The first tower in the City of London to be designed since the economic crisis in 2008, 100 Bishopsgate is a mixed-use development. A new public square is created at the heart of the two acre site, with new routes drawn across it. The form of the tower component, generated by the transition from a parallelogram at its base to a rectangle at its top, resolves the complex geometries of the site and context. In combination with contrasting façade textures and articulated junctions repeated rotationally around the building, this transition in form lends the tower a distinctive twisting dynamic.