VANCOUVER, BC —  M5, a 25-storey, mass timber rental housing tower, one of the tallest in the world, will be the first residential building constructed at Main Alley, a tech campus in the Mount Pleasant area of Vancouver. The structure will be a net-zero lifecycle carbon tower. …The project, proposed by Westbank Corp. and Henriquez Partners Architects, was given the green light recently by Vancouver City Council. It will be 260 feet tall and have 210 rental homes. The panels of the exterior wall assembly will resemble the scales of a pine cone. The intention is to make the tower a replicable prototype to help British Columbia achieve a significant reduction in lifecycle carbon emissions, while addressing the crisis of affordable housing. “It is an open-source prototype for mass timber,” says Henriquez. This is a hybrid mass timber project which is almost 67 per cent timber.”