Design development led to a bold geometric paving pattern which takes inspiration from fashion designer Alexander McQueen and the 20th century artist M. C. Escher. We were certain from the outset that we did not want to use a standard piece of paving on the scheme, and through lengthy design iterations developed a set of 9 mosaic pieces which give a crafted and unique quality to the space. 3D development allowed accurate stone cutting, reducing wastage on site, and improving quality control of the installation. On the roof terrace, the design of the bench and planting bed was dictated by the location of the window cleaning equipment, which we sought to disguise. Both inconspicuous and sculptural, this sinuous white Corian bench wraps around the very edges of the terrace whilst its varied height creates ample soil depth. The design of the planting bed opens up two spectacular views for the building’s users to St Paul’s and the City of London beyond. Gustafson Porter’s 3D design files were used by the manufacturer at construction stage which ensured a consistency in the realisation of the design from concept through to installation.