The Family Storehouse Behind the House

Naganuma General Partnership Company Inner Storehouse (長沼合名会社内蔵, uchigura) is a two-storey earthen storehouse from the late Edo period (1830 to 1867) in Tokamachi, Nagai City, Yamagata Prefecture, registered as a Registered Tangible Cultural Property on 18 April 2008. It is built in the Dozo-zukuri earthen-wall technique with a metal-clad roof and covers 40 square metres.

It is joined to the north side of the store and main house's earth-floored Doma by a small covered area in front of its door. The family kept household goods here, and the Agency for Cultural Affairs notes that the arrangement preserves a traditional house layout in which home and storehouse run together. It is the smallest of the six registered Naganuma buildings.

A Storehouse from the Merchant Years

It was registered for its contribution to the historic landscape. The Naganuma General Partnership Company Inner Storehouse was not built for brewing. It belongs to the decades when the family dealt in cloth and silkworms, and among the big brewery sheds it is the building that still speaks of a merchant household.

The Agency for Cultural Affairs dates it to the late Edo period; the Nagai tourism bureau gives the late Edo to early Meiji period. This article follows the agency.

A Floating Roof and Stepped Plaster Doors

The storehouse measures 9.2 metres by 3.7 metres, narrow and two storeys tall, under a gable roof built as an oki-yane: a separate roof frame set on top of the sealed earthen body. Air moves through the gap, keeping heat and damp down, and in a fire the roof could burn away while the plastered body protected what was inside.

The south gable has double doors in kakego-nuri, a plasterer's finish in which the edges of the doors and frame are built up in steps that lock together when closed, sealing the gap against flame and smoke.

On the east side each floor has a window, and a single tall kakego-nuri door runs through both storeys. Picture heavy chests being hauled in and out and the purpose of that tall opening becomes clear.

Seeing the Inner Storehouse

The Naganuma General Partnership Company Inner Storehouse stands behind the store and main house and is hard to see from the street. No public access to the interior is announced. If you are ever invited onto the grounds, follow the brewery's lead, since this storehouse opens directly off the family home.

There is no published photography policy. Directions are on the Naganuma General Partnership Company group page. Information checked on 26 September 2026.

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Q&A

QCan I visit the Naganuma General Partnership Company Inner Storehouse?
AIt stands behind the store and main house and is hard to see from the street. No public access to the interior is announced.
QWhen was the Naganuma General Partnership Company Inner Storehouse built?
AThe Agency for Cultural Affairs dates it to the late Edo period (1830 to 1867). It was registered as a Registered Tangible Cultural Property on 18 April 2008.
QWhat was the Naganuma General Partnership Company Inner Storehouse used for?
AStoring household goods. It is joined to the north side of the store and main house's doma.
QHow big is the Naganuma General Partnership Company Inner Storehouse?
AIt measures 9.2 metres by 3.7 metres, two storeys, with a footprint of 40 square metres, the smallest of the six registered Naganuma buildings.
QWhat is special about the doors of the Naganuma General Partnership Company Inner Storehouse?
AThey are finished in kakego-nuri, stepped plaster edges that interlock when closed. One pair is in the south gable, and a tall door on the east side spans both floors.

Basic Information

NameNaganuma General Partnership Company Inner Storehouse
Location1-652-1 Tokamachi, Nagai City, Yamagata Prefecture, and other lots
DesignationRegistered Tangible Cultural Property (Building)
Year DesignatedRegistered 2008/4/18 (Heisei 20)
Quantity1 building
Dimensions9.2 metres by 3.7 metres, building area 40 square metres
OwnerNot listed in the Agency for Cultural Affairs records
Public AccessHard to see from the street. No public interior access is announced

References

Agency for Cultural Affairs, Database of National Cultural Properties: Naganuma General Partnership Company Inner Storehouse
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00006982
Yamagata Tourism: Naganuma Gomei Kaisha, Nagai Tourism Bureau entry (Japanese)
https://yamagatakanko.com/attractions/detail_11263.html
Naganuma Gomei Kaisha: About the Brewery (Japanese)
https://soumura.com/about.html

Last verified: 2026.09.26