Canadian studio Icon Architects has released its design for a 31-storey tower in Toronto that, if completed, will be the tallest mass-timber structure in North America.

The structure has been proposed for downtown Toronto, near the University of Toronto. If approved by the city, the structure will be 90 metres tall, making it the tallest mass-timber structure in North America.

Depending on the status of other designs – including a 100-metre-tall tower designed by Schmidt Hammer Lassen planned for Switzerland – the Toronto tower could be the tallest mass-timber structure in the world.

Planned as a residential tower, the studio will use cross-laminated timber (CLT) as the material for the tower's floors and for some of its walls, according to Icon Architects.