The project looks to rediscover clay as a viable substitute for its modern day material replacement. Materials like concrete have been an optimistic building material, one that is thought to solve many problems. However its proliferation has put a strain on many systems. What this project looks to uncover is not about the process but about the locality of the material source and the impact of extraction.

The project proposes that Transport for London take advantage of the waste material they produce when improving and extending the current rail system. One benefit of excavating in London is that most of the excavated material is London Clay. However the excavated material is generally used to cap existing landfill. Clay may not be able to replace concrete but it can look to dethrone concrete and create a diversity of material choice; this would reduce pressure on any particular material and therefore the environment in which that material is sourced.

The project focuses on South Kensington Station which is in need of refurbishment, to demonstrate the capability and capacity of Transport for London, with South Kensington being one of its landmark stations.