General Guide

Port Moody's New Tree Bylaw: The Secret 'Permit Killer'

Port Moody's March 2026 Tree Protection Bylaw can derail your building permit. Learn the technical requirements for trees as small as 10cm and how to avoid $370+ fines and lost securities.

Published April 21, 2026
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Author By Canadian Blueprint Inc.

In Port Moody, the 'Permit Killer' isn't just the tree you want to cut down; it’s the tree you didn't even notice. Under the new 2026 regulations, any property subject to a development application (including a standard Building Permit) must protect trees as small as 10cm DBH (Diameter at Breast Height).

1. The 10cm Trap

Most homeowners assume that small, 'scrub' trees don't require professional oversight. However, on a development site, a 10cm trunk—roughly the width of a grapefruit—is a protected entity.

  • Site Plans: Your site plan must accurately reflect every protected tree within the property lines and any tree on adjacent properties whose Tree Protection Zone (TPZ) extends into your construction area.
  • Topographical Surveys: We now require surveyors to pick up any tree 10cm or larger to ensure our building envelopes don't infringe on critical root zones.

2. Technical Drawing Requirements

The City of Port Moody will no longer accept a simple 'X' on a map. A 'Permit-Ready' package must include a detailed Tree Management Plan overlaying the architectural footprints.

  • TPZ Calculation: Typically calculated as 6 times the DBH (or more for sensitive species).
  • Encroachment Limits: If your excavation for a foundation or even a new driveway enters more than 10-15% of the TPZ, the City may mandate a design redesign or an 'Arborist Memo' confirming the tree's viability.
  1. 1
    Audit for 10cm DBH 'Development' Trees
  2. 2
    Delineate Tree Protection Zones (TPZ) on Site Plans
  3. 3
    Secure TRAQ-Qualified Arborist Reports
  4. 4
    Calculate Refundable Securities and Fines

3. Financial Exposure: Securities & Fines

The 2026 Bylaw introduces high-stakes financial penalties for non-compliance.

  • Refundable Securities: Expect to pay a $370 to $740 security deposit per tree for replacements. For Landmark trees (50cm+), this leaps to $5,000 per tree.
  • The 'Permit Killer' Fine: Unauthorized removal or damage to a protected tree root system can result in fines starting at $370 per tree, often doubled for development sites, plus the loss of your security deposit.
  • Bird Nesting Window: Any removal between March 1 and August 31 requires a QEP (Qualified Environmental Professional) survey, adding weeks to your timeline if active nests are found.

4. The Senior Designer's Strategy

To avoid the 'deficiency list' loop, your permit application must lead with an ISA-certified Arborist Report that has been coordinated with the structural and civil drawings. We don't just 'draw' the house; we negotiate the building's position to ensure the City sees a project that respects the urban canopy while maximizing your buildable area.

The 2026 Thresholds: What Triggers a Permit?

A technical breakdown of tree diameters (DBH) and the associated regulatory hurdles in Port Moody.

Tree CategoryDiameter (DBH)Permit Trigger
Standard Residential (Non-Dev)≥ 30 cmTree Management Permit ($75 Fee)
Development/Building Site≥ 10 cmFull Development Tree Permit ($300 - $720)
Landmark / Legacy Trees≥ 50 cm$5,000 Security Deposit per Tree
Protected Species (Yew, Arbutus)≥ 10 cmMandatory Retention / Qualified Professional Review

Don't Let a Tree Kill Your Permit

Port Moody's intake desk is more rigorous than ever. Our team specializes in 'Tree-First' design strategies that clear municipal review without the $5,000 surprises.

Get Your Site Audited for 2026 Compliance

FAQ: Why Your Site Plan is Already Obsolete

What happens if I remove a tree without a permit?

Unauthorized removal of a tree $\ge$ 10cm on a development site can result in immediate Stop Work orders, fines starting at $370 per tree, and a permanent mark on your development record which can delay future permits.

Does this apply to trees on my neighbor's property?

Yes. If a neighboring tree's root system (TPZ) extends into your property where construction is occurring, you are legally required to provide protection measures and potentially an arborist's supervision during excavation.

Are there any exemptions for hazardous trees?

Yes, but you still need a permit. For hazard trees, the $75 fee is typically waived, but an ISA-certified arborist with a TRAQ (Tree Risk Assessment Qualification) must provide a report confirming the risk level.

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Canadian Blueprint Inc.

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