Mississauga · Garden Suite Construction
Garden Suite Construction in Mississauga
Mississauga hands homeowners two free pre-approved garden suite plans, a 40 m² studio and a 55 m² one-bedroom, and refunds the building permit fee once the suite passes final inspection. Larger lots can go to two storeys. On narrow Malton and Cooksville lots, the 1.2 m fire access path decides whether a suite is possible at all.
Garden Suites in Mississauga
What’s different in Mississauga
| Permit office | City of Mississauga Building Division (official site, opens in a new tab) |
|---|---|
| Units per lot | One garden suite per detached, semi or townhouse lot, as one of up to two additional units. |
| Fire access path | At least 1.2 m wide and 2.1 m high, within 45 m of the street. |
| Setbacks | Pre-approved designs list 1.8 m to the rear line, 0.6 m to an interior side and 2.5 m to a street side. |
| Private trees | Any tree of 15 cm or more needs a permit to injure or remove. |
| Address | The suite gets its own municipal address for a small fee. |
| Development charges | ARU development charge rules are confirmed with the City at the permit stage. |
Worth knowing first
Gates, heat pumps and meters can block the fire path
The 1.2 m by 2.1 m route decides many Mississauga garden suites, and the house is not always what blocks it. Gates, fences, heat pumps and gas meters in the side yard all count. Wide, deep lots in Mineola, Lorne Park, Clarkson and Erindale meet the path easily. Smaller post-war and 1970s lots in Malton are different. The driveway takes one side, and the other side yard may be under 1.2 m. We measure the route with you on site before anything is drawn. Helical piles can also keep a suite clear of a mature tree's root zone.
The scope, pricing tiers and 5-step process are the same everywhere we work. See Garden Suite Construction ›
Frequently asked questions
Garden Suites in Mississauga: three local questions
Yes. You still apply for a building permit with a site plan and grading plan, but most design review is done. Siding, windows, doors and flooring can change. Structure cannot. We price the 40 m² or 55 m² plan from its materials list and confirm your setbacks. The plans don't cover servicing, so we design the water, sewer and hydro runs from your house to the suite.
Only if it exceeds about 750 m² (about 8,070 sq ft), the threshold Mississauga's zoning uses for larger, taller detached units. Many Mineola, Lorne Park and Clarkson lots qualify. Most Meadowvale and Churchill Meadows lots do not and are limited to one storey. Lot shape matters too, because setbacks still apply. Bring a recent survey to the site visit and we will confirm which rules apply.
Through the main house's water service and sanitary lateral, with a new line trenched to the backyard. The Region of Peel reviews whether the existing service is large enough. An old 12 mm (½ in) water line or a clay sewer lateral may need replacing to the street, which can add $15,000 to $35,000. On deep south-end lots the trench can exceed 40 m.
Garden Suites In Mississauga? Let’s Talk.
Book a free site visit. You'll get a written, itemised quote and a straight answer on permits and timing.
Financing available through Financeit. See options