Toronto allows a sixplex — six units as-of-right — in nine Expanding Housing Options in Neighbourhoods pilot wards. Here's the full list and the lots for sale in each.

Sample of lots for sale across Toronto.
As-of-right six-unit multiplexes are currently limited to these wards. Open any ward for its available lots and unit potential:
Parkdale-High Park, Davenport, Spadina-Fort York, University-Rosedale, Toronto-St. Paul's, Toronto Centre, Toronto-Danforth, Beaches-East York, Scarborough North
Outside the pilot wards, most residential lots still allow a fourplex (four units) as-of-right, plus a garden suite on deeper lots. Check any lot on the map →
The nine EHON pilot wards: Parkdale-High Park, Davenport, Spadina-Fort York, University-Rosedale, Toronto-St. Paul's, Toronto Centre, Toronto-Danforth, Beaches-East York, Scarborough North.
Not as-of-right — outside the pilot wards the multiplex limit is four units, though a garden suite or a major-street location can add more.
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.