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Rental Income Suites in Scarborough, Ontario: design, permit and build on a single contract. A typical 700 sq ft unit estimates at $275,000-$368,500 (about $393/sq ft), with $8,000-$14,000 under the City of Toronto fee schedule 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
Scarborough, Ontario
City of Toronto
Typical build estimate
$275,000-$368,500
about $393/sq ft in Scarborough
Municipal approvals
$8,000-$14,000 under the City of Toronto fee schedule
quoted separately from the build
Build season
April-November
118 cm snow · -3.9°C winter avg
Frost depth
1.2 m
footing depth, OBC Part 9
Local market
629,941
residents · walkability 52/100
Scarborough's slope toward the Bluffs is a design asset: on Guildwood and Cliffside lots the natural grade drop lets us build a legal walk-out basement suite at the front and still place a garden suite at the rear, producing two rentable units from one permit cycle. City of Toronto garden suite rules apply; Scarborough's wide lots also make basement secondary suites with separate walk-out entrances viable alongside a detached unit. Wide suburban lots with grade changes toward the Bluffs, frequently allowing a walk-out basement suite as well as a rear garden suite.
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 Scarborough is uninsurable and unenforceable against a tenant. Scarborough's 629,941 residents and employers including Scarborough Health Network and Centennial College 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 Scarborough estimates at $275,000-$368,500 - about $393/sq ft, set by $8,000-$14,000 under the City of Toronto fee schedule in approvals, a 1.2 m frost-depth footing requirement and 118 cm of annual snow load. Final pricing follows the site visit.
Related service: Our ADU services
City of Toronto garden suite rules apply; Scarborough's wide lots also make basement secondary suites with separate walk-out entrances viable alongside a detached unit. Approval costs in Scarborough run $8,000-$14,000 under the City of Toronto fee schedule, quoted separately from construction so the permit stage holds no surprises.
Related service: Secondary Suites
Wide suburban lots with grade changes toward the Bluffs, frequently allowing a walk-out basement suite as well as a rear garden suite. At 52/100 walkability, Scarborough suites usually keep one parking space: enough to clear the zoning review without surrendering the whole yard. We work regularly in Agincourt, Guildwood, West Hill.
Related service: Garden Suites
Yes - a second dwelling has to be a legal, permitted unit with City of Toronto before it is tenanted. An unregistered suite in Scarborough 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.