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Garden suites, laneway homes, basement and secondary suites built for student and young-adult housing across the 30 municipalities of the Greater Toronto Area - zoning review, permit drawings and construction handled by one team.

Key Takeaways
- Key features: Compact suite near a university or college campus, Durable finishes specified for high tenant turnover, Separate hydro metering for a student tenant
Owners near GTA campuses building compact, durable suites for student tenants. Layouts favour a single bedroom, hard-wearing finishes and separate metering, with fire separation detailed for the Ontario Building Code.
Key takeaways
- Owners near GTA campuses building compact, durable suites - York and Seneca in North York, Humber in Etobicoke, Centennial and UTSC on the east side, and Seneca's King campus.
- Student tenancy differs from a family rental in one word: turnover. Twelve-month cycles mean vinyl plank rather than engineered hardwood, solid-core doors, tile to the ceiling, and a mechanical layout that lets one appliance be swapped without opening a wall.
- Separate hydro metering is the item owners most often skip and most often regret - it removes the largest source of dispute, prices the utility to the person using it, and makes the suite legible to a lender as a distinct income stream.
- Costs sit at the low end of the category because internal conversions avoid new foundations and services: the ADU span is $40K to $450K, and an internal suite sits far below the $200,000-$350,000 of a detached unit.
Owners near GTA campuses building compact, durable suites for student tenants. Layouts favour a single bedroom, hard-wearing finishes and separate metering, with fire separation detailed to the Ontario Building Code. The catchment is specific and it is large: York University and Seneca in North York, Humber College in Etobicoke, Centennial and University of Toronto Scarborough on the east side, Seneca's King campus, and the downtown institutions that push demand outward along every transit line.
Student tenancy imposes a different specification from a family rental, and the difference is turnover. Twelve-month cycles mean the finishes are repainted and re-let far more often than in a long-hold unit, so the specification is vinyl plank rather than engineered hardwood, solid-core doors, tile to the ceiling in the shower, a durable laminate counter instead of stone, and a mechanical layout that lets one appliance be swapped without opening a wall. None of this reads as cheap; all of it survives a decade of tenants who are not owners.
Separate hydro metering is the item owners most often skip and most often regret. A metered unit removes the single largest source of dispute in a student tenancy, prices the utility to the person using it, and makes the suite legible to a lender as a distinct income stream. Fire separation and a compliant egress window are not optional and not negotiable: they are what makes the unit legal, insurable and defensible, and an unregistered basement apartment near a campus is exactly the profile that attracts a municipal complaint.
The permitting route is now straightforward. Bill 23, the More Homes Built Faster Act (2022), requires Ontario municipalities to permit up to three residential units as-of-right on most serviced lots holding a detached, semi-detached or townhouse dwelling, replacing the six-to-twelve-month rezoning application that once governed secondary suites. The controlling regulation is O. Reg. 299/19 on additional residential units, amended November 2024. In Brampton, where the Residential Second Unit registration program applies, legalising an existing basement apartment is usually the first step rather than a new build.
Costs are at the low end of the accessory dwelling unit category because internal conversions avoid new foundations and new services: the whole ADU category spans $40K to $450K, and an internal suite sits far below the $200,000 to $350,000 typical of a 500 to 600 sq ft detached unit in the Greater Toronto and Hamilton Area. Permit review runs four to eight weeks. We carry WSIB registration and $2M general liability and issue a clearance certificate on request - under the Construction Act and the WSIA an owner is liable for an unregistered contractor's unpaid premiums.
Approval costs and lot conditions in the GTA municipalities where we build most often for this use.
| Municipality | Typical approval fees | Lot typology |
|---|---|---|
| Toronto | $8,000-$14,000 in permit, development and plan-review fees | Narrow downtown lots with rear public laneways - Toronto has over 300 km of them, more laneway frontage than any other Canadian city. |
| Brampton | $5,500-$10,000 including Brampton registration and Peel charges | Deep newer-subdivision lots, many with an existing unregistered basement apartment that must be brought to Ontario Building Code fire-separation standard. |
| Mississauga | $6,500-$11,000 in City of Mississauga and Region of Peel charges | Large 1970s-90s subdivision lots with attached garages; garage conversions and rear coach houses are both common outcomes. |
| York | $8,000-$14,000 under the City of Toronto fee schedule | Older narrow semi-detached lots on a laneway grid, with frequent shared-driveway conditions that must be resolved before permit. |
| Etobicoke | $8,000-$14,000 under the City of Toronto fee schedule | Split personality - laneway-served lakeshore grid in Mimico and New Toronto, versus large treed lots in The Kingsway where garden suites dominate. |
| Ajax | $7,000-$12,000 including Durham Region charges | Compact 1990s-2000s subdivision lots where the required 1.2 m side-yard construction access sets the maximum module width we can crane in. |
| King | $9,000-$16,500 including York Region and septic charges | Estate and agricultural parcels, many over an acre, on private well and septic with moraine core-area restrictions. |
| North York | $8,000-$14,000 under the City of Toronto fee schedule | Deep post-war bungalow lots, commonly 50 ft × 120 ft, with rear yards large enough for a detached garden suite plus the required 1.5 m separation. |
Fee bands are indicative, drawn from project experience - confirm current tariffs with the municipality before budgeting.
Everything you need to know about our services.
Owners near GTA campuses building compact, durable suites for student tenants. Layouts favour a single bedroom, hard-wearing finishes and separate metering, with fire separation detailed for the Ontario Building Code. The situations we see most often: compact suite near a university or college campus; durable finishes specified for high tenant turnover; separate hydro metering for a student tenant; adult child housed on the property during studies.
Related service: Accessory Dwelling Units
Our estimate band on a 700 sq ft reference unit runs $91,000-$147,500 in Brock to $95,500-$155,000 in East York, about $383-$402 per square foot. This scope involves no new envelope - the money goes into fire separation, egress windows, ceiling height and a second kitchen. Municipal approvals are quoted on top and separately, between $5,500-$10,000 including Brampton registration and Peel charges and $9,000-$16,000 including Peel Region and septic permit charges depending on the municipality.
Related service: Our ADU services
On most serviced GTA lots, yes. Bill 23 and O. Reg. 299/19 permit up to three residential units as-of-right on a lot already holding a detached, semi-detached or townhouse dwelling.
What actually decides it is the local by-law's rear-yard coverage, setback and height limits, plus conservation-authority screening (TRCA, Credit Valley, LSRCA) where the lot is in a regulated area. We check all of that before design starts, not after.
Related service: Our ADU services
It depends on the lot rather than on the preference. A rear yard with clear access supports a detached garden suite or laneway house; an existing garage on a sound slab makes a conversion the cheapest legal route; a full-height basement with a walk-out is the fastest path to a permitted interior suite. We give the answer at the feasibility review, with the by-law citation behind it.
Related service: Accessory Dwelling Units
Eight to fourteen months end to end - design, four to eight weeks of plan review, then construction - across all 30 GTA municipalities we serve. Excavation is scheduled inside the local building season; interior work continues through winter.
Related service: Our ADU services
Building for student and young-adult housing? As adu builders across the GTA we scope the ADU that fits your lot - zoning check, permit drawings and construction.