Separate from the brick podium is the office tower proper, its curtain walls incorporating sun shading to improve thermal performance. Expanding this texture further, the patterns of historic roofs hidden from view are writ large upon the inclined glass face of the tower above. A new geometry for sun blades is drawn from the old roof patterns.
The site's constraints are many and varied. The building's structure responds to heritage facades, electrical infrastructure easements, adjacent buildings and the Melbourne underground rail link tunnels directly below the site. The resultant structural frame is uniquely shaped - a very specific response to its context.