This microplastics filtration and research centre serves as a visible public statement about the process of cleansing the River Thames. Through its form and rammed earth/plastic walls, visitors can learn about the circular economy. Communal workshops fabricate soil and plastic composite blocks for commercial sale using microplastic fragments harvested from the river, with these material experiments displayed within a large hall. Visitors also get to rediscover the river's beauty by exploring the filtration chamber out on a pier.

The multilayered filtration of river microplastics becomes a substitute for traditional aggregates in rammed earth construction. Research involved scaled tests using microplastic aggregate and dredged material from the Thames. Regarding the design, the intention is for a building that emerges from the river, with the contrast between fine wooden structures and rough rammed earth/plastic walls creating immersive, colourful interiors.

Obtaining construction materials from the river and fabricating the architecture in situ minimises the environmental impact. At the end of its life the building can be broken back down into its essential components, enabling the retrieval of plastic aggregates in 50–100 years. Other environmental strategies include renewable non-carbon energy produced by tidal turbines that sit in the river and power the building’s hydraulic system.