A Slender Concrete Tower Behind a Country Doctor's Clinic
When Takeuchi Masayasu opened his medical practice in the cotton-weaving town of Okada in 1929, the town had no piped water. So he built his own supply. Against the north wall of his house, beside the kitchen, stands a reinforced-concrete water tower barely taller than the second floor: four tapering legs about 2.8 metres high, leaning slightly inward, carrying a small tank at the top. It held a single day's worth of well water and fed it by gravity to both the clinic and the family home.
The whole structure reaches just 3.9 metres. The tank measures roughly 1.4 by 1.1 metres in plan and stands 1.1 metres tall. It is a modest thing, easy to walk past. Yet it is one of six elements of the former Okada Clinic now listed as Registered Tangible Cultural Properties, and it records something that grander monuments rarely do: how an ordinary household secured clean water before the modern utilities arrived.
The Doctor Who Came Home to Okada
Takeuchi Masayasu was born in 1882 and graduated in 1905 from the Aichi Prefectural Medical College, the school that later became the Faculty of Medicine at Nagoya University. He spent his early career as an army surgeon, posted to Manchuria and to garrison towns across Japan, and rose to the rank of colonel, eventually directing the army hospital in Toyohashi. After leaving the military he returned to the Chita Peninsula and, in 1929, opened the Okada Clinic in his home district.
The buildings he commissioned that year still stand together on a plot of about 660 square metres: a Japanese-style main house, a clinic wing with Western detailing, a tool storehouse, a concrete perimeter wall, and the water tower. A storehouse was added around 1931. By tradition the construction was led by Takeuchi Kakuzo, a local master carpenter also credited with the town's Kiraku-za playhouse, though the attribution is not firmly documented. Masayasu treated internal and surgical cases, served as head of the county medical association, worked as a school physician, and ran the clinic until his death in 1951.
Why a Water Tower Earns Cultural Protection
Japan's Registered Tangible Cultural Property system, introduced in 1996, recognises buildings roughly fifty years or older that contribute to the character of a place. It is a lighter form of protection than the National Treasure or Important Cultural Property designations, and it is designed to keep everyday historic structures in active use rather than freezing them as museum pieces. The Okada Clinic group joined the register on 17 November 2015, listed under the criterion of contributing to the nation's historic landscape.
The water tower's value lies less in engineering ambition than in evidence. Reinforced concrete was still a relatively new material for small private buildings in late-1920s rural Japan, and a household water tower of this kind is an unusually direct record of self-sufficient modern living. It shows a doctor importing an urban, almost industrial solution into a town that public infrastructure had not yet reached.
What to Notice When You Visit
The tower repays a close look. Its four legs are battered, splaying outward at the base and drawing together toward the top, a shape that lends a tall, narrow concrete frame its stability. The exposed concrete has weathered to a soft grey, and the surface still carries faint marks of the timber formwork it was cast against. Set low against the back of the house, it reads almost like a piece of standing furniture rather than a tower.
It also makes more sense once you take in the buildings it served. The clinic wing in front pairs a brick-coloured mortar lower wall with cornices above the windows, a tiled entrance, and a plaster relief over the door. The main house looks thoroughly Japanese from outside, yet its roof rests on a Western truss, and its formal reception room conceals plaster ceiling mouldings, sash windows, and coloured-glass transoms. The water tower is the practical counterpart to that quiet ambition, the part of the house that simply made daily life work.
The Cotton Town Around It
Okada grew prosperous on Chita cotton, woven here since the Edo period, and its gently curving main street is still lined with the black-boarded walls, plaster facades, and storehouses of former cloth merchants and mill owners. The district is compact and best explored on foot. A short walk from the clinic brings you to the Chita Okada simple post office, a pale-blue 1902 building that ranks among the oldest working post offices in the prefecture, and to Momengura Chita, a former cotton warehouse where visitors can try hand-weaving on traditional looms.
The former clinic itself remains in use. The clinic wing now houses a Chita-cotton weaving studio, while the main house serves for events and as rental space, with a small garden behind it. To reach Okada, take the Meitetsu Tokoname Line to Asakura Station, then a Chita bus bound for Higashi-Okada to the Okada stop; the old townscape is a few minutes' walk away. A local preservation society based at Momengura Chita can advise on which buildings are open on a given day.
- 📍 Plan Your Visit to Aichi
- Find tours, activities & transport passes near Former Okada Clinic Water Tower
- [ Nagoya Castle & Atsuta Shrine History Tours ]
Q&A
- Can I go inside the water tower?
- No. It is an outdoor structure, viewed from the grounds of the former clinic. You cannot enter it, but it is easy to see while walking through the site and the surrounding townscape.
- Is this the same as the Okada Clinic operating in Chita today?
- No. The heritage-listed former Okada Clinic, also known as Masayasu-tei, is a 1929 building. A separate, modern Okada Clinic elsewhere in Chita City is unrelated to it.
- Is there an admission fee or fixed opening time?
- The buildings are used by tenants and for events, so access to interiors varies by day. It is best to check ahead with the preservation society or the Masayasu-tei website. The exterior and the wider townscape can be walked freely.
- How much time should I set aside for Okada?
- A relaxed half-day is enough. The townscape, the post office, the weaving warehouse, and the clinic group all sit within easy walking distance of one another.
- Why build a tower if the town had wells?
- The town had no piped water in 1929. The tower stored a day's supply of well water and distributed it by gravity to the clinic and the house, in effect an early private waterworks.
Basic Information
| Name | Former Okada Clinic Water Tower (Kyu Okada Iin Kyusuito) |
|---|---|
| Location | 24 Kaito, Okada, Chita City, Aichi Prefecture |
| Designation | Registered Tangible Cultural Property (Building) |
| Registered | 17 November 2015 (Registration no. 23-0447) |
| Quantity | 1 unit |
| Structure and date | Reinforced concrete, height 3.9 m; built c. 1929 (Showa 4) |
| Part of | Former Okada Clinic (Masayasu-tei) complex of six listed structures |
| Access | A few minutes' walk from the Okada bus stop (Chita Bus from Asakura Station, Meitetsu Tokoname Line) |
| Public access | Exterior viewable as part of the Okada townscape; interiors of the associated buildings vary by tenant and event |
References
- National Database of Designated Cultural Properties (Agency for Cultural Affairs): Former Okada Clinic Water Tower
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00010804
- Masayasu-tei (Wikipedia)
- https://ja.wikipedia.org/wiki/%E9%9B%85%E4%BC%91%E9%82%B8
- Masayasu-tei (former Okada Clinic) - Okada Townscape, Chita
- https://okadamachinami.com/midokoro/machinami/masayasutei/
- Masayasu-tei - Chita City Tourism Guide
- https://chita-kanko.com/spot/detail/90/
- Cultural Properties of Chita City (Chita City)
- https://www.city.chita.lg.jp/docs/2020071000028/
Last verified: 2026.06.17