This paper shows the development of the activities of the Tokyo General Construction Workers Union from 1947 to 1965 as a genealogy of the architectural movement in Japan after WWII. This union is an industrial labor union established by construction workers such as craftsmen in 1947. The postwar architectural movement was led by architects and focused exclusively on housing as a social issue. Therefore, we understood their activities concerning housing from the perspective of its relationship with architects and discussed its subsequent development.
