This thesis investigates how geobased materials can restore sustainable value chains through a social, ecological, and technological framework while enhancing the regional landscape and built environment. It combines material research with design to propose a grounded architecture for farewell rituals.

The first part examines clay and earth materials, focusing on sustainable extraction, thermal performance, and tectonics. It proposes a hybrid system using a durable fired clay outer shell with an inner layer of unfired earth bricks to optimize durability, moisture regulation, and thermal mass.

The second part applies these findings to the design of a farewell centre and natural cemetery, Gedenkpark Leijsenakkers, located in the Heilige Driehoek area of Oosterhout. The design integrates local materials and ecological strategies such as water buffering and ecological gradients to create a slow, contemplative architecture that harmonizes with the landscape. The project offers a mineral-based alternative to typical crematorium typologies, emphasizing material care and regional identity.