An 1855 House Beside National Route 24
The Main House of Hirai Clinic (平井医院主屋, Hirai Iin Shuoku, also transliterated Hirai-iin Shuoku) is a wooden dwelling in the Imai district of Gojō City, Nara Prefecture, completed in 1855 and entered on Japan's register of Tangible Cultural Properties in 2002. It stands near the centre of a walled compound of roughly 1,200 square metres, facing south onto National Route 24.
Dates for surviving Edo-period houses are usually estimates, pieced together from joinery, tool marks and whatever documents happen to have survived. This one does not require guesswork. Set into the roof frame at the ridge-raising ceremony is a jōtō heisoku, an inscribed wand of wood and paper offered when the ridge beam goes up, and its inscription records the year Ansei 2, which corresponds to 1855.
The house covers 230 square metres on a single floor. Its ridge runs east to west under a plain gabled roof, and the entrance sits on the long eaves side rather than under a gable end, an arrangement carpenters call hirairi. The proportions are unusual for a private house: low, narrow front to back, and much longer along the road than a passer-by expects.
Three elements interrupt that long line. A small gabled kemudashi rides the ridge, a smoke vent that drew away the fumes of the cooking hearth below. At the eastern gable, a subsidiary roof steps down to a lower level, the form Japanese architectural vocabulary calls otsumune. Pent roofs run the full length of the building front and back, throwing the wall below into deep shade for most of the day.
The national database describes the exterior as imposing and singles the house out as a conspicuous element of the local scene. From the pavement, hemmed in by later shopfronts and utility poles, the judgement holds up.
What Registration Means Here
Japan runs two parallel systems for historic buildings, and the difference matters for anyone reading the label on this one. Designation as an Important Cultural Property brings strict controls and equally strict obligations. Registration, a lighter category introduced in 1996, was designed for the enormous stock of buildings that shape the character of ordinary Japanese places without meeting the threshold for designation. Owners of registered buildings keep using them. Alterations require notification rather than advance permission, and the state offers tax relief and limited repair subsidies in return.
The Hirai main house qualified under the first of the three registration criteria, contribution to the historic landscape of the country. Its registration number is 29-0067, the prefix 29 identifying Nara Prefecture. Registration took effect on 21 August 2002 and was announced in the official gazette on 3 September that year, in the thirty-fourth round of listings.
Two further buildings in the same compound were registered on the same day. Behind the house stands a two-storey storehouse (29-0068), its roof stepped in two heights because it was built to hold rice at one end and cotton at the other. Facing the highway is a nagayamon, a gatehouse of the long-house type with a frontage of 9.0 metres, hip-and-gable roof and a deep eaves line carried on a projecting purlin. Its date is given as around 1855, the same building campaign.
Taken singly, none of the three would be remarkable. Taken together they preserve something rarer than a fine building: a complete mid-nineteenth-century compound, with its living quarters, its stores and the face it turned toward the highway all still in place on the original plot.
Looking, and the Limits of Looking
The compound is still a medical practice. Hirai Naika Clinic treats internal medicine, respiratory and allergy patients on the site, and the buildings are private property in daily use. There are no tours, no open days and no interior access of any kind. Visitors should look from the public pavement on Route 24 and go no further than that. The parking area is for patients, and pointing a camera at people arriving for appointments would be an intrusion on a working surgery.
Within those limits there is a good deal to see. Stand on the far side of the road and the compound reads as it was meant to: the gate low and wide across the southern boundary, the main roof rising behind it, the smoke vent breaking the ridge line. The house faces south, so the front elevation is lit from late morning through mid-afternoon. Photography from the public road is unrestricted.
Gojō Station on the JR Wakayama Line lies about 700 metres west, under ten minutes on foot along the highway. Drivers will find the road busy and the frontage narrow, with nowhere legitimate to stop.
One source of confusion deserves clearing up. The Imai district of Gojō is not Imai-chō in Kashihara City, the famous merchant quarter some twenty kilometres north. Gojō has its own preservation district, Gojō Shinmachi, selected as an Important Preservation District for Groups of Traditional Buildings in 2010 and lying roughly 1.5 kilometres southwest along the Yoshino River, about twenty minutes on foot. Its street of Edo-period merchant houses includes a residence widely cited as the oldest town house in Japan with a securely documented construction date. Most visitors will want to see the two on the same afternoon.
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Q&A
- Can you visit the Main House of Hirai Clinic, and is there an admission fee?
- No. The building is private property housing an active medical clinic, and there is no public admission, no interior access and no fee. The exterior can be viewed from the public pavement on National Route 24 at any time.
- When was the Main House of Hirai Clinic built, and how is the date known?
- It was built in 1855, the second year of the Ansei era. The date comes from the inscribed ridge-raising wand set into the roof frame during construction, which makes this a securely dated example rather than an estimated one.
- What does Registered Tangible Cultural Property status mean for the Main House of Hirai Clinic?
- It is a lighter protective category than Important Cultural Property designation, introduced in 1996. The owners continue to use the building, alterations require notification rather than permission, and tax relief and limited repair grants are available. Registration number 29-0067 took effect on 21 August 2002.
- How do you reach the Main House of Hirai Clinic by public transport?
- Gojō Station on the JR Wakayama Line is about 700 metres west, a walk of under ten minutes along National Route 24. Gojō Station is served by trains from the Ōji and Takada directions on the same line.
- Are other buildings at Hirai Clinic also registered cultural properties?
- Yes. The storehouse behind the house (29-0068) and the long-house gate on the southern boundary were registered on the same day in 2002. All three are visible in part from outside the compound, the gate most clearly of all.
- Can you photograph the Main House of Hirai Clinic?
- Photography from the public road is unrestricted. Entering the compound or the patient parking area is not permitted, and photographs of patients or staff should be avoided out of respect for a working clinic.
Basic Information
| Name | Hirai Iin Shuoku (平井医院主屋), Main House of Hirai Clinic |
|---|---|
| Location | Imaichō 4-1-16, Gojō City, Nara Prefecture (Gojō City and the clinic give the address as Imai 4-chōme 1-16) |
| Designation | Registered Tangible Cultural Property (Buildings); registration no. 29-0067; criterion: contribution to the historic landscape of the country |
| Year Designated | 2002 (registered 21 August, gazetted 3 September, 34th round) |
| Quantity | 1 building |
| Dimensions | Timber frame, single storey, tile roof; building area 230 m² |
| Owner | Private (not recorded in the national database) |
| Public Access | Not open to the public. Active medical clinic and private residence; exterior visible from National Route 24 |
References
- National Database of Designated Cultural Properties, Agency for Cultural Affairs: Hirai Iin Shuoku
- https://kunishitei.bunka.go.jp/heritage/detail/101/00002977
- Cultural Heritage Online: Hirai Iin Shuoku
- https://online.bunka.go.jp/heritages/detail/116057
- Cultural Heritage Online: Hirai Iin Dozō (storehouse)
- https://online.bunka.go.jp/heritages/detail/138748
- Cultural Heritage Online: Hirai Iin Omotemon (front gate)
- https://online.bunka.go.jp/heritages/detail/193979
- Gojō City: Registered Tangible Cultural Properties of Gojō
- https://www.city.gojo.lg.jp/soshiki/kankoshinko/5_1/5/2110.html
- Gojō City: Outline of the Gojō Shinmachi Preservation District
- https://www.city.gojo.lg.jp/soshiki/bunka/1_1/1/3116.html
- Gojō City Medical Association: Hirai Naika Clinic
- https://gojomed.gr.jp/hospital/hirai/
Last verified: 2026.08.24