MarkhamPlanning ApplicationsPlanning guidelines

Environmental Impact Study Guidelines

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: Guide
Published by: City of Markham
Date: May 2025
Also called: Environmental Impact Study Guidelines (2025)
For: designer
Building types: All building types
Pages: 50

Overview

The City of Markham's Environmental Impact Study Guidelines, Version 3, May 2025, from Planning and Urban Design, updating the 2002 and 2018 versions. They explain the purpose of an EIS for development near the Greenway System and when one applies, the roles of York Region, TRCA, provincial ministries and Fisheries and Oceans Canada, and the outline of a study from field staking and evaluation of significance to impact assessment, ecological compensation and monitoring, with appendices on vegetation protection zones and significant wildlife habitat.

What it covers

Introduction
Purpose of an Environmental Impact Study
When is an EIS required?
Role of Agencies
Approach to Evaluation in a Natural Heritage Systems Context
Submission and Approval of an Environmental Impact Study
Outline of an Environmental Impact Study
Field Staking: Natural Heritage, Hazard, and Hydrologic Features
Evaluation of Significance
Impact Assessment and Mitigation Measures
Ecological Compensation
Monitoring and Adaptive Management
Natural Heritage and Hydrologic Evaluations in the Oak Ridges Moraine and Greenbelt Plan Areas
Appendices
City of Markham Greenway System
Minimum Vegetation Protection Zones
Significant Wildlife Habitat Checklist
Flora and Fauna Inventory and Survey
Definitions

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