Seigakuin University Chapel and Lecture Hall, completed in 2004, represents a significant contemporary addition to the university campus in Ageo, Saitama Prefecture. Designed by the Koyama Hisao Architects office, this facility exemplifies modern institutional architecture that seamlessly integrates spiritual and educational functions. The building demonstrates thoughtful spatial planning and refined architectural expression characteristic of Koyama's practice. Its design thoughtfully responds to the university's Christian educational mission while providing versatile spaces for academic gatherings and worship. The structure showcases contemporary design principles applied to religious and pedagogical architecture, making it of particular interest to those studying modern Japanese institutional buildings and their cultural significance.