What Toronto's multiplex rules let you build, as-of-right.
Up to four units (a fourplex) on most residential lots city-wide, or up to six in the nine EHON pilot wards, plus a garden suite on deep lots. Major-street lots can support more.
No. A fourplex is permitted as-of-right on most residential lots, so no rezoning or minor variance is required for the unit count itself.
A multiplex is a low-rise building with multiple self-contained units on a single residential lot — a duplex, triplex, fourplex, or up to a sixplex in the pilot wards.
A fourplex has four units (allowed city-wide); a sixplex has six (allowed as-of-right only in the nine EHON pilot wards).
Most residential lots qualify, but specifics like heritage designations, ravine protection or unusual zoning can affect a particular lot. Check the lot on the map and confirm with the City.
Yes — units in a multiplex can be on any level, including the basement, as long as each is a self-contained dwelling meeting the building code.
Yes — the permissions apply across the old City of Toronto, North York, Scarborough, Etobicoke, York and East York.
Adding units and value typically affects assessment and taxes. MPAC reassesses the property; budget for higher taxes in your operating costs.
As-of-right unit potential shown here is a planning guide generated from Toronto's multiplex and Expanding Housing Options in Neighbourhoods (EHON) permissions, not legal advice. Always confirm what a specific lot allows with the City of Toronto or a qualified planner before purchasing or designing.
