A Merchant's Storehouse on a Yasuda Lane
Turn off the main street of Yasuda, a small river-mouth town on the Pacific side of Kochi, and the back lanes still carry the texture of a nineteenth and early twentieth-century merchant quarter. Along one of them, on the northern edge of the Kubo family's shop-and-residence, stands a compact two-storey storehouse built in the Taisho era (1912-1925). It is small by the standards of grand warehouses, with a footprint of only 18 square metres, roughly two and a half ken by two ken in the traditional module (about 4.5 by 3.6 metres). Yet its plain walls hold a good deal of local building knowledge.
This is a dozo, a thick-walled earthen storehouse of the kind Japanese merchants used to protect goods, records and valuables from fire and damp. The Kubo storehouse is capped by a gabled roof of pantiles set as an okiyane, a separate outer roof laid over the earthen structure so that the two can expand, settle and weather independently. Its upper walls are finished in Tosa shikkui, the hard, water-resistant lime plaster for which the region is known, while the lower wainscot is clad in iron sheeting.
Why It Was Registered
The storehouse was entered on the national register of tangible cultural properties on 2 October 2007, one of several structures on the Kubo property listed together (registration number 39-0223). The criterion applied was contribution to the historic landscape of the country, the category used for buildings that hold the character of a place rather than claiming singular architectural fame.
What earns the storehouse its place is the way it records regional practice. The most telling detail sits just above the iron wainscot: a course of mizukiri-gawara, projecting drip tiles that throw rainwater clear of the wall below. In a prefecture that takes the full force of Pacific typhoons and some of the heaviest rainfall in Japan, this small horizontal line is a practical answer to a real climate, and it appears again and again on old Tosa buildings. Reading that band of tile, you understand the storehouse less as decoration than as accumulated local sense.
What to Look For
Approach from the lane and look first at the roof. Because it is an okiyane, the pantiled cover sits slightly apart from the plastered box beneath, a construction logic you can read once you know to look for the shadow line between them. Then let your eye drop to the junction of plaster and iron, where the drip tiles run. The contrast of materials is deliberate: pale Tosa plaster above, dark metal below, divided by that single ceramic line.
The storehouse is not an isolated object. It shares the northern lane with the family's detached room and, a little further on, the old stone wall, so the three together set the tone of the passage. This is a working corner of a merchant household rather than a showpiece, and the pleasure of it lies in that modesty. The Kubo buildings are private and used, so appreciate the exterior from the lane and keep to the public way.
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Q&A
- Can I go inside the storehouse?
- No. The Kubo buildings are privately owned and remain in use, and the storehouse interior is not open to visitors. The exterior can be viewed from the public lane on the north side of the property.
- What is Tosa shikkui?
- It is a lime plaster developed in the Tosa region (modern Kochi), mixed to resist the area's heavy rain. Its durability made it a standard finish for storehouses and the upper walls of merchant buildings there.
- Why are the lower walls covered in iron sheeting?
- The iron wainscot protects the plaster base of the wall from splashing rain and knocks at ground level. It is a practical, later-period measure common on Tosa buildings exposed to hard weather.
- How do I reach Yasuda?
- Yasuda lies in eastern Kochi, reachable by the Asa Coast Line (Gomen-Nahari Line) railway and by road along the coast. The old town centre with its lanes is a short walk from Yasuda Station.
Basic Information
| Name | Kubo Family Residence Storehouse (Kura) |
|---|---|
| Location | 1849 Yasuda, Yasuda-cho, Aki-gun, Kochi Prefecture |
| Designation | Registered Tangible Cultural Property (building); registered 2 October 2007 |
| Registration No. | 39-0223 |
| Quantity | 1 building |
| Period | Taisho era (1912-1925) |
| Structure | Earthen storehouse (dozo), two storeys, tiled roof; building area 18 square metres |
| Access | Exterior viewing only from the public lane; interior not open |
References
- National Database of Designated Cultural Properties (Agency for Cultural Affairs): Kubo Family Residence Storehouse
- https://kunishitei.bunka.go.jp/heritage/detail/101/00006756
- Kochi Prefecture: Registered Tangible Cultural Properties (Buildings)
- https://www.pref.kochi.lg.jp/doc/2023062200186/
- Yasuda Town Office
- https://www.town.yasuda.kochi.jp/
Last verified: 2026.07.11