With its strong history in trades and technical training, the Underdale High campus was previously dominated by a mass of transportable buildings and asphalt connections. The trade focus will continue with a reconfiguration and extension of the automotive building to include metalwork, but demolition of ten transportable buildings, and more structured landscaping, will help to soften the school into its setting alongside the River Torrens.
A significant addition includes a new creative arts centre for music, art and drama studies, to be collocated with a new school canteen. Few buildings in the school will remain untouched, with refurbishments detailed for the main entry, a new two storey administration building, extension to the existing gymnasium and a further refurbishments creating four science laboratories and general learning areas in other parts of the site.