Architect and Builder June 2017 | Page 51

The Composition The building sits on a basement, which accom- modates parking and primary building services. This basement required the excavation of almost the entire site, with contractors picking through an area of 190 x 35m, down to ±7m deep almost entirely into Malmesbury Shale. The resultant two level parking basement provides the required 350 parking bays. The roof of the basement forms a common podium over which the building is then divided into two halves. As Dock Road dips towards the mid-point of the site, the podium appears to elevate itself out of the ground, a condition which Waterway House also occurs consistently along the canal edge. Rock that was excavated out of the basement has been used to clad the raised podium along the canal edge. Although actually separate structures, these two buildings share a common design language and have similar, mirrored floorplates – which are adapted at each end to the particular constraints of the north and south site boundaries. The two buildings are coupled at the centre of the site by a suspended and semi-transparent link bridge on the second and third floors. This bridge, and the space below, allows a view corridor from Table Bay to the Noon Gun on Signal Hill. 51