The Yamaguchi Houshu Memorial Hall, completed in 1991 in Hayama, Kanagawa Prefecture, stands as a significant residential and museum space designed by Plantech. This architectural work honors the legacy of Yamaguchi Houshu, a renowned artist, while serving as both a private residence and cultural facility. Nestled in the picturesque coastal community of Isshiki, the building exemplifies thoughtful design that balances residential comfort with museum functionality. The structure's completion in the early 1990s reflects contemporary architectural sensibilities, showcasing how modern design can respectfully integrate commemorative and domestic purposes within a single cohesive composition.