A V-Shaped Building on an Awkward Corner
Some of the most inventive buildings begin with a difficult site. In 1924, Tohoku Imperial University in Sendai needed a home for its Department of Biology on a sharply angled plot at the edge of Katahira Campus. The solution was a three-story reinforced concrete building laid out in the shape of the letter V, its two wings following the converging streets and its apex resolved into a rounded cylindrical wall. A century later, the former Biology Department building still turns that tight corner with unusual grace, and in 2021 it was registered as a National Registered Tangible Cultural Property.
According to the university's cultural property guide, this was among the earliest reinforced concrete buildings in Sendai and the first erected by Tohoku Imperial University. Concrete construction was still a young technology in Japan; the Great Kanto Earthquake of the previous year had just demonstrated its resilience, and universities were quick adopters.
Secession Touches and a Balanced Elevation
The walls tell a two-part story. The lower section is finished in mortar worked to resemble stone masonry, while the upper stories are faced with brick tile and lined with tall, narrow windows. The entrance surround shows the influence of the Vienna Secession, the turn-of-the-century movement whose geometric ornament filtered into Japanese institutional architecture in the 1910s and 1920s. The official description praises the building as a fine work in which proportion and detail ornament achieve balance.
The rounded corner is the memorable moment. Where the two wings meet at their acute angle, the architect raised a cylinder of wall, softening what could have been a knife-edge into a calm curve. Glimpsed from the streets to the west, it remains one of the quiet pleasures of the Katahira neighborhood.
Inside, a single-loaded corridor runs along each wing, serving laboratories and lecture rooms. Renovations in 1995 and 2019 have kept the building, now known as Administration Building 7, in active service.
A Gallery Inside a Cultural Property
Most working university buildings keep their doors closed to visitors, but this one offers a way in. In October 2022, the ground floor opened as Tohoku University Gallery Historia, an exhibition facility with six rooms presenting the university's history through excavated artifacts from campus archaeological sites, materials on the registered cultural properties, and displays on the early Biology Department itself. The gallery opens on Tuesdays and Thursdays from 12:00 to 16:00, excluding holidays, and admission is free.
Seeing the exhibits and then stepping back outside to trace the V-plan on foot makes a satisfying pairing. The building stands a short walk from the other registered properties of Katahira Campus, which is open to the public and reachable in about ten minutes on foot from Aoba-dori Ichibancho or Itsutsubashi subway stations.
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Q&A
- Can I go inside the building?
- Partially. The ground floor houses Tohoku University Gallery Historia, open Tuesdays and Thursdays from 12:00 to 16:00 (closed on holidays) with free admission. The upper floors are in university use and not open to visitors.
- Why does the building have a V-shaped plan?
- It was built on a sharply angled plot, and the two wings follow the converging site boundaries. The acute corner where they meet is finished as a rounded cylindrical wall.
- How old is the building?
- It was completed in 1924, which by the university's account makes it among the earliest reinforced concrete buildings in Sendai and the first built by Tohoku Imperial University. It was renovated in 1995 and 2019.
- What is the Secession style mentioned in descriptions?
- The Vienna Secession was an art and design movement founded in 1897, known for geometric ornament. Its influence appears in the entrance surround of this building, a common trait of Japanese institutional architecture of the 1910s and 1920s.
Basic Information
| Name | Former Biology Department Building, Faculty of Science, Tohoku Imperial University |
|---|---|
| Location | 2-1-5 Katahira, Aoba Ward, Sendai City, Miyagi Prefecture |
| Designation | National Registered Tangible Cultural Property (registered October 14, 2021; registration no. 04-0199) |
| Registration Criterion | Serving as a model of design |
| Structure | Reinforced concrete, three stories; V-shaped plan; building area 668 square meters |
| Year Built | 1924 (Taisho 13); renovated 1995 and 2019 |
| Owner | Tohoku University (National University Corporation) |
| Visiting | Gallery Historia on the ground floor open Tuesdays and Thursdays 12:00 to 16:00, free; other floors closed to the public |
References
- Agency for Cultural Affairs, National Cultural Properties Database — Former Biology Department Building, Faculty of Science
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00013911
- Tohoku University — Registered Tangible Cultural Properties
- https://www.bureau.tohoku.ac.jp/somu/bunkazai/kenzobutsu/
- Tohoku University — Katahira Campus
- https://www.tohoku.ac.jp/japanese/profile/campus/01/katahira/
Last verified: 2026.07.02