Local tree-rule guide
Newmarket tree rules
Private-tree rules are present; check size/location exceptions.
The local rule
Newmarket’s Private Tree Protection By-law applies town-wide and requires a permit to remove or injure a private tree at or above the bylaw’s protected diameter threshold.
The Town’s guide uses 20 cm DBH as the key private-tree threshold and can require supporting arborist and replacement information depending on the application.
Application details
What a Newmarket private-tree permit currently involves
- Newmarket’s current private-tree page turns the 20 cm DBH trigger into a practical application process.
- The Town asks for tree measurements and condition information, professional evidence where required, and a replacement plan for non-hazard removals.
A regulated private tree is 20 cm DBH or larger, measured 1.4 m above ground. The Town asks applicants to record tree size, condition, the reason for removal and replacement recommendations.
The Town publishes a $116.50 review fee per tree, plus an administration fee based on the number of trees: $100 for one tree, $300 for two to four, $1,000 for five to ten, and $5,000 for eleven or more.
For non-construction removals, the published cash-in-lieu amount is $300 per required replacement tree. Construction-related removals use $450 per 6 cm replacement tree where planting cannot be accommodated.
The Town’s application information calls for arborist details and can require an arborist report. A deposit may also be required to protect trees retained during construction.
A permit can be refused for reasons including an incomplete application, environmental or erosion/flood concerns, conflicts with an active planning application, or inconsistency with an approved site plan. A refusal can be appealed in writing within 14 calendar days.
Before work starts
- Ownership: check the property line. Public and boundary trees may follow a different process.
- Site context: review any development approval, covenant or protected-area conditions.
- Work requirements: confirm any permit, exemption or protection requirements that apply to the planned work.
Official sources
Primary municipal source reviewed October 1, 2026. Rules can change; confirm with the local authority before work. How we research