Green Building Rating Systems

LEED Canada 

Buildings generate up to 35 per cent of all greenhouse gases, 35 per cent of landfill waste comes from construction and demolition activities, and 80 per cent of all water is consumed in and around buildings. It’s clear that making buildings greener can have a significant impact on larger environmental goals.

Leadership in Energy and Environmental Design (LEED) is a rating system that is recognized as the international mark of excellence for green building in over 132 countries. Since 2002, the Canada Green Building Council (CaGBC) and LEED Canada have been redefining the buildings and communities where Canadians live, work and learn. LEED works because it recognizes that sustainability should be at the heart of all buildings – in their design, construction and operation. Over the past 11 years, the CaGBC has certified over 1000 LEED buildings in Canada and registered over 4000, the second highest number in the world.

LEED certification provides independent, third-party verification that a building, home or community was designed and built using strategies aimed at achieving high performance in key areas of human and environmental health: sustainable site development, water savings, energy efficiency, materials selection and indoor environmental quality. There are a number of LEED® Canada rating systems available to meet the needs of different building and project types.See below for a list of rating systems and visit for more information.

  • New Construction
  • Core and Shell
  • Commercial Interiors
  • Existing Buildings
  • Neighborhoods


BOMA BESt (Building Environmental Standards) is a national program launched in 2005 by the Buildings Owners and Managers Association of Canada (BOMA Canada) to address an industry need for realistic standards for energy and environmental performance of existing buildings based on accurate, independently verified information. It currently counts over 3,600 buildings in its database. BOMA BESt, a web-based certification program, currently offers tailored assessment modules for the following building types:

  • Office
  • Open Air Retail
  • Light Industrial
  • Shopping Centres
  • Multi-Unit Residential Buildings

Green Globes

Offered by the Green Buildings Initiative, Green Globes is a web-based questionnaire that allows building owners and developers to assess their projects against a standard of environmental design. Although this is a self-assessment system, third-party verification is required for full certification.



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