ADU Feasibility in Toronto

Zoning limits, typical rent, and 5%-down CMHC Prefab Plus financing for garden suites and laneway suites in City of Toronto — checked against 2026 by-laws and market data.

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Zoning Rules for Toronto

Max ADU Size
1,076 sq ft
Rear Setback
1.5 m
Side Setback
0.6 m
Max Height
6 m

As-of-right status: Yes — as-of-right in most residential zones. 100 m² max gross floor area (60 m² typical footprint on most lots).

As-of-right in most residential zones since By-laws 847/849-2025, following provincial regulation 462/24.

Source: City of Toronto Garden/Laneway Suite rules, 2025–2026

⚠️ Preliminary estimate based on publicly available zoning by-laws as of 2026. Your lot, tree by-laws, and recent amendments may change what applies. Our $497 Feasibility Report includes a verified zoning review for your exact address.

Typical Toronto ADU Rent (2026)

Studio
$1,700/mo
1-Bedroom
$2,200/mo
2-Bedroom
$2,900/mo

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Financing: CMHC Prefab Plus (5% Down)

As of 2026, CMHC insures mortgages for prefab/modular ADU construction with as little as 5% down and staged funding across 4 milestones — the same terms as buying a regular home.

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Toronto ADU — Frequently Asked

Do I need a permit for a laneway or garden suite in Toronto?
Yes — a building permit is required, but zoning approval is as-of-right in most detached and semi-detached residential zones, meaning no rezoning application needed if you meet the by-law limits.
How big can my Toronto ADU be?
Up to 100 m² (about 1,076 sq ft) of gross floor area, with a 6-metre height limit and 1.5m rear / 0.6m side setbacks.
How much does a Toronto ADU typically rent for?
Roughly $1,700/mo for a studio up to $2,900/mo for a 2-bedroom unit, based on 2026 market data.

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Our $497 Feasibility Report confirms your exact zoning, realistic cost, and permit pathway for your Toronto property within 48 hours.

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