Board Certified Master Arborist Serving Hamilton
GVI, Tree Protection Plans, and development consulting to City of Hamilton Planning standards. Early engagement, credible documentation.
Hamilton is the most regulatory complex of the municipalities I serve, and the one where early arborist engagement matters most. The City operates two distinct tree frameworks that apply in different situations, and understanding which one applies to your project is the first step.
For development applications under the Planning Act, the City's Tree Protection Guidelines apply consistently across all of Hamilton. The City will not begin internal review of your planning application until a General Vegetation Inventory (GVI) prepared by a certified arborist has been submitted with the requisite fee. That means arboricultural work sits on the critical path of every planning application in Hamilton, regardless of tree count or site conditions.
For private tree removals outside of a development context, Hamilton is still operating under a patchwork of former municipal bylaws depending on whether your property is in Ancaster, Dundas, Stoney Creek, or the former City of Hamilton. A unified city-wide private tree by-law is under active development with a proposed threshold of 45 cm DBH, but has not yet been enacted.
If you are not certain which framework applies to your situation, a brief conversation will clarify it.
What Triggers an Arborist Requirement in Hamilton?
Stream 1: Development Applications (Planning Act)
The City's Tree Protection Guidelines apply to all privately-owned lands subject to Planning Act approvals. This includes draft plans of subdivision, site plan approvals, consent applications, part lot control, and Niagara Escarpment Plan permits. The process has four stages:
Stage 1: General Vegetation Inventory (GVI)
A GVI is required with the submission of every Planning Act application. The City will not begin internal review - meaning no circulation to Engineering, Public Works, or the Conservation Authority - until the GVI and fee have been received. The GVI must be prepared by a certified arborist and provides a site-wide inventory of vegetation units, their condition and significance, and recommendations on whether a full Tree Protection Plan is required. It is not a detailed tree-by-tree inventory, but it sets the scope of what comes next.
Stage 2: Tree Protection Plan (TPP)
Where the GVI identifies quality vegetation requiring further analysis, a full Tree Protection Plan must be submitted with servicing, grading, and stormwater plans as a condition of draft plan or site plan approval. The TPP must individually tag and assess every tree 10 cm DBH or larger on the site. For each tree, the report documents species (common and botanical names), DBH, condition (Good/Fair/Poor/Dead), and recommended action (retain/remove/transplant). The TPP must also include a scaled map, an analysis of grading and servicing impacts, and proposed protection measures including hoarding specifications.
Alternatively, an applicant may submit the full TPP at the time of application in place of the GVI, bypassing Stage 1 - this approach should be discussed with City staff at the Formal Consultation stage.
Stage 3: Implementation
Before any grading, servicing, or construction can begin, the arborist must provide the City with a Verification of Tree Protection Letter confirming that all protection measures shown on the approved TPP have been installed. The City requires paige wire farm fencing as the standard hoarding form - snow fencing is not acceptable. Protection zones are measured from the dripline plus 1 metre around the perimeter.
A security deposit is required for all lots with tree protection under an approved TPP. 75% is released once the arborist certifies implementation. The remaining 25% is held through a two-year maintenance period and may be reduced based on tree survival.
After grading is complete, a Post-Grading Tree Maintenance Report must be submitted to the City before the security deposit is released.
Stage 4: Landscape Plan
A Landscape Plan prepared by a registered Landscape Architect is required. Hamilton requires 1-for-1 compensation for any approved removals. Where on-site replanting is not possible, cash-in-lieu is provided to the City for planting elsewhere. Native species are required wherever possible - the City maintains an approved species list and prohibits invasive species adjacent to Natural Heritage System Core Areas.
Stream 2: Private Tree Removals Outside of Development
For property owners who need to remove a tree that is not part of a Planning Act application, the applicable rules depend on the former municipality:
• Ancaster: Heritage Tree By-law 2000-118 governs. Contact the City for current requirements.
• Dundas: Dundas Tree By-law 4513-99 governs. Permit exemptions apply in certain situations.
• Stoney Creek: Stoney Creek Tree By-law 4401-96 governs.
• Former City of Hamilton: No private tree by-law is currently in effect for residential removals in the former city area outside of development applications. A proposed unified by-law with a 45 cm DBH threshold is under public consultation as of 2026 but has not been enacted.
If you are unsure which rules apply to your address, I can tell you in a short conversation.
Public Trees and Construction Projects
Any work that affects trees within Hamilton's public right-of-way, including street trees adjacent to your development site, is governed under Hamilton By-law 15-125. A Tree and Soil Management Plan is required for development projects affecting public trees, covering trees 10 cm in diameter and larger within the work area, and 6 metres beyond. Excavation within a tree's dripline must use non-invasive methods such as AirSpade or hydrovac. These requirements apply in addition to the Planning Act tree protection process, not instead of it.
Services for Hamilton Projects
• GVI - General Vegetation Inventories (GVI) prepared to City of Hamilton Planning standards
• Tree Protection Plans - Tree Protection Plans with full tree inventory charts, scaled maps, and implementation specifications
• Implementation Monitoring - Verification of Tree Protection Letters and construction monitoring throughout active phases
• Post-Grading Reports - Post-Grading Tree Maintenance Reports
• Public Tree Plans - Tree and Soil Management Plans for public tree impacts
• AirSpade Excavation - AirSpade root excavation for work within driplines
• Private Tree Assessments - Private tree assessments under Ancaster, Dundas, and Stoney Creek bylaws
• Pre-Application Consultation - Early design consultation for architects and developers before drawings are locked
Turnaround and Process
For most infill and consent applications in Hamilton, turnaround on a GVI is five to seven business days from the site visit. Full TPPs and reports for larger sites typically take seven to fourteen business days. If your project is on a tight timeline, let me know at the start and I will tell you what is realistic.
I manage the arboricultural side of your application from initial site visit through to security deposit release. When the City's Planning and Economic Development Department requests changes or additional information, I respond directly.
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Yes. The City of Hamilton will not begin internal review of any Planning Act application, including site plan, subdivision, or consent, until a General Vegetation Inventory prepared by a certified arborist has been submitted with the application and fee. This means arborist engagement has to happen before your application goes in, not after. Getting the GVI done early, before drawings are finalized, prevents costly redesigns when tree constraints emerge during review.
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A GVI is the first step - a site-wide overview of vegetation that identifies significant trees and recommends whether a detailed Tree Protection Plan is required. It is not a tree-by-tree inventory. A TPP goes further: it individually tags and assesses every tree 10 cm DBH or larger, provides a scaled site map with protection zones, and specifies exactly how trees will be protected through construction. The TPP is required before grading or servicing can begin on lots where quality vegetation has been identified.
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It depends on where in Hamilton you are. Ancaster, Dundas, and Stoney Creek each have tree by-laws from before amalgamation, with different thresholds and requirements. The former City of Hamilton currently has no private tree by-law for residential removals outside of development applications - though a proposed unified by-law with a 45 cm threshold is under public consultation. If you are unsure which rules apply to your address, contact me and I will help you figure it out.
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Fees depend on site size, vegetation complexity, and the scope of the application. I provide a fixed quote after an initial conversation. There are no surprises. A brief consultation is free - contact me and tell me what you are working on.
Frequently Asked Questions
Working on a project in Hamilton?
Tell me what you are dealing with. I will tell you what you need, and what you do not.