Garden suites Toronto. The backyard is the test, not the lane.

What is a garden suite in Toronto

A garden suite in Toronto is a detached backyard home with its own kitchen, bathroom, and entrance, on the same lot as the house, on its own footings. It is not a basement apartment and not a converted garage. If the lot abuts a public laneway, the City treats that building as a laneway suite, with different setbacks, and the lot takes one or the other, not both. Toronto's free 2025 studio and two-bedroom plans skip re-review of the building design. They do not skip the building permit.

If the rear or side lot line hits a public lane, you are usually on laneway suite rules, not this page. A lot takes a garden suite or a laneway suite, not both.

What you can actually build here

Toronto Building publishes free "Made in Toronto" pre-approved garden plans — studio and two-bedroom — with heat-pump or forced-air options and three fire-access configurations. The building design has already been reviewed for the Ontario Building Code and zoning. You still apply for a building permit. Reviewers look at how the building sits on your lot.

Finishes — siding, windows, doors, flooring — can change. Layout cannot, or you leave the certified-plan path.

See the drawings: Pre-approved plans.

Custom is available when the lot will not take a catalogue plan. Same team. Longer review.

These are garden plans, not laneway plans. If you have a public lane, use laneway suites in Toronto.

The lot rules that stop a build

These are the numbers that matter before anyone talks finishes. From Toronto's pre-approved plan notes and Zoning By-law 569-2013 (as amended, including By-law 849-2025):

• Rear setback: 1.5 m. On lots deeper than 45 m, the greater of 1.5 m or half the suite height.
• Separation from the main house: 4.0 m if the suite is no taller than 4.0 m; 7.5 m if it is taller. Measured main wall to main wall. See plans.
• Side setback: if the side lot line does not abut a street and the wall has openings, the greater of 1.5 m and a share of the lot frontage, to a maximum of 3.0 m. Corner lots have their own rule — we confirm on the survey.
• Fire path: 1.0 m wide × 2.1 m high to the suite door if the suite is not sprinklered; 0.9 m × 2.1 m if it is. Hydro and gas meters may project into the path.
• Travel distance: ≤ 45 m from a public street is the clean path. 45–90 m needs extra fire-safety measures the City accepts (sprinkler + exterior strobe + interconnected alarms, or upgraded construction + strobe + alarms). Over 90 m is usually not permitted.
• Shared path: a Limiting Distance Agreement with a neighbour can make up width. It does not guarantee a permit.
• One detached suite type per lot. Garden or laneway, not both.

Fire access and trees stop more Toronto garden jobs than zoning does. A deep lot that looks "perfect" on a listing often fails the 45 m test.

Instant zoning, then a real lot check

Type a Toronto address on the feasibility page. We pull the zone code from the City map and tell you, in plain English, whether a garden suite is on the table. No email to see that result.

The map is not the build. Setbacks, the 4 m house separation, fire access, servicing, and trees still have to fit. After the zone code, we run the lot quiz and, if it still holds, a free site assessment.

Oakville, Brampton, and Burlington do not get an instant zone code on this tool. This page is Toronto only.

Two ways to build

Same accountable team. Same finish standard.

Full custom — foundation-up on your lot. Typical 9–14 months. Best for irregular lots, heritage conditions, and a house you want the suite to match.

Modular crane-in — we pour the slab and run utilities while the unit is built on a factory floor. Typical 5–8 months. One crane day. Crane access from the street or a neighbouring yard has to work; we will tell you if the pick does not work before you pay for a module.

We do not pass stock photos off as completed Modular X jobs. Factory and jobsite footage is the record.

What it costs (illustrative)

A typical one-bed turnkey, including permits, is illustrated around $310,000. That is not a quote. Lot, servicing, trees, fire-access extras, and finish level move the number.

Toronto's Development Charge deferral for eligible rear-yard secondary dwellings can defer DCs (typically up to 20 years from permit). It is a deferral, not a grant. A title restriction is part of the paperwork.

Toronto does not refund the building permit fee the way Mississauga does. Confirm current fees on the City schedule at application.

More range: How much a garden suite costs in Toronto (2026).

Permits, without the theatre

1. Confirm there is no public lane, and pull the zone code
2. Measure fire path, house separation, and trees
3. Choose a 2025 garden catalogue plan or custom
4. Site plan, lot grading plan, tree declaration, servicing
5. Building permit — reference the certified plan number; do not re-upload the City drawings
6. Apply for DC deferral if the lot is eligible
7. Inspections through occupancy (building, HVAC, plumbing, ESA)

We run the file. You pick the plan and the finishes.

Incomplete files come back. A clean site and grading package is the schedule. The full walkthrough: Toronto laneway and garden suite permits (2026).

Who this is for

Toronto homeowners on lots without a public lane who want a legal second dwelling — rental, parents, or adult kids — and want one team from the lot check to keys.

Etobicoke is Toronto. If you are west of the Humber, use garden suites in Etobicoke or stay on this page — same rules, same map.

If you have a public lane, go to laneway suites in Toronto. If you are in Mississauga, the City's own 430 / 600 plans apply: garden suites in Mississauga. We also build in Brampton and Oakville. See our services or modular vs site-built.

Related: laneway suite builder in Toronto (if you have a public lane) · Toronto garden and laneway suite cost · Toronto permits 2026 · garden suites in Etobicoke · pre-approved plans · lot check · Home.

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