House for Seaweed is situated on Beenbane Beach in Co. Kerry, Ireland. Responding to the current climatic damage of coastal landscapes, a mixed-use intervention combining an anaerobic digestion plant and thalassotherapy centre is proposed. The project aims to generate sustainable power while reimagining traditional Irish seaweed baths to preserve the culture of a diminishing indigenous community. Seaweed is used as an integral building material, shaping the architecture’s construction, functionality, and phenomenology.

The dual programme forms a self-sustaining circular system, challenging prevailing notions of power infrastructures as environmentally detrimental. Biomass residues from the thalassotherapy experience are utilised by the power plant downstream, while excess heat generated by the plant is used to warm up the baths.

Structures fortify eroded coastal cliffs to mitigate risks from rising sea levels, taking advantage of the site’s scenic beauty. Vernacular construction methods are used to craft immersive interior spaces for visitors. Overall, the project presents a sensory and site-sensitive alternative to the function and aesthetics of conventional power plants.