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ADU Building Permit in North York, Ontario: design, permit and build on a single contract. A typical 700 sq ft unit estimates at $17,000-$33,500 (about $400/sq ft), with $8,000-$14,000 under the City of Toronto fee schedule in municipal approvals and a April-November construction season.

Permit and approvals handling - zoning review, by-law compliance, application submission and minor variance representation at the Committee of Adjustment where needed.
Service area
North York, Ontario
City of Toronto
Typical build estimate
$17,000-$33,500
about $400/sq ft in North York
Municipal approvals
$8,000-$14,000 under the City of Toronto fee schedule
quoted separately from the build
Build season
April-November
133 cm snow · -4.2°C winter avg
Frost depth
1.2 m
footing depth, OBC Part 9
Local market
869,401
residents · walkability 58/100
North York's 1950s-60s bungalow belt around Willowdale and Don Mills gives us the deepest rear yards inside Toronto's boundary - 120 ft lots where a 700 sq ft garden suite still leaves usable green space. Almost none of these lots have a laneway, which is why nearly every North York project we build is a garden suite rather than a laneway house. Falls under the City of Toronto garden suite by-law; North York's post-war lots rarely have laneways, so garden suites (not laneway suites) are the usual permitted form.
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. North York sees 133 cm of snow and -4.2°C winter averages.
The permit is the whole project's critical path in North York: nothing is ordered and no crew is scheduled until the application clears, and approvals here run $8,000-$14,000 under the City of Toronto fee schedule. We prepare and submit the application, answer the plans-examination comments, and carry the file through zoning, building and - where the lot needs it - Committee of Adjustment, with City of Toronto as the reviewing authority. Approvals are quoted separately from construction on every contract we write, so a fee increase at City of Toronto is visible rather than buried in a build number.
Everything you need to know about our services.
A typical 700 sq ft build in North York estimates at $17,000-$33,500 - about $400/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 133 cm of annual snow load. Final pricing follows the site visit.
Related service: Accessory Dwelling Units
Falls under the City of Toronto garden suite by-law; North York's post-war lots rarely have laneways, so garden suites (not laneway suites) are the usual permitted form. Approval costs in North York 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: Garden Suites
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. North York scores 58/100 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 Willowdale, Bayview Village, Don Mills.
Related service: Accessory Dwelling Units
An as-of-right application in North York is a plans-examination process, not a rezoning - the timeline is set by review cycles and how completely the first submission answers the checklist. Anything needing Committee of Adjustment relief adds a hearing cycle. Fees run $8,000-$14,000 under the City of Toronto fee schedule, quoted separately from construction.
Related service: Accessory Dwelling Units
Get a free, no-obligation quote from GTA ADU Builders - zoning review, permit drawings and construction for ADUs across the GTA.