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Permits & Regulations••Last verified Sep 1, 2026

Working Without a Building Permit in Toronto

Starting construction without a required permit can lead to extra fees, stopped work and costly changes. Here is what can happen.

If construction starts without a required building permit, the City may take action. Possible consequences include: • ADDITIONAL FEES — an extra fee applies when work begins before a required permit is issued. • WORK MAY BE STOPPED — an order can require construction to stop until a permit is obtained. • WORK MAY NEED TO BE UNCOVERED — finished walls, ceilings or floors may have to be opened so inspectors can see the framing, plumbing, insulation or structure. • COMPLETED WORK MAY REQUIRE CHANGES — if the work does not meet the Building Code or the approved plans, it may need to be altered or removed. • PROJECT DELAYS — obtaining a permit after the fact, plus corrections, can add weeks or months. • FUTURE PROBLEMS — unpermitted work can raise questions when selling, refinancing or making an insurance claim. THE OWNER IS RESPONSIBLE Property owners remain responsible for compliance, even if a contractor did the work. Before starting, confirm whether a permit is required and who will apply for it.

Source

City of Toronto

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ConstruWeb provides this information for general educational purposes. Requirements, fees and programs may change and may depend on the property, project and circumstances. Always verify current requirements with the appropriate government, regulatory or professional authority before beginning work.