Shinjuku Yotsuya Citizens Center, completed in 1997, stands as a significant multipurpose civic facility in Tokyo's Shinjuku Ward. Designed by Contemporary Architecture Institute, this versatile building seamlessly integrates diverse functions including a theater and hall, welfare facilities, administrative offices, and a library within its unified structure. The center exemplifies late 1990s Japanese civic architecture, balancing public accessibility with functional efficiency. Located at 87 Naitō-chō, the facility serves as an important cultural and administrative hub for the local community, reflecting thoughtful architectural planning that accommodates multiple community needs under one roof.