The Former Okada Clinic Wall: A Concrete Arcade in a Cotton Town

On the northern edge of a former doctor's compound in Okada, a district of Chita City in Aichi Prefecture, a low wall runs for thirty-three meters between two storehouses. It rises about 1.9 meters from a foundation of angled stone, and at intervals of roughly 2.3 meters it thickens into squared pillars. Between those pillars the wall curves into shallow arches, one after another, and near the midpoint a narrow gap was left open as an emergency passage. This is the Former Okada Clinic Wall, built around 1929 and entered on the national register of cultural properties in 2015.

The wall does not announce itself. Visitors walking the old streets of Okada often pass it without a second glance, their attention caught by the larger buildings nearby. Yet the wall is the piece that gives the compound its face along the road, linking a storehouse at one end to a tool storehouse at the other in a single continuous line of concrete and shadow.

The compound it belongs to was once the Okada Clinic. Today it is called Masayasu-tei, after the physician who built it. The main house, a clinic wing, a storehouse, a tool storehouse, a water tower, and this wall were all registered together as a single group, a record of one doctor's home and practice on the eve of the modern era.

The Army Surgeon Who Came Home

Takeuchi Masayasu was born in 1882 and graduated in 1905 from the Aichi Prefectural Medical College, the institution that would later become the medical faculty of Nagoya University. He spent much of his career as a military doctor, posted to Manchuria and to garrison towns across Japan, and rose to the rank of army surgeon colonel. Before retiring he served as director of the Toyohashi Army Hospital, now the Toyohashi Medical Center.

In 1929 he returned to the Chita region and opened the Okada Clinic in his home district. The buildings he commissioned blended Japanese and Western elements in the manner fashionable in the late Taisho and early Showa years: a Western-style consulting room and parlor, Japanese rooms ringed by corridors, and a garden said to have been laid out by a noted tea master. By local tradition the master carpenter was Takeuchi Kakuzo, the same builder credited with the town's Kiraku-za theater.

Masayasu intended his eldest son to inherit the practice. The son, working as a doctor in the Atsuta district of Nagoya, traveled out to Okada on weekends to help. He died in the Pacific War, and the succession never happened. Masayasu kept the clinic running until 1950, after which the property passed to relatives and, for a time, served as another physician's surgery.

Why a Garden Wall Was Listed

Japan's register of tangible cultural properties is a lighter form of protection than designation as a National Treasure or Important Cultural Property. It was created to safeguard the broad stock of buildings from the modern period that shape the look of ordinary streets and neighborhoods. The Former Okada Clinic Wall was listed under the criterion that it contributes to the historic landscape of the country, and that phrase is the key to understanding it.

A reinforced concrete boundary wall was an unusual choice for a private home in a provincial town in 1929. Concrete was still a modern material, associated with public works and city architecture rather than domestic compounds. To use it here, and to shape it into a rhythm of pillars and arches rather than a plain barrier, was a deliberate gesture. It reads as the work of a man who had lived in cities and army hospitals and brought their sensibility back to a cotton town.

The stone foundation beneath the concrete uses a technique called tanizumi, in which stones are set on the diagonal so the joints form a pattern of valleys and points. The result is a wall that sits on a traditional stone base yet carries a modern structure above it, the old craft and the new material stacked one on the other.

What to Look for on the Street

Approach the wall from the road and follow the line of arches with your eye. The pillars repeat at a steady interval, but the light does not: each arch holds its own pocket of shade, and the surface of the concrete shows the texture of nearly a century of weather. The emergency passage near the center breaks the rhythm, a practical opening that tells you this was a working compound and not a decorative folly.

Because the wall stands between two storehouses, it is best understood as one stroke in a longer composition. The storehouses themselves carry their own details worth a pause, from tiled gable roofs to the decorative ironwork beneath their eaves. Seen together, the storehouses and the wall present a single sweep of the property to the street, which is exactly the quality the registration was meant to preserve.

The wall is part of daily life in Okada rather than a roped-off exhibit. You can stand close to it, trace the curve of an arch, and step back to see how it anchors the northern boundary of the compound within the wider streetscape of the old town.

Around the Site: Okada, a Town Built on Cotton

The wall makes the most sense as part of a walk through Okada, which for centuries was the center of Chita cotton production. From the early Edo period into the 1950s, weaving supported the farming households of this district. The year the clinic was built, 1929, was also the year a new road opened through the town, bringing cotton mills, shops, and theaters. At its height the local industry employed around three thousand women in the mills.

That prosperity left a streetscape that still rewards a slow walk. Nearby stands the Chita Okada post office, built in 1902 and one of the oldest working post offices in the prefecture, its pale facade also on the national register. The Masayasu-tei compound, of which the wall is a part, is open as an event and rental space, and its former clinic wing now houses a hand-weaving workshop where visitors can try the old looms and make a cotton coaster of their own.

To reach Okada, take the Meitetsu Tokoname Line to Asakura Station, then a Chita Bus bound for Higashi-Okada and get off at the Okada stop; the streetscape is about three minutes on foot. By car, the district lies roughly five minutes from the Nagaura interchange or ten minutes from the Agui interchange. The compound and the surrounding workshops keep limited hours, so it is worth checking schedules before a visit.

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Q&A

QCan I go inside to see the wall up close?
AThe wall faces the street on the northern edge of the Masayasu-tei compound, so you can view it from the public road at any time. To enter the compound buildings, visit during the open hours of the Masayasu-tei management committee or the weaving workshop housed in the former clinic.
QIs this a National Treasure?
ANo. It is a Registered Tangible Cultural Property, a category that protects buildings valued for their contribution to the historic landscape. It carries a different and lighter status than a National Treasure or an Important Cultural Property.
QWhat makes a wall worth registering?
AIts reinforced concrete construction with repeating arches was an unusual choice for a private home in 1929, and it defines the northern face of the clinic compound within the old cotton-town streetscape. The register exists partly to protect exactly this kind of everyday modern structure.
QHow long should I set aside for Okada?
AA relaxed walk through the streetscape takes one to two hours. Adding a weaving session at the former clinic or a stop at one of the local cafes can fill a half day comfortably.
QWhat else nearby connects to the cotton history?
AThe Momengura Chita weaving hall, set in a former cotton storehouse, offers hands-on weaving, and several other listed buildings in the district trace the lives of the merchants and inventors who made Okada a cotton hub.

Basic Information

NameFormer Okada Clinic Wall (Kyu Okada Iin Hei)
Location24 Aza-Hirakido, Okada, Chita City, Aichi Prefecture
ClassificationRegistered Tangible Cultural Property (Building / Structure)
RegisteredNovember 17, 2015 (registration no. 23-0448)
Date of constructionAround 1929 (early Showa period)
CountOne structure
StructureReinforced concrete; total length about 33 m; height about 1.9 m; pillar forms at roughly 2.3 m intervals linked by arched walls on a tanizumi stone foundation
Registration criterionContributing to the historic landscape of the nation
AccessAbout 3 minutes on foot from the Okada bus stop (Chita Bus from Asakura Station on the Meitetsu Tokoname Line)
NoteViewable from the public street; part of the Masayasu-tei (former Okada Clinic) compound

References

Database of National Cultural Properties, Agency for Cultural Affairs: Former Okada Clinic Wall
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00010805
Masayasu-tei (Former Okada Clinic) official site
https://masayasu-tei.com/
Okada Streetscape Preservation Society: Masayasu-tei
https://okadamachinami.com/midokoro/machinami/masayasutei/
Chita City Tourism Guide: Masayasu-tei
https://chita-kanko.com/spot/detail/90/
Aichi Now: The Old Streets of Okada
https://aichinow.pref.aichi.jp/spots/detail/2710/

Last verified: 2026.06.16