Tri-County Green Development Standards

What is the Project?Green Development Standards

The Tri-Country Green Development Standards (GDS) project is a joint effort among Grey, Dufferin, and Wellington Counties (the Counties) to create unified Green Development Standards that are informed by best practices, existing building credentials programs, and input from stakeholder consultation. The Counties will work closely with member municipalities.

The Tri-County Rural Green Development Standards will establish a consistent framework across the Counties making it easier for the development industry to understand and implement in their projects. The document will incorporate standards and guidelines that can be applied through all phases of development planning applications right through to construction.

 How Can I Get Involved?

Attend a public visioning session. Sessions will be held on:

  • March 25, Wellington County
  • March 26, Dufferin County
  • March 27, Grey County
What are Green Development Standards (GDS)?
  • GDS include measures for developers and builders to create thoughtful and innovative developments using sustainable design.
  • GDS are based on principles to guide development at a level of planning and design that focuses on the community as a whole.
  • GDS are a critical policy tool for municipalities to achieve their greenhouse gas (GHG) reduction targets, their Official Plan goals, their goals for sustainability, and support climate adaptation.
What are examples of Green Development Standards?

There are several green development standards in place in Ontario. Some examples include:

Why are Green Development Standards Important?

  • Municipalities are witnessing rising climate impacts such as higher temperatures, more severe weather events, threats to agriculture, and impacts to health.
  • Most of Canadians lead high carbon lifestyles due to their reliance on gasoline vehicles for transportation and the use of fossil fuels to heat the buildings they live and work in.
  • Municipalities can put cost-effective policies in place that will benefit their residents in the future.
  • With GDS in place, municipalities can ensure that buildings and infrastructure are constructed to be more resilient to disruptions from extreme weather events.

What are the benefits of Green Development Standards?

Green Development Standards provide a mix of benefits to communities. These come in the form of environmental benefits, social benefits, and economic benefits and include: 

Environmental BenefitsSocial BenefitsEconomic Benefits
  • Reduces energy consumption
  • Reduces vehicle dependency
  • Improves water management
  • Increases greenspace
  • Increases climate resilience
  • Improves air quality
  • Promotes healthier, more active lifestyles
  • Increases access to outdoor greenspace
  • Promotes the development of affordable and mixed use housing
  • Promotes community design that embraces heritage and culture
  • Increases property values
  • Reduces municipal infrastructure costs
  • Longer lasting building stock
  • Improves energy affordability
  • Creates jobs


What is the schedule for completing the GDS?


PhaseDetailsCompletion Date
Awareness Building

This phase will raise awareness of the project through webinars and public meetings. This includes:

  • One public visioning session in each County to solicit input on how Green Development Standards can contribute to sustainable communities;
  • One webinar for the development and construction industry to raise awareness of Green Development Standards;
  • Engagement content posted throughout the project on the MetroQuest platform.
April 30, 2024
Creating a Desire for Change

This phase will result in a draft of the Green Development Standards through a series of workshops and charrettes with the building industry and municipal staff.

July 31, 2024
Knowledge Mobilization

This phase will seek feedback on the draft Green Development Standards from municipal staff and council, as well as the development industry and the general public. Standards will be revised based on feedback received.

November 30, 2024



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