MarkhamSite Alteration & EngineeringTrees
Tree Permit: Tree Assessment & Preservation Plan (TAPP) Requirements
Published by City of Markham
This is the City of Markham’s document, as published on its website on 18 October 2026. The municipality may have changed it since: check the current version at the source. Legal notice
- Type
- Study
- Published by
- City of Markham
- Date
- March 2, 2026
- Also called
- Tree Assessment and Preservation Plan
- For
- any
- Building types
- All building types
- Pages
- 10
Overview
The City of Markham's ten-page requirements document for a Tree Assessment and Preservation Plan (TAPP), dated March 2, 2026 and issued by the By-law Enforcement and Regulatory Division for tree permits tied to Residential Grading and Servicing (RGS), housing, demolition, alteration and pool enclosure permits. It sets out design and pre-construction steps, what a TAPP contains (tree inventory, condition ratings, Progressive Aggregate Caliper Method replacement ratios, tree protection plan, appraisals), Tree Protection Zone barrier specifications, injury mitigation during construction, post-construction steps, and appendices on hoarding and barrier signage.
What it covers
- Purpose and Overview of the Tree Permit Requirements
- Design and Pre-Construction Requirements
- Tree Assessment and Preservation Plan Requirements
- TPZ (Tree Protection Zone) Barrier Specifications
- Construction Requirements: Tree Preservation and Injury Mitigation Techniques
- Post-Construction Requirements
- Appendix A – Vertical Hoarding TPZ Barrier Specification
- Appendix B – Horizontal Hoarding TPZ Barrier Specification
- Appendix C –TPZ Barrier Signage
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