Iwakuni Comprehensive Government Building and Yamaguchi Prefectural Citizens' Cultural Hall, completed in 1996, represents a thoughtful integration of civic functions designed by renowned architect Sachao Otani. Located in Iwakuni, Yamaguchi Prefecture, this mixed-use facility combines a modern theater and cultural hall with administrative offices. Otani's design demonstrates his characteristic approach to harmonizing public spaces with contemporary architecture. The building serves as both a cultural venue for the community and an operational center for prefectural administration, exemplifying efficient urban planning and functional modernism in late 20th-century Japan.