Markham Greenlands: Development & Bylaw Overview

Parks and Public Spaces Ontario 3 Minutes Read · published May 24, 2026 Flag of Ontario

Markham, Ontario protects natural heritage and greenlands through planning policies, permitting and by-law enforcement. This overview explains where development and conservation rules come from, how proposals are reviewed, what enforcement looks like, and the practical steps landowners or developers must follow to comply with city requirements. Key municipal controls include the City of Markham Official Plan and planning application procedures, which set land-use policy and documentation needs for projects in natural areas; see the City of Markham Official Plan for natural heritage policy and mapping City of Markham Official Plan[1]. For permit forms and submission steps consult the city planning applications portal Planning applications[2]. For by-law enforcement, inspection and complaints see the city By-law Enforcement page By-law Enforcement[3].

Penalties & Enforcement

The City enforces development and conservation controls through by-law officers, planning staff and delegated authorities. Enforcement tools range from compliance orders to ticketing and court prosecution. Where conservation authorities have jurisdiction, those authorities also issue permits and enforce regulations.

  • Monetary fines: amounts and schedules are not specified on the cited page; consult the By-law Enforcement page for current fine schedules and ticketing processes.[3]
  • Escalation: first offence, repeat and continuing offences may be escalated to higher penalties or court action; exact escalation ranges are not specified on the cited page.[3]
  • Non-monetary sanctions: compliance orders, stop-work orders, removal or restoration orders, and court injunctions can be used.
  • Enforcer and inspections: municipal by-law officers, Planning staff and Conservation Authority officers carry out inspections; complaints route through By-law Enforcement and Planning intake.[3]
  • Appeals and reviews: statutory appeal routes or review mechanisms depend on the instrument (planning decision, permit refusal or order); time limits for appeals are set by the relevant statute or decision notice and are not specified on the cited pages.
  • Defences and discretion: defences can include permits issued, approved variances, or established reasonable excuse where allowed by law; specific defences are case-specific.
If you receive an order or ticket, act quickly to request review or seek permit regularization.

Applications & Forms

Common applications for projects affecting greenlands include Site Plan Applications, Official Plan or Zoning amendments, and required supporting studies such as an Environmental Impact Study (EIS) or Stormwater Management Report. Official application forms, submission checklists and fee schedules are provided on the City planning applications portal; see the Planning applications page for current forms, fees and how to submit materials.[2]

Many natural heritage applications require pre-consultation with Planning and the Conservation Authority before formal submission.

How decisions are made

Planning staff review proposals against the Official Plan, zoning and conservation policies. Where a Conservation Authority has regulated areas, permit decisions and regulations can also apply. Technical studies (EIS, grading and servicing plans, arborist reports) guide conditions of approval. Final approvals may be administrative or require Council or committee decisions depending on the application type and variance sought.[1]

FAQ

What is a greenland or natural heritage area in Markham?
Greenlands or natural heritage areas include wetlands, woodlands, valleylands, watercourses and other habitats protected under the Official Plan and regulated by Conservation Authorities.
Do I need a permit to work near a creek or wetland?
Work within regulated areas may require Conservation Authority permits; check with the applicable Conservation Authority and the City planning intake before starting work.
How do I report suspected illegal tree removal or unauthorized work?
Report to City By-law Enforcement and the Planning intake; for watercourse disturbances also contact the Conservation Authority listed in Help and Support / Resources below.

How-To

  1. Pre-consult: contact City Planning and relevant Conservation Authority to confirm regulated areas and requirements.
  2. Prepare studies: commission an EIS, grading plan and arborist report if required by the pre-consultation.
  3. Submit complete application: use the City planning applications portal and include all required forms, fees and technical materials.[2]
  4. Respond to conditions: address review comments, provide mitigation measures and satisfy any permit conditions from the Conservation Authority.
  5. Obtain approvals and permits: secure municipal approvals and any Conservation Authority permits before starting work.
Completing pre-consultation and studies early reduces delays and enforcement risk.

Key Takeaways

  • Check Official Plan policies and mapping early in project planning.[1]
  • Pre-consultation and required studies are commonly mandatory for greenland projects.
  • Report suspected breaches to By-law Enforcement and the City planning intake promptly.[3]

Help and Support / Resources


  1. [1] City of Markham - Official Plan
  2. [2] City of Markham - Planning applications
  3. [3] City of Markham - By-law Enforcement