Architecture, Building and Structure Design Sumu Yakushima Residence by Tsukasa Ono Sumu Yakushima applies Regenerative architecture, a new approach developed that combines traditional Japanese civil engineering with contemporary technology. Designing the underground environment and engaging the buildings in a constructed mycelial network promotes biodiversity in the soil. Promoting the flow of air and water The buildings and decks are raised, dispersing wind flowing between the mountains and the sea without blocking it.Off grid energy from solar power and firewood.