The selection of exposed visual concrete for both buildings was both a reference to the dominant palette of the Colchester campus, and an opportunity to deliver a pair of highly crafted buildings in a material which reflects the academic intentions and aspirations of the University. The design incorporates exposed concrete inside and out, expressing the elemental structural forms of the buildings with a restrained palette of additional materials slotted within the primary frame. Large, smooth cast panels with carefully controlled joints and restraint ties sit alongside areas of rough textured boardmarking to distinguish the solid, grounded elements from the monumental columns and cantilevered slabs.

Working with visual concrete demands a great deal from both designers and contractors. With the final product revealed on striking the mould, it is unforgiving; as much a product of skilled joinery, chemistry and fortune as of architectural intent. Working with MPA The Concrete Centre and industry specialist David Bennett during design and into construction, the light coloured mix and casting techniques were developed by the contractor MJ Gallagher through a period of sampling and testing before finally emerging above ground.

The finished buildings, with subtle variations across the monolithic material, bear witness to the complex effects of time and temperature on the casting process.