100th Anniversary of the Faculty of Letters
The graduate school building was completed in 1992 after the renovation of the former Tamachi School building along Sotobori Street. Subsequently, the graduate school building in the Fujimi area was demolished, and the Boissonade Tower (completed in the spring of 2000) was constructed on the site. That was the beginning of the Ichigaya redevelopment project. The Second 58th Building by the back gate was demolished and replaced by a ramp leading to the underground parking lot of the Boissonade Tower. 2005 saw the demolition of the Student Hall and the completion of the outer moat school building in the spring of 2007. The first school building, which was built in 1927 and was not destroyed by air raids, was the oldest school building used as a library until the 80th Anniversary Building was built, and was demolished when the Outer Moat School Building was completed in the summer of 2016. The gate building was completed in the summer of 2016. Each time the school building was demolished, excavations were conducted, and remains from the Jomon to modern periods were discovered. Subsequently, the 511 classrooms of the 55th year building will be demolished and the Ouchiyama School Building will be constructed on the south side of the 55th and 58th year building (completed in March 2019). Finally, the Ichigaya redevelopment project finally came to an end in January 2021 after the demolition of the 55/58 building and the construction of the central plaza.
During this time, the Ichigaya Campus has undergone significant changes in the 21st century, including the acquisition of neighboring buildings and the renovation of school buildings. The current status regarding each building is summarized below, but first, please take a look at the video that gives you an idea of the new campus.

The newest building is the Ouchiyama Building, an eight-story building with classrooms on the upper floors, administrative offices for each faculty on the first floor, and the School of Correspondence Education on the third floor. The exterior design of the building is a continuation of the design of the 55-58 Building, with the words "If you don't learn, you won't think, if you think you won't learn, you'll lose." from the Analects of Confucius written by President Hyōei Ouchi when the building was completed, which was on the first floor of the 55th Building in front of Room 511, relocated to the first floor.

The relocated passage from the Analects of Confucius
In addition to medium and large classrooms that can accommodate 250-500 students, the Ichigaya Campus has the largest cafeteria "Tsuzuhi" with 502 seats, a student hall, the Orange Café (snack hall), stores, and the Orange Hall (multipurpose hall).
For many alumni, the building was primarily used as a library, but from the third floor up, it has been used as laboratories and meeting rooms. A nameplate, handwritten by President Tetsu Nakamura at the time of its completion, is located by the back gate facing Fujimizaka. The nameplate states that the building was constructed on the site of the former residence of Ernest Satow, a British diplomat who was active in Japan at the end of the Edo period and during the Meiji period (1868-1912).

Nameplate by the 80th Anniversary Hall
Because it was built on the site of a former student hall, in addition to classrooms, there are a number of facilities to support students' extracurricular activities. In addition to music practice rooms, ateliers, and a multi-purpose hall, there are also student lounges, study rooms, and Japanese-style rooms, as well as numerous meeting rooms for use by clubs. In addition to the Student Center and Career Center, there is the Sattva Hall, a large hall with a capacity of 870 people, medium and large classrooms with a capacity of 200-400 people, and seminar rooms with a capacity of 30 people, as well as a convenience store.
The 27-story building with four basement levels was reconstructed on the site of the former graduate school building and the second 58th building. The lower floors include an information laboratory, the "Forest Garden" cafeteria, and the "Helios" student hall, while the upper floors include research laboratories and faculty reference rooms. For this centennial event, a Noh performance by the Institute of Nohgaku, which is closely associated with the Faculty of Letters, will be held in the Sky Hall. The Sky Hall faces east, from which one can see the Sky Tree, the Budoh Hall, and the Tokyo Dome. From the hall on the 26th floor facing the west, visitors can look out over the Shinjuku subcenter to Mt.
It protects the safety of students, graduate students, faculty, and staff during the hours when the university is open.
The school building was acquired when Kaetsu Girls' Junior & Senior High School moved to the new location, and has been in use since 2006. It has seven stories above ground and two below, and in addition to small classrooms, there is a gymnasium, a cafeteria, and an information cafeteria. The French-style garden in front of the building is a space for students to relax.

Fujimizaka School Building and Courtyard Garden
The gymnasium was built in 1975 and is now an old building. Many alumni may remember physical education at the Tama campus. The Tama campus was completed in the mid-1980s, and since then, physical education classes have been held at Tama. For those of you who graduated much earlier, you may have been at Kizuki (Musashi-Kosugi, now Hosei Daini High School); all students enrolled since 2008 have had their PE classes here at the Ichigaya Campus. With the acquisition of the Fujimizaka Building, two gymnasiums are now available to offer physical education at the Ichigaya Campus.
The former 62nd Building was renovated and the Faculty of Engineering and Design currently uses this building. The interior is so new and different looking that those who know the former 62nd Building will find it hard to believe that it is the same building.
The Center for Solidarity-based Society is an institution that works closely with the United Graduate School (Institute for Solidarity-based Society) and supports its educational activities.
Facing Sotobori-dori Avenue and located next to the Graduate School building, the 10-story building with two basement levels is mainly used as classrooms for the Graduate School of Engineering and Design and the Japanese Language Program, as well as for graduate student laboratories for the liberal arts graduate program.
Renovated on the site of the former Tamachi School Building, the 13-story building with one basement level was completed in 1992 and is used for graduate student education and research.
The former 69th Building was renovated and is now used as the Law School Building.
The building has six stories above ground and one below, and is used as a building for the Graduate School of Innovation Management and the Graduate School of Policy Creation, both of which are professional graduate schools.
Hosei University related goods are sold on the first floor of this building. Hosei
The Kudan School Building, with 10 floors above ground and 2 floors below, houses the administrative offices of Hosei University as a whole. The Kudan Annex, located behind the Kudan Building, houses the International Research Institute of Japanese Studies.
In April 2020, the Hosei Museum was opened on the first floor of the building.

Hosei Museum 1st floor exhibition floor
This is the site of the 55th and 58th Wings, which were the representative school buildings of the Ichigaya Campus. The paving stones are designed to follow the floor pattern of the first floor of the 58th Building. In addition, concrete stools have been installed where the columns used to be. These stools serve as a reminder that the 55/58 pavilion once stood in this location. It also offers a view of the Ouchiyama School Building, which has the facade of the 55/58 Building, and the Ouchiyama Garden, which recreates the shape of the pond that existed when the 58th Building was built, and serves as a place to carry on the memory of the Ichigaya Campus. In the evening, the stools and plantations are illuminated, creating a different atmosphere from that of the daytime.

Memorial Corridor
The Ouchiyama Garden was considerably reduced in size due to the redevelopment of Ichigaya, but it still exists today. Plantings have been increased, and water springs from the top of the hill on the side of the 80-year pavilion and flows into a water feature that surrounds the entire garden. Koi fish are also released here. Unfortunately, there are no benches in the garden, but the view of the garden is refreshing. In addition, the outer moat school building and the gate building also have rooftop gardens.

Current Ouchiyama Garden
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The features of each department are presented from the perspectives of the past, present, and future. Please click on the link for each department on the top page.
Hosei University's Faculty of Letters Centennial Event "The Past, Present, and Future of the Faculty of Letters: One Hundred Years of Treasures" was held on October 15, 2022, via live streaming. The first part of the archived video can be viewed at this link.
Hosei University's Faculty of Letters Centennial Event "The Past, Present, and Future of the Faculty of Letters: One Hundred Years of Treasures" was held on October 15, 2022, and was streamed live. The second part of the archived video can be viewed at this link.