Toronto Green Standard: Net Zero Transition Study Update

To address the feasibility of this acceleration, the City launched the Net Zero Transition Study. As part of the study, staff, in consultation with stakeholders considered opportunities to introduce revised Toronto Green Standard performance measures to reduce greenhouse gas emissions in 2025. These opportunities were based on the results of the study's first phase. The Toronto Green Standard (TGS) has been applied to new construction through the development review and approvals process since 2010 and has followed a standard frequency of updates on a four-year cycle, each time advancing the City's environmental sustainability priorities. This frequency has ensured the development industry has time to adjust to higher standards. Implementing changes between the four-year period is more challenging as it is not part of a comprehensive Toronto Green Standard update. Stakeholder feedback identified the need to understand the full suite of proposed changes associated with the next Toronto Green Standard update, as well as comprehensive costing on all potential changes. While changes would positively contribute to addressing the climate crisis, based on current market trends it is expected that the number of projects that would be affected by accelerating one year earlier than planned is negligible and would be more appropriately addressed as part of the next phase of the Toronto Green Standard. This report recommends that staff incorporate revised greenhouse gas emission limits as part of the planned update to the Toronto Green Standard Version 5 performance measures, which would - if adopted - come into effect in 2026. A report on an update to Version 5 the Toronto Green Standard is targeted for the fourth quarter of 2025, allowing for completion of the second phase of the Net Zero Transition Study and further stakeholder consultation.

the results of further analysis and consultation of energy and emissions performance measures resulting from the Net Zero Transition Study; and b. the feasibility of requiring mandatory embodied emissions caps for new development. 2. City Council direct the Interim Chief Planner and Executive Director, City Planning, in collaboration with the Executive Director, Environment and Climate and the Chief Building Official and Executive Director, Toronto Building, and in consultation with the building industry, to develop a training curriculum for building design and construction professionals on the Toronto Green Standard, including new and emerging technologies.