Architecture has traditionally focused on human-centred practices, emphasising control over construction processes and creating internal environments that separate humans from their external surroundings. The growing interest in posthuman theories introduces the concept of nonhuman agency into this predominantly human-centric field. This research seeks to explore the potential tensions between traditional design practices, such as architecture, and the impacts of nonhuman agency on associated design and construction processes. Building on experimental design research at the intersection of art, design and architecture, this research seeks to contribute to posthuman design discourse by critically examining the implications of occultural and degrowth themes through the design of a specific building located in the woods of Småland. The building is a method to explore the emerging design program of the research: human-nonhuman control relationships.