A Farmhouse on the Upper Iya River
The Kurio Family Residence Main House (栗尾家住宅主屋, Kurio-ke Jūtaku Shuoku) is a thatched single-storey farmhouse in the Tsurui hamlet of Higashi-Iya, Miyoshi City, Tokushima Prefecture, built in the closing decades of the Edo period and registered as a Tangible Cultural Property in 2019.
The Agency for Cultural Affairs dates construction to between 1830 and 1868, with an extension around 1953 and repairs around 1988. The house is timber-framed, roofed in thatch that presently carries a temporary metal covering, and occupies 139 square metres of building area.
Tsurui sits on the upper reaches of the Iya River, in the part of the Shikoku interior that Japanese writers have long grouped among the country's remotest valleys. Slopes here run steep enough that fields, houses and stone retaining walls stack up the mountainside rather than spreading across it. Farmhouses were built to sit on narrow terraces cut into that gradient, and the Kurio house is one of them.
It is a private home. That single fact shapes everything about how a visitor should approach it, and the article returns to the point below.
Registered as a Model of Its Type
Japan registers tangible cultural properties under three criteria: contribution to the historic landscape of the country, value as a model of design, and difficulty of recreation. Most rural buildings enter under the first. The Kurio house entered under the second, on 29 March 2019, with register number 36-193 in the ninety-second round.
The distinction matters. Registering a building as a model of design is a statement that its form is exemplary of a type, worth holding up as the reference against which other examples are read. In this case the type is the traditional farmhouse of the Iya district, and the Agency's assessment is that the Kurio house shows that form well.
The same day brought the registration of the Nakayama Family Residence Main House in Kubo, elsewhere in Higashi-Iya. Six months later, in September 2019, three more buildings in the district followed, among them Chiiori and the Tsurui Yakushidō, both in this same hamlet. Within about half a year Tsurui went from having no registered buildings to holding several.
One discrepancy in the record deserves flagging. The Agency's advisory report of 16 November 2018, issued when the registration was recommended, describes the roof as irimoya-zukuri, a hip-and-gable form. The final entry in the national database, and the Cultural Heritage Online record derived from it, both describe it as yosemune-zukuri, a plain hipped roof. The database entry is the authoritative text and this article follows it.
How the Plan Works
The house presents its long side to the south. Reading the interior from east to west, the sequence runs chanoma, nakanoma, zashiki: a hearth room with an attached doma, or earth-floored work space, then a middle room, then the formal reception room. Behind the nakanoma lies the nema, the sleeping chamber. This graded progression from working space to formal space is standard in Japanese farmhouses; what varies from region to region is how the rooms are proportioned and where the edges fall.
A veranda wraps the front and the west flank. Beyond it, running the length of the south front, is a nure-en, an uncovered veranda outside the line of the rain shutters. At the centre of that front veranda sits the toilet.
That last arrangement is the detail worth pausing over. Western domestic planning buries the toilet at the back of the house; here it is placed at the middle of the principal elevation, reached across open boards, facing the valley. It reflects a different logic about which functions belong outside the weatherproofed envelope, and it recurs in Iya houses often enough that the Agency treats it as characteristic.
The thatch and the hipped roof shed the heavy mountain rain and snow. The metal sheeting laid temporarily over the thatch is a common holding measure across the region, since rethatching demands both reed supply and the labour of people who know how to do it, and both have grown scarce.
Visiting the Area
The Kurio house is privately owned and is not open to the public. There is no admission, no opening hours and no visitor facility. Registration under Japanese law places no obligation on an owner to admit anyone. Please do not enter the grounds, photograph through windows, or treat a family's home as a viewpoint.
The good news is that Iya offers several places built for visitors where the same architecture can be seen properly. Chiiori, about a hundred metres up the road at 209 Tsurui, is a thatched house of roughly three hundred years that the American writer Alex Kerr bought in 1973 and restored; it now operates as lodging and is itself a registered property. The Ochiai settlement, selected in 2005 as an Important Preservation District for Groups of Traditional Buildings, climbs some 390 metres of slope and can be viewed whole from the observation point in Nakaue across the valley, with several thatched houses there available as accommodation. The Higashi-Iya Museum of History and Folklore covers the district's building traditions and daily life.
Getting here takes planning. By car from the Ikawa-Ikeda interchange the route runs along National Route 32 towards Kōchi, then prefectural roads 45 and 32, then National Route 439 towards Mount Tsurugi, about an hour and twenty minutes in total. By bus, take the JR Dosan Line to Ōboke Station and the Shikoku Kōtsū service bound for Kubo. Services are infrequent, so check timetables before setting out, and in winter the roads here need snow tyres or chains and preferably four-wheel drive.
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Q&A
- Can visitors tour the Kurio Family Residence Main House in Higashi-Iya?
- No. It is a privately owned house with no public access, no opening hours and no visitor facilities. Registration as a cultural property in Japan does not require an owner to admit visitors. If you want to see an Iya farmhouse from the inside, Chiiori in the same hamlet takes overnight guests, and the Ochiai settlement offers thatched houses as accommodation.
- When was the Kurio Family Residence Main House built and registered?
- The Agency for Cultural Affairs dates construction to the late Edo period, between 1830 and 1868, with an extension around 1953 and repairs around 1988. It was registered as a Tangible Cultural Property on 29 March 2019 under register number 36-193.
- What makes the Kurio Family Residence Main House significant?
- It was registered under the criterion for buildings that stand as a model of design, rather than the more common criterion for contribution to the historic landscape. The Agency judges that its plan shows the traditional farmhouse form of the Iya district clearly: a hearth room with earth-floored work space, middle room and formal reception room in sequence, a sleeping room behind, verandas on the front and west flank, and a toilet set at the centre of the front.
- How do I get to Tsurui in Higashi-Iya, Miyoshi City?
- By car from the Ikawa-Ikeda interchange, follow National Route 32 towards Kōchi, then prefectural roads 45 and 32, then National Route 439 towards Mount Tsurugi, roughly an hour and twenty minutes. By public transport, take the JR Dosan Line to Ōboke Station and the Shikoku Kōtsū bus for Kubo. Buses are few, and winter driving here calls for snow tyres or chains.
- Are there other registered buildings near the Kurio Family Residence?
- Yes. Chiiori and the Tsurui Yakushidō, both in the same hamlet, were registered on 10 September 2019, and the Nakayama Family Residence Main House in Kubo was registered on the same day as the Kurio house. The Ochiai settlement, a short drive away, has been an Important Preservation District for Groups of Traditional Buildings since 2005.
Basic Information
| Name | Kurio Family Residence Main House (栗尾家住宅主屋) |
|---|---|
| Location | 105 Tsurui, Higashi-Iya, Miyoshi City, Tokushima Prefecture |
| Designation | Registered Tangible Cultural Property (Structure); register no. 36-193 |
| Year Designated | Registered and gazetted 29 March 2019 |
| Quantity | 1 building |
| Dimensions | Single-storey timber frame, thatch under temporary metal sheeting; building area 139 m²; hipped roof facing south |
| Owner | Private; no owner name recorded in the national database |
| Public Access | Not open to the public. A private residence with no visitor facilities; please view only from public roads without entering the grounds |
References
- National Cultural Properties Database, Agency for Cultural Affairs: Kurio Family Residence Main House
- https://kunishitei.bunka.go.jp/heritage/detail/101/00012824
- Cultural Heritage Online: Kurio Family Residence Main House
- https://online.bunka.go.jp/heritages/detail/379817
- Agency for Cultural Affairs: Advisory Report on Registration of Tangible Cultural Properties, 16 November 2018
- https://www.bunka.go.jp/koho_hodo_oshirase/hodohappyo/__icsFiles/afieldfile/2018/12/14/a1411175_01_1.pdf
- Ōboke Iya Navi, Miyoshi City official tourism site: Ochiai Settlement and Observation Point
- https://miyoshi-tourism.jp/spot/ochiaishuraku/
- Cultural Heritage Online: Ochiai, Higashi-Iyayama, Miyoshi City, Important Preservation District
- https://online.bunka.go.jp/heritages/detail/203309
Last verified: 2026.08.23