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Where We Build - 30 GTA Municipalities
Design, permits and construction of second dwellings across 30 Greater Toronto Area municipalities.
Frequently Asked Questions
Everything you need to know about our services.
We work across thirty municipalities in the Greater Toronto Area, covering the City of Toronto and the four surrounding regions - Peel, York, Durham and Halton. That includes the large centres such as Mississauga, Brampton, Vaughan, Markham and Oshawa, and the smaller and rural municipalities in the same regions, from Caledon and King to Scugog, Uxbridge and Georgina. Each municipality has its own ADU by-law, its own permit fee schedule and its own review timeline, so we keep a separate page for every one of them rather than treating the GTA as a single jurisdiction. If your property sits inside those thirty, the zoning review, permit drawings and construction are all handled by the same team.
Related service: Accessory Dwelling Units
Yes, and the differences are the single most common reason a project stalls. Ontario's provincial framework sets the floor - as-of-right permission for additional residential units - but each municipality writes the zoning by-law that governs setbacks, maximum height, lot coverage, separation from the main house, parking relief, tree protection and angular planes. Two lots of identical size on opposite sides of a regional boundary can support very different units.
Permit fees and review timelines vary as well. This is why our city pages carry that municipality's own by-law position, fee range and lot typology rather than a single GTA-wide summary.
Related service: Accessory Dwelling Units
Distance itself is not billed as a line item. What does move the price on outlying lots is the practical reality of the site: longer servicing runs to reach municipal water and sewer, septic or well considerations in rural areas, conservation-authority review where a property sits near a watercourse, and material delivery to a site without paved rear access. Those are scoped and priced during the feasibility stage, before you approve anything, so the figure you sign is the figure you build to. A large suburban lot in Durham or Halton frequently costs less per square foot to build than a constrained downtown Toronto lot, despite the drive.
Related service: Our ADU services
Our thirty city pages cover the municipalities we work in regularly and can speak to with by-law specifics. If your property sits just outside that set but still within reach of the Greater Toronto Area, send us the address and we will tell you plainly whether we can take it on, rather than guessing at rules we have not read. Where we cannot, we will say so.
We would rather decline a project outside our working area than run a permit application through a by-law we do not know well, because that is where homeowners lose months. Send the address and a copy of your survey if you have one, and you will get a straight yes or no within a couple of business days.
Related service: ADU Building Permit
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Get a free, no-obligation quote from GTA ADU Builders - zoning review, permit drawings and construction for ADUs across the GTA.