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Reports, permits and disputes

Arborist reports

A written report from an arborist about a tree's condition, often required for a city tree permit.

What it is

An arborist report records each tree's species, size, health and condition, and gives a recommendation. Cities with private tree bylaws usually require one before they'll issue a permit to remove or injure a protected tree.

Reports are also used for insurance claims, property sales and settling questions with neighbours. Your city may require the report to be done by an ISA Certified Arborist or another qualified professional.

Signs you might need it

  • You want to remove a tree in a city with a private tree bylaw
  • Your city asked for a report with your permit application
  • You need an independent record of a tree's condition for insurance or a neighbour
  • You're buying a property with large trees

Good to know

A tree protection plan is a specific kind of report for construction projects. A bylaw specialist can also fill out and submit the permit application for you.

What it costs

Typical cost in Ontario

$250–$800 per reportWell supported

Before HST, for 1–3 trees. Multi-tree or complex sites run $800–$1,500 or more. The city's own permit fee is extra.

What pushes the price up or down

  • Number of trees in the report
  • Why you need it: a simple removal letter costs less than a construction report
  • Which city it's for (some ask for much more detail)
  • Site complexity: slopes, ravines, trees close to buildings
  • Rush turnaround

Ways to spend less

  • Have one report cover every tree you need assessed
  • Ask whether the price includes filling out and submitting the city application
  • Book early to avoid rush fees

Several Ontario firms publish prices that agree, mostly in the GTA. Prices are typical ranges gathered from published Ontario price guides and company price pages in September 2026, before 13% HST. They’re a guide, not a quote: your price depends on your tree and your property. Get two or three written quotes, and check whether your city charges a permit fee.

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