Toronto Tree and Ravine Permits for Pools, Cabanas and Landscaping

Milton Stone · Landscape approval planning · September 15, 2026

Tree review can affect excavation, access and material storage as well as removal. Check Toronto’s current rules before fixing the layout of a backyard construction project.

Which trees and areas need a closer check?

Toronto’s current guidance protects private trees at least 30 centimetres in diameter at breast height, street trees of any size and designated ravine/natural features. Ravine controls can cover grading, fill and new or replacement structures and retaining walls. Check the mapped area and proposed activity with the City. Official tree and ravine permit guidance.

What changed in September 2026?

The City’s review identifies new protections effective September 1, including a Distinctive Tree category for large, healthy trees over 61 centimetres and protection regardless of size for trees planted through development approvals or enforcement. The proposed general threshold reduction from 30 to 20 centimetres is pending further analysis and implementation strategy for 2027; it is not presented as the current general threshold. Toronto’s tree-bylaw update.

Keeping a tree does not end the review

The City recommends arborist assessment of the tree-protection zone. Construction access or storage affecting that zone can require an injury/removal permit. Its guidance calls for protection planning even where work does not affect the zone. Tree permission also does not grant access to a neighbour’s property. Review the construction and ownership guidance.

Give the designer the full construction brief

Include the pool or cabana footprint, proposed finished levels and the route needed to build it. Photograph narrow side yards, retained walls and potential delivery areas. Ask the arborist and designer to identify which information is needed to assess a practical arrangement.

Discuss alternatives before committing to a finished layout. A change to the location of seating, stairs or storage may affect how the project can be constructed. Record which option the quotation assumes so that access and protection costs are compared consistently.

Coordinate related permits

Read our Toronto cabana and pool-house permit guide and retaining-wall permit guide. Keep tree/ravine review, building approvals and the construction scope separately identified in your project checklist.

Before accepting a proposal, ask who prepares each submission, responds to review comments and carries approval conditions into the construction plan. At handover, retain the relevant approvals, drawings and recorded changes with the rest of the project documents.

Official guidance reviewed September 15, 2026. Have the municipality and an arborist assess the requirements for your property and proposed work.