A Laundry Built in Concrete on an Isolation Island
On the eastern side of Nagashima, beside the old bathhouse and facing east, stands a single-storey reinforced-concrete building five bays wide and two bays deep. A doorway opens at each bay along the front, while tall, narrow windows run along the sides and back. Completed in 1930 and covering about 156 square metres, this was the laundry of Nagashima Aiseien, the first national sanatorium in Japan for people with Hansen's disease.
For most of the twentieth century, Japanese law confined people diagnosed with Hansen's disease to sanatoriums for life. Much of the daily work that kept these institutions running was done by the residents themselves, as assigned labour. Washing the bedding and clothing of a community that grew to thousands was heavy, constant work, and this building was where it happened.
Why an Ordinary Workplace Matters
The laundry was registered as a Tangible Cultural Property in March 2019, listed under the criterion for contributing to the historic character of the landscape. Its structure and exterior finish remain close to their original state, which is part of what earned the listing. The more telling point is the material itself.
Reinforced concrete was an expensive choice in 1930, normally reserved for important buildings. That even the laundry was built this way points to the special status of Aiseien as a project run directly by the Home Ministry, planned and funded as a national showcase. A utilitarian workplace built to last in concrete records that ambition as plainly as any grander building on the island.
The Hygiene Cluster by the Hill
The laundry sits next to the former bathhouse, and the two are best seen together as the part of the compound given over to washing and cleanliness. The row of doorways across the front and the regular windows give the building a workmanlike rhythm that reflects its purpose. Standing here, it is easy to picture the flow of laundry in and out and the labour that filled the space each day.
The building is normally viewed from outside, usually on a guided walk that begins at the Nagashima Aiseien History Museum in the former administration building. Reservations are required, and the island remains home to residents, so visits are made with care and on set terms.
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Questions and Answers
- Why is a laundry treated as a cultural property?
- It survives close to its original form and contributes to the historic character of the sanatorium landscape. Building even the laundry in reinforced concrete also shows how much was invested in Aiseien as a national project, which gives the structure value as evidence.
- Who did the laundry work?
- Much of the everyday work of the sanatorium, including the laundry, was carried out by residents as assigned labour. It was demanding work for a community that eventually numbered in the thousands.
- What does the criterion for landscape contribution mean?
- It recognises buildings that help define the historic character of a place. The laundry, together with the neighbouring bathhouse and other surviving structures, forms part of the coherent early-Showa landscape of the sanatorium.
- Can I look inside?
- It is generally viewed from outside as one of the registered buildings. Access is arranged through the History Museum, by reservation, with respect for the residents who still live on the island.
- How do I get there?
- Nagashima is linked to the mainland by the Oku-Nagashima Bridge of 1988, the Bridge of Human Restoration. By car it is about ten minutes from the Mushiake interchange on the Okayama Blue Line; buses run from Oku Station on the JR Ako Line. Book a visit through the History Museum first.
Basic Information
| Name | Former Laundry, Nagashima Aiseien (Nagashima Aiseien Kyu-Sentakuba) |
|---|---|
| Location | 6539 Mushiake, Oku-cho, Setouchi City, Okayama Prefecture |
| Designation | Registered Tangible Cultural Property (Buildings) |
| Registration date | 29 March 2019 |
| Registration number | 33-315 |
| Structure | Reinforced concrete, single storey, five bays by two bays; building area about 156 square metres |
| Year | 1930 (early Showa period) |
| Quantity | 1 building |
| Owner | National Sanatorium Nagashima Aiseien |
| Access and viewing | Exterior viewing, by reservation through the Nagashima Aiseien History Museum; via the Oku-Nagashima Bridge |
References
- Database of National Cultural Properties, Agency for Cultural Affairs: Nagashima Aiseien Former Laundry
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00012814
- Nagashima Aiseien History Museum
- https://www.aisei-rekishikan.jp/
- National Sanatorium Nagashima Aiseien (Ministry of Health, Labour and Welfare)
- https://www.mhlw.go.jp/seisakunitsuite/bunya/kenkou_iryou/iryou/hansen/aiseien/
- Nagashima Aiseien, Leprosy.jp (Sasakawa Health Foundation)
- https://leprosy.jp/japan/sanatoriums/sanatorium07/
Last verified: 2026.06.25