Graeme Stewart FRAIC OAA RPP CAHP is Principal of Toronto-based ERA Architects, and a Founding Director of the Tower Renewal Partnership, a cross-sectoral collaborative supporting the decarbonization of Canada’s existing affordable housing stock through research, policy and action. Through these efforts Graeme and his team have helped to kickstart deep retrofit in housing across Canada and has directly overseen the retrofit of over 1,500 units of housing in the Toronto region. Projects include the Ken Soble Tower, the first PassiveHouse certified retrofit of a high-rise residential building in North America. Graeme is a member of the Toronto Community Housing Design Review Panel and a regular lecturer in Universities in Ontario and abroad. He is also the co-editor of Concrete Toronto: A Guidebook to Concrete Architecture from the Fifties to the Seventies, and a recipient of the Jane Jacobs Prize for his ongoing work related to Tower Renewal.