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Toronto residential neighbourhoods with tree-lined streets and new infill multiplexes
12 GTA Cities

Multiplex Construction Service Areas Across Toronto and the GTA

We build fourplexes, triplexes, approved-zone sixplexes, conversions and additions in six City of Toronto districts and six neighbouring GTA cities. Toronto lots follow EHON and By-law 569-2013. GTA cities follow their own additional unit rules, and we design to each one.

Toronto Districts

City of Toronto (EHON applies)

Victorian brick houses and a new fourplex on a tree-lined Leslieville street

Central Toronto

Up to 6 units (Toronto and East York District)

Fourplexes, approved-zone sixplexes and heritage conversions on the narrow Victorian and Edwardian lots of the old City of Toronto, from Riverdale and Leslieville to High Park and The Junction.

Riverdale / Leslieville / Danforth Village / High Park / The Junction

 New side-by-side fourplex on a wide North York lot with mature maples

North York

Up to 4 units as-of-right

Ground-up fourplexes and conversions on the wide post-war lots of Willowdale, Lansing, Bathurst Manor and the Yonge corridor, where four units fit without the narrow-lot squeeze.

Willowdale / Lansing / Lawrence Manor / Downsview / Bathurst Manor

 Finished six-unit multiplex on a Scarborough corner lot

Scarborough

Up to 6 units in Ward 23 North, 4 elsewhere

Sixplexes in Ward 23 North, fourplexes and bungalow top-ups across the rest of Scarborough, from Milliken and Agincourt to Cliffcrest and Birch Cliff.

Agincourt / Milliken / Steeles-L'Amoreaux / Bendale / Cliffcrest

 New fourplex on a deep Mimico lot with a garden suite behind

Etobicoke

Up to 4 units as-of-right

Fourplexes, fourplex-plus-garden-suite builds and bungalow conversions on the deep post-war lots of Mimico, New Toronto, Alderwood and The Kingsway.

Mimico / New Toronto / The Kingsway / Humber Bay / Alderwood

 New triplex replacing a wartime house on an East York street

East York

Up to 6 units in Wards 14 and 19, 4 in Ward 15

Sixplexes in Pape Village, Woodbine Heights and Danforth East York, fourplexes in Leaside, and wartime-house rebuilds across the borough, each checked against its ward before design.

Leaside / Pape Village / Woodbine Heights / Danforth East York / Thorncliffe Park

 New triplex on a Mount Dennis street near the Eglinton Crosstown

York

Up to 4 units as-of-right

Triplexes, fourplexes and semi conversions in Weston, Mount Dennis, Oakwood Village and Fairbank, along the Eglinton Crosstown and UP Express corridors.

Weston / Mount Dennis / Oakwood Village / Fairbank / Silverthorn
Greater Toronto Area

GTA Cities (local rules, not EHON)

Woodbridge family home with a new rear addition suite

Vaughan

Up to 3 units (main home + 2 ARUs)

Additional units, rear additions and multigenerational layouts in Woodbridge, Maple, Kleinburg and Thornhill, designed to Vaughan's own rules rather than Toronto's EHON.

Woodbridge / Maple / Thornhill (Vaughan) / Kleinburg / Concord

 Unionville heritage-style home with a discreet rear addition

Markham

Local additional residential unit rules (not EHON)

Additional units, multigenerational layouts and heritage-sensitive additions in Unionville, Markham Village, Cornell and Berczy Village, under the city's own additional residential unit rules.

Unionville / Markham Village / Thornhill (Markham) / Milliken Mills / Cornell

 Richmond Hill home with a separate side entrance to a secondary suite

Richmond Hill

Local secondary suite rules (not EHON)

Secondary suites, two-unit conversions and additions in Oak Ridges, Mill Pond, Bayview Hill and Richvale, under Richmond Hill's own secondary suite framework.

Oak Ridges / Mill Pond / Bayview Hill / Richvale / Elgin Mills

 Port Credit home near the lake with a new rear addition

Mississauga

Up to 4 units (local fourplex rules, 2023)

Additional units, conversions and architectural design in Port Credit, Lorne Park, Streetsville and Cooksville, under Mississauga Zoning By-law 0225-2007.

Port Credit / Lorne Park / Streetsville / Erin Mills / Cooksville

 Brampton home with a new side addition creating a second unit

Brampton

Up to 3 units, each registered

Additional residential units, side and rear additions and legal basement units in Springdale, Bramalea, Heart Lake and Castlemore, under Brampton's own ARU rules.

Downtown Brampton / Bramalea / Heart Lake / Springdale / Mount Pleasant

 Bay Ridges home near Frenchmans Bay with a new walkout suite

Pickering

Up to 3 units (main home + 2 ADUs)

Additional units, conversions and honest feasibility in Bay Ridges, West Shore, Amberlea and Liverpool, under Pickering's own additional unit rules.

Bay Ridges / West Shore / Amberlea / Liverpool / Rougemount
Zoning Note

EHON Applies in Toronto Only

Toronto's Expanding Housing Options in Neighbourhoods program allows up to four units as-of-right citywide, and six only in the Toronto and East York District and Scarborough Ward 23 North. It does not apply in Vaughan, Markham, Richmond Hill, Mississauga, Brampton or Pickering, where each city sets its own additional unit rules.

Read: What is EHON?

Also Serving 20 Near-GTA Municipalities

Outside our 12 core areas we take on feasibility, design and build work in these municipalities. Each runs its own zoning and additional unit rules, and Toronto EHON does not apply in any of them.

  • Oakville
  • Burlington
  • Milton
  • Halton Hills
  • Caledon
  • King Township
  • Aurora
  • Newmarket
  • Whitchurch-Stouffville
  • East Gwillimbury
  • Georgina
  • Uxbridge
  • Ajax
  • Whitby
  • Oshawa
  • Clarington
  • Scugog
  • Bradford West Gwillimbury
  • New Tecumseth
  • Hamilton
Start With Certainty

Not Sure Which Rules Apply to Your Lot?

Send us the address. We confirm the city, district and zoning that apply, then give you an honest unit count and a CAD budget range in writing.

Get a Written Feasibility Assessment
  • Written zoning verification
  • CAD price bands before deposit
  • Licensed Ontario Builder, Insured & Bonded
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