Hamilton Tree Removal Permits: Which Bylaw Applies & Arborist Reports

Understanding Hamilton’s Tree Protection

Hamilton uses several overlapping tree rules. Some follow former municipal boundaries, some apply only to a woodland, some depend on tree ownership, and some use a detailed schedule map. A street address alone can narrow the search, but it cannot always produce a final permit answer.

Start with our Hamilton property rule lookup. It places the lot on a real map, identifies the former municipality and Urban Boundary, and lists the rules that still need to be checked.

Which Rules Apply to You?

Ancaster

Former Ancaster is a useful first filter, not the permit test. By-law 2000-118 applies within its Schedule A area to defined heritage trees and qualifying woodlands. The heritage-tree definition starts at 45 cm DBH, but species and distance-from-building provisions also matter. A 45 cm tree is not automatically protected just because the address says Ancaster.

Dundas

By-law 4513-99 applies to mapped lots and designated land classes, not every property in former Dundas. Its common trigger is 15 cm diameter measured 0.3 m above ground. Specified yards in the Cross-Melville area use a 10 cm trigger. The official schedules must be checked before treating either number as applicable to a property.

Stoney Creek

By-law 4401-96 covers qualifying woodlots of at least 0.5 ha and designated Niagara Escarpment land. Its typical thresholds are 30 cm for deciduous trees and 15 cm for conifers. The former Stoney Creek boundary alone does not make every residential tree subject to this bylaw.

Flamborough and Glanbrook

Neither area has a general legacy bylaw for an ordinary individual tree. That does not end the screening. The city-wide woodland rule, public-tree rule, conservation regulation, development approvals, and enacted scheduled areas can still apply.

Former City of Hamilton (Lower City, the Mountain, East End)

The former City of Hamilton has no general legacy bylaw for an ordinary individual tree. A City-owned tree still requires permission under Public Tree By-law 15-125. Woodland rules, the 2023 scheduled areas, conservation regulation, and development approvals can also change the answer.

Three rules that cross the old boundaries

1. Public Tree By-law 15-125 applies anywhere in Hamilton when the tree is City-owned.
2. Woodland Conservation By-law R00-054 applies city-wide to qualifying woodlands of at least 0.81 ha.
3. Urban Woodland By-law 14-212 applies inside the Urban Boundary to qualifying woodlands of at least 0.2 ha.

The 2023 amendments also created three mapped blocks where individual trees at 20 cm DBH may be protected. Those schedule sheets are not the same as a former municipality boundary and must be checked separately.

Urban Woodland By-law

Hamilton’s Urban Woodland By-law (14-212) applies inside the Urban Boundary to woodlands of 0.2 hectares or more. It protects woodland ecosystems rather than every stand-alone tree. The older R00-054 rule remains the city-wide woodland layer for qualifying woodlands of at least 0.81 hectares.

Applications under the Urban Woodland By-law involve a more detailed ecological assessment and are reviewed by the city’s environmental planning staff.

Niagara Escarpment

The Niagara Escarpment runs through Hamilton, and properties within the Escarpment plan area are subject to the Niagara Escarpment Planning and Development Act. This is a provincial regulation that operates independently of any municipal bylaw. If your property is in the Escarpment plan area, you need a Development Permit from the Niagara Escarpment Commission for tree removal or any site alteration.

The Escarpment rules apply across all parts of Hamilton, regardless of which former municipality your property was in. This is particularly relevant for properties in Ancaster, Dundas, and parts of Stoney Creek that border the Escarpment.

Conservation Authority Lands

Properties near watercourses, wetlands, and other regulated areas fall under the jurisdiction of the Hamilton Conservation Authority. Work within regulated areas (including tree removal) may require a permit from the Conservation Authority in addition to any municipal requirements.

How to Apply

For a Legacy or Scheduled-Area Rule

Contact the city’s Municipal Law Enforcement, Trees (MLETrees) team by email at MLEtrees@hamilton.ca or by calling 905-546-2424 ext. 2782. Ask staff to confirm the applicable bylaw and schedule before assembling the application. Depending on the rule and work, you may need:

• A description of the tree(s) proposed for removal
• An arborist report documenting species, size, health, and removal justification
• A site plan showing tree locations
• Photos of the tree

For Urban Woodland or Development Applications

Development-related tree preservation plan reviews are submitted through the city’s planning department. The review fee is $750. A detailed Tree Preservation Plan prepared by a certified arborist is required.

For Escarpment Properties

Contact the Niagara Escarpment Commission for a Development Permit application. Our arborist report can serve as supporting documentation for both the municipal and NEC applications.

Penalties

Penalty ranges vary by which bylaw applies:

• Individual fines up to $10,000 under most municipal bylaws
• Corporate fines can exceed $100,000
• Niagara Escarpment Commission violations carry separate provincial penalties

The Proposed New Bylaw

Hamilton has proposed a unified private tree bylaw (a Harmonized Private Tree By-law) to replace the current patchwork system. If adopted, it would bring consistent rules across all parts of the city within the urban boundary. As of mid-2026, the bylaw is still under council review and has not been passed. See our detailed guide to the proposed 2026 bylaw for the draft thresholds, what’s already in force for developers today, and how to get notified the day it passes.

Common Questions

Do I need a permit to remove a tree in Hamilton?

It depends on where the property is, because Hamilton has no single private tree bylaw. Former Ancaster, Dundas, and Stoney Creek each keep their own legacy rules, two woodland bylaws cover qualifying woodlands (one city-wide, one inside the Urban Boundary), and the Niagara Escarpment adds a provincial layer. Our Hamilton property lookup narrows down which rules need checking for a specific address.

What does an application cost?

Most of Hamilton’s tree bylaws list no application fee. The exception is a development-related Tree Preservation Plan review, which costs $750.

Has Hamilton passed its new city-wide tree bylaw yet?

Not yet. A Harmonized Private Tree By-law has been proposed to replace the patchwork, but as of mid-2026 it remains under council review. Our 2026 bylaw guide tracks the draft thresholds and what already applies to developers today.

Working with The Arborist Group

Hamilton’s regulatory patchwork makes professional guidance particularly valuable. We determine which bylaws apply to your specific property, prepare arborist reports that meet the requirements of each jurisdiction, and handle applications to the city, Conservation Authority, and Niagara Escarpment Commission as needed. One report, all the bases covered.