to rent out the second unit.

Duplex homes in Ontario come in various styles and sizes, catering to different preferences and budgets. Many of these properties boast modern amenities, spacious layouts, and beautifully landscaped yards. Living in a duplex not only offers the benefit of additional income but also fosters a sense of community, as you’ll likely forge close relationships with your neighbors.

Ontario is also conveniently located near major highways, making it easy to access nearby cities and attractions. With a plethora of shopping, dining, and recreational options, residents can enjoy a fulfilling lifestyle without ever venturing too far from home.

Whether you’re looking to invest or find your dream home, Ontario’s duplexes present a unique opportunity in a thriving community. Discover the charm and potential of Ontario, CA, and make it your next home sweet home!

Newest Ontario (686) Homes with Duplex Subtype

$599,000

CV26168235 MLS ⋅ Active Status

Investor's Dream in the Heart of Ontario! This well-maintained duplex features two detached units on a spacious 9,653 SF lot, offering exceptional income potential and future development opportunities. The front unit offers 2 bedrooms and 1 bathroom, while the back unit features 1 bedroom and 1 bathroom. Both units are in excellent condition, requiring little to no immediate maintenance, making this a true turnkey investment. The property is occupied by reliable long-term tenants, generating strong and stable rental income with an attractive rate of return. The oversized lot provides excellent potential to expand the existing improvements, add ADUs (buyer to verify), or maximize future value. Conveniently located near schools, shopping, dining, and just minutes from the 10 Freeway, this property offers both immediate cash flow and long-term appreciation potential. Whether you're an investor looking for solid returns or an owner-occupant seeking rental income, this is a rare opportunity you won't want to miss.

939 E D Street, Ontario

$790,000

4 Beds ⋅ 2 Baths ⋅ IG26159735 MLS ⋅ Active Status

Fantastic duplex opportunity in the heart of Ontario! This well-maintained income property features two separate 2-bedroom, 1-bathroom units, each with its own private 2-car garage. The exterior of the property and roof were updated approximately five years ago, and the exterior trim was freshly painted in 2025. Situated on a spacious lot, this property offers excellent investment potential or the opportunity to live in one unit while generating rental income from the other. Conveniently located near schools, parks, shopping, dining, major freeways, and Ontario International Airport. Property is being sold AS IS.

329 E Belmont, Ontario

$975,000

CV26143485 MLS ⋅ Active Under Contract Status

Excellent investor opportunity. New interior paint, gleaming wood floors, Original 1915 Craftsman features include built-in wood hutches, hand crafted door casings, beamed ceilings, and modernized kitchens. Each unit has an updated electrical panel. Each unit has its own laundry area. You can attract uniquely high rent due to a uniquely vintage home and location. Or live in one and rent the other, or use for extended family or inlaws. This isn't simply a duplex—it's a lifestyle rooted in history, craftsmanship, and the kind of character that can never be replicated. Built in 1915, this remarkable Craftsman Bungalow stands proudly on an expansive corner lot, offering over 2,900 square feet of architectural charm and endless opportunity. Thoughtfully configured into two complete yet attached residences, this property offers flexibility for today's lifestyles. The main residence features four bedrooms, one-and-a-half bathrooms. The second residence offers three bedrooms, one bathroom, making it an ideal space for extended family, guests, or rental income. Whether you dream of living in one home while generating income from the other, creating the perfect multi-generational living arrangement or looking for passive income, this may be it. Each residence enjoys its own welcoming front porch, framed by the classic square river rock columns that define the enduring appeal of early 20th-century Craftsman architecture. Private rear yards offer peaceful outdoor retreats for gardening and entertaining. There is generous garage space—featuring a four-car tandem garage for the main residence and a two-car tandem garage for the second unit. Each home has its own gas ane electric metering! Come experience the warmth, character, and endless possibilities of this extraordinary Craftsman on historic Euclid Avenue.

836 N Euclid Ave Avenue N, Ontario

$799,000

IG26115051 MLS ⋅ Active Status

Rare opportunity to own an Inland Empire duplex in the heart of Ontario! This charming 1915 two-story craftsman features two units — each with 2 bedrooms and 1 bathroom. The upper unit has been completely remodeled featuring brand new cabinetry, quartz countertops, stainless steel appliances including gas range and refrigerator, and a beautifully remodeled bathroom. Fresh paint and a newer roof complete this move-in ready home. The property boasts a massive backyard with tremendous potential for future customization, a permitted rear garage, extensive parking for up to 6 vehicles, and gated access providing separation and privacy between units. Mature trees and landscaping add to the charm of this classic craftsman. Conveniently located on Holt Boulevard with easy access to the 10 and 60 freeways, shopping, dining, and employment corridors.

745 E Holt, Ontario

$625,000

3 Beds ⋅ 2 Baths ⋅ SB26073575 MLS ⋅ Active Status

Back on the Market! Incredible opportunity for investors or even first time buyers needing more space or looking for additional rental income. This wonderful CORNER LOT DUPLEX is located in the heart of the city of Ontario. The front unit consists of 2 bedrooms and 1 bathroom with a full kitchen, laundry area and fireplace. The back unit is a 1 bedroom 1 bathroom home also equipped with a full kitchen and laundry area. Don't miss out on this spectacular opportunity!!!!

620 W D, Ontario

$819,000

4 Beds ⋅ 2 Baths ⋅ IV26038341 MLS ⋅ Active Status

Spacious duplex, each unit features 2 bedrooms and 1 bath however each unit has an additional room not registered. Front unit has a single including a bathroom with shower, second unit has a bonus room only. Location! Location! Location! Welcome to 5383 Howard St, Ontario, CA 91762 —Situated in a very nice area of Ontario. Centrally located multifamily duplex offering versatility for both families and investors. Each unit features 1 car garage with decent size backyard for fun days in the summer, comfortable layouts ideal for long-term living or strong rental performance. Whether you’re looking to live in one unit and rent the other, accommodate extended family, or expand your investment portfolio, this property provides flexibility and income potential. Don't miss out! come and see it. Situated in an established residential neighborhood, the home is conveniently located near Mission Elementary School, Oaks Middle School, and Ontario High School, adding appeal for families seeking nearby educational options. Residents will enjoy close proximity to shopping, dining, and entertainment at Ontario Mills, as well as everyday conveniences including Walmart Supercenter - 1333 N Mountain Ave. Easy access to major freeways provides convenient commuting throughout the Inland Empire and beyond. With strong rental demand, practical floor plans, and a prime location, this duplex presents an excellent opportunity for both owner-occupants and investors seeking long-term value and steady income potential.

5383 Howard, Ontario

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Based on information from California Regional Multiple Listing Service, Inc. as of . 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. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.