101 Collins Street – Melbourne The 101 Collins Street buiding was designed by Denton Corker Marshall. Homage to classical building forms is evident, yet  the inclusion of elegance and modern technology ensures 101 Collins Street is a building of  'today' and an enduring architectural landmark for  'tomorrow'. The Column-free floor plan design, which incoprates unique glass buttresses on four sides of the tower, deliveers to tenants not only spectacular 360 degree views around Melbourne's environs, but also unparalled office layout opportunities.