Multiplex development in Toronto — duplex, triplex & fourplex.
We turn ordinary Toronto lots into multi-unit rental buildings — designed, permitted and built to generate cashflow. One property, several rents, real long-term equity.
Book a free feasibility callWhat is a multiplex?
A multiplex is a residential building with multiple self-contained units on a single lot — most commonly a duplex (2 units), triplex (3 units) or fourplex (4 units). For a homeowner or investor in Toronto, a multiplex is one of the most direct ways to turn a single property into several streams of rental income while building equity through new construction.
As of Toronto’s multiplex zoning changes, up to four units are permitted as-of-right on most residential lots — no rezoning required, subject to standard zoning and building requirements. That has made the fourplex one of the most compelling small-scale developments in the city.
The paths to a Toronto multiplex
New-build multiplex
Replace an older or lower-value home with a purpose-built duplex, triplex or fourplex designed to maximize rentable units and cashflow.
House-to-multiplex conversion
Convert an existing house into legal multiple units — often the fastest route to rental income where the structure allows.
Add a garden or laneway suite
Keep your home and add a self-contained rental unit at the rear, boosting income with a smaller build.
What makes a good multiplex lot?
Not every property delivers the same return. In a free feasibility review we look at:
- Lot size, frontage and configuration — how many units it can comfortably support
- Zoning, setbacks, height and parking requirements for your specific address
- The likely unit mix and rents your neighbourhood commands
- Hard and soft costs, financing, and the projected monthly cashflow and return
You get a clear, numbers-first picture of what your lot can become before you spend a dollar on design.
What it costs and how long it takes
Every project is different, but here are realistic planning ranges for the Toronto market. In your free feasibility review we replace these with exact numbers for your address.
New multiplex build
A purpose-built duplex, triplex or fourplex.
Converting an existing home
Reusing the existing structure where it works.
Typical timeline
Design 2–4 mo · permits 1–2 mo · build 8–12 mo (conversion) to 12–24 mo (new build).
Toronto’s fourplex incentives make the numbers work
Recent City of Toronto policy changes have made multiplex development far more attractive:
- Up to four units as-of-right on most residential lots — no lengthy rezoning.
- Development charges waived on multiplex conversions of up to four units — often tens of thousands in savings.
- Minimum parking requirements removed across much of the city, unlocking lots that used to be unviable.
Programs and rules change over time, so we confirm exactly which incentives apply to your project as part of the feasibility review. For unit limits, the sixplex wards, zoning standards and a full glossary, see the Toronto Multiplex Guide.
Where we build multiplexes
Local rules and rents differ by municipality — see what multiplex development looks like where your property is:
Ready to see what your lot can support?
Serving Toronto, Etobicoke, North York, Scarborough and the wider GTA.
Book a free feasibility call