Reclaimed Lumber PART VII Utility Pole Fortress is a distinctive residential structure completed in 1979, located in Iruma District, Saitama Prefecture. Designed by architect Kokuraku, this innovative dwelling exemplifies experimental approaches to sustainable building practices. The structure's unconventional name reflects its creative use of reclaimed materials and utility pole elements integrated into its design. Built during a period of increasing environmental consciousness, this residence demonstrates how architects were beginning to explore alternative materials and construction methods. The building stands as a notable example of 1970s residential architecture that challenged conventional design principles and material selection in Japanese housing design.