Lloyd Alter

Lloyd Alter

Design Editor / Toronto, Canada

Lloyd Alter has been an architect, a real estate developer, a prefab entrepreneur, and now teaches Sustainable Design at Ryerson School of Interior Design.


Lloyd has been writing for TreeHugger since 2005 about architecture, design, transportation and planning; he is design editor and was previously managing editor. He has written for MNN since 2015. He has contributed to The Guardian, Corporate Knights Magazine, Azure Magazine, Architectural Record and Greensource.

Lloyd has been a regular speaker or moderator at Passive House conferences in Seattle, Vancouver, New York City, Boston, Vienna, and Munich. He has also spoken about green building in Vancouver, Toronto and Moose Jaw, Saskatchewan.

Prior to writing, Alter was a promoter of tiny homes and prefabricated housing, lecturing on prefab at conferences in Los Angeles, San Francisco, and Austin, Texas. He has also worked as a real estate developer, building condominiums in Toronto, Canada, and as an architect.

Lloyd was Chairman of the Toronto Society of Architects, Vice President, Ontario Association of Architects, and President, Architectural Conservancy of Ontario.


  • 2015 Mary Millard Award for contribution to Architectural preservation
  • 2014 USGBC Leadership Award, for promotion of green building
  • Ontario Renews Award and two Toronto Historical Board commendations for architecture and development work


Lloyd has a Bachelor's of Architecture from the University of Toronto where he was awarded the Alpha Rho Chi medal. He was admitted to Ontario Association of Architects in 1979.

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