Big Step stands as a notable work by the Environment Development Research Institute, representing an intriguing chapter in Japanese architectural practice. Though specific details regarding its location, completion date, and primary function remain undocumented, the building reflects the research institute's innovative design philosophy and experimental approach to contemporary architecture. The project exemplifies the institute's commitment to exploring new spatial concepts and environmental design principles. For architecture enthusiasts, Big Step offers valuable insights into the creative thinking and architectural methodologies developed during its era of design and construction.