Posted on Feb 04, 2026
What Do Duplexes, Triplexes, and Fourplexes Look Like in Ontario?
Ontario’s real estate market is known for its variety, with residential properties catering to different needs, preferences, and lifestyles. Among the multi-unit dwellings, duplexes, triplexes, and fourplexes are particularly popular for investors and homeowners looking for income-generating properties or more spacious living options.
But what do these multi-unit properties actually look like in Ontario? Here’s a breakdown of the typical design and features of each:
Duplex (2 Units)
A duplex in Ontario typically refers to a building with two separate living units, either stacked one on top of the other or side-by-side. These properties are perfect for homeowners who want to live in one unit and rent out the other for extra income.
- Side-by-side duplexes resemble semi-detached homes, with each unit occupying one side of the structure. The units often share a wall but have separate entrances, parking spaces, and yards.
- Stacked duplexes have one unit on the main floor and another unit above it. These units share a common structure but are entirely self-contained with separate entrances, and often include private outdoor space.
Design Features:
- Separate utilities for each unit (heating, water, electricity)
- Private entrances, often with separate driveways or parking spaces
- Often found in suburban neighborhoods or in city areas zoned for multi-unit use
Triplex (3 Units)
A triplex is a building with three separate living units, typically in a vertical stacking configuration. These properties are a common choice for investors looking for a mix of rental income and flexibility.
- In many cases, a triplex will have one unit on each floor of a building. The ground floor is often a larger, more spacious unit, while the upper floors contain smaller apartments.
- In some cases, triplexes can also be side-by-side, with three distinct units sharing walls but each having its own entrance.
Design Features:
- Three separate living spaces with private entrances
- Common areas like shared parking lots or driveways
- Outdoor spaces may be shared or separate, depending on the design
Fourplex (4 Units)
A fourplex is a multi-unit building with four separate units, often with a design similar to a townhouse or apartment complex. The fourplex is a highly sought-after property type, especially for investors looking to maximize rental income.
- Vertical fourplexes typically consist of two units per floor, while side-by-side fourplexes might feature two separate buildings with two units each.
- Some fourplexes offer a townhouse-style arrangement with units stacked one on top of the other and individual entrances, while others are designed as larger homes divided into four self-contained spaces.
Design Features:
- Each unit has its own private entrance, often through a shared hallway or porch
- Shared or separate parking spaces, depending on location
- Larger outdoor spaces for tenants, sometimes with a communal area or separate gardens for each unit
Why Choose a Duplex, Triplex, or Fourplex?
- Rental Income: These properties offer a great opportunity for investors, with rental income potential from multiple units.
- Affordability: Buying a multi-unit property may allow for greater affordability, as rental income can offset mortgage payments.
- Flexibility: Live in one unit while renting out the others, or choose to rent all units for maximum return on investment.
- Community: These properties are often located in family-friendly neighborhoods, making them ideal for those who value a sense of community.
Find Your Ideal Multi-Unit Property in Ontario
If you’re looking for a duplex, triplex, or fourplex in Ontario, our team of expert real estate agents is here to help. With an in-depth understanding of the Ontario market, we can guide you through the process of finding the right investment property. Whether you’re new to multi-family homes or a seasoned investor, we’ll ensure you make an informed decision.
Contact us for more information