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Toronto Society of Architects publishes Open Letter on Ontario’s Bill 5 and Bill 17

Lucy Mazzucco June 30, 2025 3 min read
Canadian Architect
Toronto Society of Architects publishes Open Letter on Ontario’s Bill 5 and Bill 17
AI Article Summary

The Toronto Society of Architects (TSA) has released an open letter expressing its concerns over Ontario's Bill 5 and Bill 17, which aim to accelerate development but at the cost of weakening environmental protections and eliminating green building bylaws. The letter criticizes the Ontario government's expedited legislative process, emphasizing the negative implications these Bills could have on building efficiency and sustainability. TSA argues that while there is a critical need for affordable housing, it should not come at the expense of the environment or long-term building quality.