Now called the Thornbrough Building, the Engineering Complex was completed in 1971 and officially opened in 1973. Although the complex has been through both renovations and additions, the original beton brut concrete on the stairwells is still apparent. It was originally designed by Herbert Agnew & Associates, Architects. Steven Teeple Architects completed an addition in the early 2000s and a further renovation to the building was completed by Perkins and Will in 2012/2013.