Our proposal for the redevelopment of Elizabeth House was to deliver 1,3m ft2 of workspace in a building associated with an important transport node. The approach was to use this volume to project Waterloo and the South Bank onto the London skyline. Our ambition was to complement the existing skyline with an intricate profile, an urban sculpture creating a vertical landmark for Waterloo. Seeking inspiration in the work of Max Bill, Brancusi, and Tony Cragg, we envisioned a tower that would be a complex, shifting silhouette, changing dramatically when viewed from different points along the river. This unstable silhouette would differentiate the building from other towers in the London skyline and embody multiplicity as a contemporary urban quality.