What Is the Sendaiya Toilet?

The Sendaiya Toilet (仙臺屋便所, Sendaiya Benjo) is a small single-story timber outhouse from the late Taisho period on Chuo-dori in Tono, Iwate Prefecture, and was registered as a Registered Tangible Cultural Property of Japan on July 8, 2008.

It stands between the former unhulled rice storehouse and the warehouse, near the back of the Sendaiya lot. With a building area of just 4.1 m², it is both the newest and the smallest of the six registered buildings, and its inclusion shows how far the registration reached into the working back yard of a merchant household.

The Only Tiled Roof at Sendaiya

The Sendaiya Toilet has a gabled roof running east to west, covered in Sangawara-buki interlocking pantiles. The main house, the three storehouses and the warehouse are all roofed in metal sheet, so this outhouse is the one building in the compound under ceramic tile.

The eaves are a single row of Taruki rafters set well apart, a plain and economical form. In the gable ends, short vertical struts standing on the tie beam carry the ridge, and the framing is left in view. It is a modest building, but its carpentry follows the basics carefully.

A Sheltered Front and Three Stalls

The Sendaiya Toilet is 2.9 m long. Across its depth, a line of posts 1.4 m in from the north side marks an internal partition, and the part in front of it, to the south, is built as Degeta-zukuri, with the beams projecting past the posts to carry deep eaves and a small ceiling. That gives users a sheltered space in front of the doors.

The interior is divided into three compartments, closed by plank doors on the south side. The posts are square, and the walls are Shinkabe, white Shikkui plaster laid between the posts so that the timber frame shows. The clean lines of posts against white plaster are the opposite of the storehouses, where the frame disappears inside thick clay walls.

Why the Sendaiya Toilet Was Registered

The Sendaiya Toilet was registered for its contribution to the historic landscape. Added in the late Taisho period between buildings that had stood since the Meiji era, it records a practical part of daily life at the back of the compound.

Outbuildings like this are easily lost to rebuilding or demolition. At Sendaiya, this small structure was registered at the same time as the main house and the storehouses, as one of six.

Seeing the Sendaiya Toilet

The Sendaiya Toilet stands deep inside a private compound, between the rice storehouse and the warehouse, and no public opening was announced as of September 2026. It cannot be seen from the street. There is no official guidance on photography; please respect the residents' privacy. Directions to the compound are on the Sendaiya page.

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Q&A

QWhen was the Sendaiya Toilet built?
AIn the late Taisho period. The Agency for Cultural Affairs does not give a specific year.
QHow big is the Sendaiya Toilet?
AIt is a single-story timber building 2.9 m long with a building area of 4.1 m², the smallest of the six registered buildings at Sendaiya.
QWhat kind of roof does the Sendaiya Toilet have?
AA gabled roof of sangawara-buki pantiles. It is the only tiled roof among the six Sendaiya buildings; all the others are metal sheet.
QWhen was the Sendaiya Toilet registered as a cultural property?
AOn July 8, 2008, as a Registered Tangible Cultural Property.
QCan visitors see the Sendaiya Toilet?
AIt is deep inside a private compound, and no public opening was announced as of September 2026.

Basic Information

NameSendaiya Toilet
Location501-3 Chuo-dori, Tono City, Iwate Prefecture
DesignationRegistered Tangible Cultural Property (Structure)
Year DesignatedRegistered in 2008
Quantity1 building
DimensionsBuilding area 4.1 m², length 2.9 m (1-story timber)
OwnerPrivate
Public AccessNot open to the public (inside a private compound)

References

Agency for Cultural Affairs, Database of National Cultural Properties: 仙臺屋便所
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00007170
Cultural Heritage Online: 仙臺屋便所
https://online.bunka.go.jp/heritages/detail/172472
Tono City: Protection of Cultural Properties (list of designated and registered properties)
https://www.city.tono.iwate.jp/index.cfm/48,14077,303,html

Last verified: 2026.09.30