A Room for the People Who Make the Natto

The Miyagino Natto Factory Break Room (宮城野納豆製造所休憩室, Miyagino Nattō Seizōsho Kyūkeishitsu) is a single-storey timber building from the early Showa period (1926 to 1945) at the Miyagino Natto Factory in Ichomachi, Miyagino-ku, Sendai, built as a rest room for the factory's staff, and was listed as a Registered Tangible Cultural Property on September 10, 2019.

It adjoins the east side of the production building's east wing. The roof is a Kirizuma-zukuri gable in Sangawara-buki pantiles, the walls are Shitami-itabari clapboard, and inside is a single room with a mortar Doma floor and plywood-lined walls and ceiling.

The building is timber-framed with a tiled roof and a building area of 63 square metres. There are two doors, at the south end of the west wall and the west end of the north wall, and glazed windows run along both the east and west sides.

Why It Was Registered

Registered as number 04-171 for its contribution to the historic landscape, it is noted by the Agency for Cultural Affairs for keeping its original form and for showing how a modern food factory was put together.

A factory is more than its machines. The place where workers rest is part of it too, and because such rooms can seem unimportant they tend to be the first to be rebuilt or cleared away. Surviving intact beside the production building, this one makes the working day of an early Showa food plant easier to picture.

Of the seven, the Miyagino Natto Factory Break Room is the only one whose roof the national database lists as tiled in its structure field. Among the metal-roofed factory sheds, the pantiles give it a more domestic air.

What to Look For

The windows are the point. Although the room backs onto the workroom, it is glazed on both long sides, pulling in daylight and cross breezes for people stepping away from the steam and heat.

The doors are placed with the same logic. One sits at the south end of the west wall and the other at the west end of the north wall, both on the side nearest the workroom, so staff could step in between tasks in a few paces.

The floor is beaten mortar, so boots stay on. The plywood linings are plain, but that plainness means little has been altered, and the room still reads much as it was first used.

Visiting

The building is part of a working factory. Its interior is not open, and the walled site cannot be entered.

No notice on photography was found. Directions and contact details for enquiries are on the Miyagino Natto Factory page.

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Q&A

QWhat is the Miyagino Natto Factory Break Room?
AA single-storey timber room where factory staff take their breaks, with a pantiled gable roof, a mortar floor and plywood-lined walls.
QWhen was the Miyagino Natto Factory Break Room built?
AIn the early Showa period, between 1926 and 1945.
QWhy is the Miyagino Natto Factory Break Room a Registered Tangible Cultural Property?
AIt keeps its original form and shows how a modern food factory was organised. It was registered on September 10, 2019, as number 04-171.
QCan I go inside the break room?
ANo. It is part of a working factory, and both the interior and the site are closed to the public.
QWhere is the break room on the site?
AIt adjoins the east side of the production building's east wing, with the Boiler Room continuing to its south.

Basic Information

NameMiyagino Natto Factory Break Room
Location663 and other lots, Ichomachi, Miyagino-ku, Sendai, Miyagi Prefecture (postal address: 4-29 Ichomachi)
DesignationRegistered Tangible Cultural Property (Building)
Year DesignatedRegistered 2019/9/10 (first year of Reiwa)
Quantity1 building
DimensionsTimber-framed, single-storey, tiled roof, building area 63 square metres
OwnerMiyagino Natto Manufacturing Co., Ltd.
Public AccessNot open to the public (working factory; the walled site cannot be entered)

References

Database of National Cultural Properties (Agency for Cultural Affairs): Miyagino Natto Factory Break Room
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00012863
Cultural Heritage Online: Miyagino Natto Factory Break Room (Japanese)
https://online.bunka.go.jp/heritages/detail/446893
Sendai Board of Education: Miyagino Natto Factory Break Room (Japanese)
https://www.sendai-c.ed.jp/~bunkazai/shiteidb/c03055.html
Sendai City: Designated and Registered Cultural Properties in Sendai (Japanese)
https://www.city.sendai.jp/bunkazai-kanri/kurashi/manabu/kyoiku/inkai/bunkazai/bunkazai/toroku.html

Last verified: 2026.09.25