The interior, including the stained glass, is kept in the original state. Even today, this historical building is still in use as an academic building of Seisen University.
The western building designed in the Renaissance style was designed by the English architect, Josiah Conder. After the completion, the interiors the building were designed by Seiki Kuroda who was an artist of Western paintings. Later on in 1962, it was purchased by Seisen University and since then it has been used as its academic building with the thought that the students can study in a real cultural environment. In 2012, it was acknowledged for its historical significance and was registered as Tokyo Metropolitan area-designated tangible cultural property. The interior of the building such as the sculptures on the fireplaces, the staircase handrails and the stained glass are all kept in the same state as when they were constructed and since it is used as the main building of Seisen University, the days when the building can be visited by outsiders are limited to dates like official opening days, the annual garden party or during the campus festival. Please check in advance. It is a 10-minute walk from ”Gotanda” Station accessible with the JR Yamanote Line, the Toei Subway Asakusa Line or the Tokyu Ikegami Line.