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Rental Income Suites in Toronto, Ontario: design, permit and build on a single contract. A typical 700 sq ft unit estimates at $279,500-$374,500 (about $399/sq ft), with $8,000-$14,000 in municipal approvals and a April-November construction season.

Homeowners across the GTA who want a second dwelling that pays for itself. We size, permit and build a legal rental suite on your existing lot so the unit meets Ontario Building Code fire separation and egress rules and can be tenanted from the day occupancy is signed off.
Service area
Toronto, Ontario
City of Toronto
Typical build estimate
$279,500-$374,500
about $399/sq ft in Toronto
Municipal approvals
$8,000-$14,000
quoted separately from the build
Build season
April-November
122 cm snow · -3.6°C winter avg
Frost depth
1.2 m
footing depth, OBC Part 9
Local market
2,794,356
residents · walkability 61/100
Toronto's laneway network - more than 300 km of it, and 2,400+ named lanes - is the reason the city wrote Canada's first modern laneway-suite by-law in 2018. Most of our downtown builds sit on lots under 25 ft wide where the rear lane, not the driveway, is the construction access. Toronto permits both laneway suites (2018 by-law) and garden suites (city-wide since February 2022), with a dedicated Laneway Suite and Garden Suite review stream at City Planning.
Narrow downtown lots with rear public laneways - Toronto has over 300 km of them, more laneway frontage than any other Canadian city.
A unit built to rent is designed around durability and turnover: finishes that survive tenancies, a laundry hookup inside the suite, and metering arranged so utilities are not argued about later. We register the unit properly with City of Toronto so it is a legal second dwelling from day one - an unregistered suite in Toronto is uninsurable and unenforceable against a tenant. Toronto's 2,794,356 residents and employers including TD Bank Group and University Health Network set the realistic rent, which is the number the whole build budget should be tested against.
Everything you need to know about our services.
A typical 700 sq ft build in Toronto estimates at $279,500-$374,500 - about $399/sq ft, set by $8,000-$14,000 in approvals, a 1.2 m frost-depth footing requirement and 122 cm of annual snow load. Final pricing follows the site visit.
Related service: Our ADU services
Toronto permits both laneway suites (2018 by-law) and garden suites (city-wide since February 2022), with a dedicated Laneway Suite and Garden Suite review stream at City Planning. Approval costs in Toronto run $8,000-$14,000, quoted separately from construction so the permit stage holds no surprises.
Related service: Garden Suites
Narrow downtown lots with rear public laneways - Toronto has over 300 km of them, more laneway frontage than any other Canadian city. Toronto scores 61/100 on walkability, so many tenants here do not need the extra parking space - that frees rear-yard area for the unit itself. We work regularly in Leslieville, Riverdale, The Junction.
Related service: Our ADU services
Yes - a second dwelling has to be a legal, permitted unit with City of Toronto before it is tenanted. An unregistered suite in Toronto typically voids the property insurance, cannot be enforced under the Residential Tenancies Act, and becomes an open liability at resale.
Related service: Our ADU services
Get a free, no-obligation quote from GTA ADU Builders - zoning review, permit drawings and construction for ADUs across the GTA.