A concrete bank that outpaced its town
In 1925 a two-story building rose on the main street of Miyahara, a small merchant town in central Kumamoto, and it was made of reinforced concrete. The material alone set it apart. The rest of Miyahara was timber and plaster, the low tiled roofs of a former post town on the old Satsuma Kaidō highway. The new structure belonged to the Iseri Bank, founded here in 1918, and its frame announced that a country bank could carry itself like an institution in the capital.
The footprint is modest, about 106 square meters, yet the building reads as solid and deliberate. Its front is strictly symmetrical. Four pilasters run up the facade, each finished with an unusual stylized capital, and a band of geometric ornament crosses the center of the parapet at the roofline. Japanese architects of the 1920s called this manner Secession style, borrowing from the Viennese movement that dropped classical detail in favor of clean lines and abstract pattern.
One fact gives the bank its quiet weight: it was a local product. Both design and construction stayed in the area, with the Masunaga-gumi as contractor. For a provincial town to raise its own reinforced-concrete building in the newest European-derived idiom, in 1925, says a good deal about Miyahara's confidence at the time.
From banking hall to community room
Work began in 1924 and the head office opened the following year. After the war the premises passed to the Higo Bank, which kept a Miyahara branch here for decades. When the branch eventually closed, the building could easily have been lost. The town bought it in 1994 and, from 1995, turned it into a base for resident-led local projects. That history sits behind the present name, the Machizukuri ("town-making") Information Bank.
National recognition came in 2004, when the building entered Japan's register of Tangible Cultural Properties under the criterion for works that set a standard in design. Registration is a lighter form of protection than designation as an Important Cultural Property, and it fits a building still in daily use, still holding its place on the street.
What to notice when you visit
Cross to the far side of the street, where the town office annex faces the bank, and the facade composes itself almost like a drawing. The four pilasters divide the front into even bays. Their capitals are the strangest feature: not Corinthian leaves or Ionic scrolls but blocky, invented forms that answer to no historical order, exactly the kind of detail Secession designers liked to devise.
Then look up. The geometric band across the parapet is the building's signature, a flat run of repeated shapes that picks up a shadow in low, raking light. The window surrounds carry their own restrained trim. Nothing here shouts. The reward is in the proportion, and in edges that have stayed crisp for a century.
The interior now works as community space and gallery, so during opening hours you can step inside, take in the volume of the old banking hall, and gauge how compact the whole operation once was. Entry costs nothing.
A gallery for a hometown ballplayer
Since October 2015 the building has also held a gallery for Koji Akiyama, a baseball star born in this town. Akiyama was one of the leading outfielders of the Japanese game in the 1980s and 1990s: a home-run title in 1987, a "triple three" season in 1989 (a .300 average with 30 home runs and 30 stolen bases), eleven Gold Gloves, and more than 2,000 career hits. He later managed the SoftBank Hawks to a national championship. The cases hold the bat from his 2,000th hit and his Gold Glove awards. If early-Shōwa architecture is not your reason for stopping, the gallery supplies another.
Around the building
The bank stands in the old core of Miyahara. The town kept a station on the Satsuma Kaidō and once housed the district magistrate's office, which made it an administrative center for the surrounding country under the Edo-period domains. A stretch of the old highway still runs one block east of National Route 3, with older merchant houses scattered along it.
Right next door is the former Iseri family residence, now the "Machizukuri Sake Shop," another registered property whose main house dates to 1832. Seeing the family home and the family bank side by side is the easiest way to read the rise of the Iseri.
For a complete change of register, Tategami Gorge lies a short drive away: a wall of Paleozoic limestone about 75 meters high, cut by the Hikawa River and known locally as the "dry waterfall of Higo." The Miyahara Sanjingū shrine and a cluster of large keyhole-shaped burial mounds from the sixth century are also within the town.
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Q&A
- Can I go inside, and is there an entry fee?
- Yes. The building is open to the public from 10:00 to 17:00, and admission is free. It closes on Mondays, public holidays, and over the New Year period (December 29 to January 3).
- Is it still a working bank?
- No. It was built for the Iseri Bank in 1925 and later served as a branch of the Higo Bank after the war. Since the 1990s it has been owned by the town and used as a community facility.
- What does "Secession style" mean here?
- It refers to a 1920s design fashion in Japan that drew on the Vienna Secession, an early-modern movement favoring straight lines and abstract, geometric ornament over classical columns and carving. The bank's plain pilasters and the geometric band on its parapet are typical of it.
- Why is there a baseball gallery inside?
- Koji Akiyama, a Hall-of-Fame outfielder and later a championship-winning manager, was born in this town. A gallery devoted to his career was added in 2015 and displays items such as the bat from his 2,000th hit.
- What else is worth seeing nearby?
- The former Iseri family residence stands next door, and the old Satsuma Kaidō streetscape runs through the town center. Tategami Gorge and the Miyahara Sanjingū shrine are short drives away.
Basic Information
| Name | Hikawa Machizukuri Information Bank (Former Iseri Bank Head Office) |
|---|---|
| Location | 35-1 Miyahara-Eikyū, Hikawa-machi, Yatsushiro-gun, Kumamoto |
| Designation | Registered Tangible Cultural Property (Building), Japan |
| Registered | February 17, 2004 (gazetted March 4, 2004); registration no. 43-0066 |
| Registration criterion | A structure that sets a standard in design |
| Built | 1925 (begun 1924) |
| Structure | Reinforced concrete, two stories; building area approx. 106 m²; one building |
| Builder | Masunaga-gumi (local firm); design and construction both local |
| Owner | Hikawa Town |
| Hours | 10:00–17:00; closed Mondays, public holidays, Dec 29–Jan 3; free admission |
| Contact | Miyahara Branch Office, Regional Development Section, Hikawa Town Hall, Tel. 0965-62-2311 |
References
- 国指定文化財等データベース（文化庁）— 氷川町まちづくり情報銀行（旧井芹銀行本店）
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00003926
- 文化遺産オンライン — 氷川町まちづくり情報銀行（旧井芹銀行本店）
- https://bunka.nii.ac.jp/heritages/detail/180146
- 氷川町 観光情報 — 氷川町まちづくり情報銀行・秋山幸二ギャラリー
- https://www.town.hikawa.kumamoto.jp/kanko/kiji0033721/index.html
- 氷川町 — 氷川町まちつくり酒屋（旧井芹家住宅）
- https://www.town.hikawa.kumamoto.jp/kiji0034798/index.html
Last verified: 2026.06.20