The Storehouse Behind the Shop Front

Okada Family Residence Storehouse (岡田家住宅土蔵, Okada-ke Jūtaku Dozō, also written Okada-ke Jutaku Dozo) is an early Shōwa-period plastered storehouse at Saijō-honmachi in Higashihiroshima City, Hiroshima Prefecture, built between 1926 and 1945 and entered on the national register as a Registered Tangible Cultural Property (Structure) on 4 February 2021.

It stands south of the family's main house, in the middle of the plot, with its entrance facing west. Those three pieces of information explain a great deal about how a merchant property in a former post town was organised. The main house takes the street frontage on the north. Behind it the land runs back in a long strip, and the storehouse occupies the centre of that strip, turned sideways so its door opens onto the working yard rather than onto the road.

Its footprint is about 37 square metres over two storeys, roughly one sixth the floor area of the main house. A storehouse was never meant to be large. It was meant to be secure.

What a Dozō Is Built to Do

A dozō is a storehouse whose timber frame is buried under thick layers of earth and finished in lime plaster. Fire was the standing threat in a town of wooden buildings, and the dozō was the household's answer: a fireproof box holding documents, ledgers, valuables, seasonal furnishings and stock.

Here the plaster is carried right out to the edge of the eaves, sealing the junction where roof meets wall. That detail, nurikome, closes the gap through which flame and embers would otherwise reach the timbers. The roof is laid in pantiles.

The lower band of the wall is treated differently. Instead of plaster or stone it is finished in exposed-aggregate mortar, a technique in which the surface skin is washed away while the mortar is still green so that the stone chips within it stand proud. Mortar was a modern material in the 1920s and 1930s, and its appearance on the base course of an otherwise traditional storehouse dates the building as clearly as any document. The base takes splash from rain and the knocks of goods being moved; a hard aggregate finish survives that treatment better than lime.

The Kuramae, and Why It Matters

The one element here that is not purely practical is the kuramae, the sheltered bay set in front of the storehouse door. It is a single bay wide, covered by its own small hipped-and-gabled roof, and ceiled with a gōtenjō, a coffered ceiling of crossed timber grids with panels set between them.

Coffered ceilings belong to temple halls, shrine buildings and the formal reception rooms of the wealthy. Finding one over the threshold of a working storehouse is worth stopping for. The porch had a job, keeping rain off the heavy plastered doors while they stood open and giving space to stage goods going in or out, and it could have done that job with plain boards overhead. Someone chose otherwise.

Inside, the floors are boarded throughout. The ground-floor walls are faced in vertical planking, which protects the plaster core from being scuffed by crates and barrels, while the upper floor keeps its plaster finish exposed. The division of surfaces follows the division of use: rough work below, storage above.

Registration and the Wider District

The storehouse was registered on the criterion that it contributes to the historic landscape of the country, under registration number 34-0299, in the 97th round of registrations. The Agency for Cultural Affairs record notes specifically that it forms the residential landscape at the centre of the site, which is an unusual thing to say about a building nobody can see from the street. It is a judgement about the property as a whole rather than about a facade.

Registration is the lighter of Japan's two systems for historic buildings. Introduced in 1996, it covers structures roughly fifty years old or more, imposes modest restrictions, and is intended for buildings that remain in use rather than being preserved as monuments. The Okada storehouse and the main house were recommended together by the Council for Cultural Affairs in July 2020 and gazetted the following February.

The setting has been gaining recognition steadily. In December 2017 the Japanese national committee of ICOMOS selected the brewing facilities of Saijō for its list of twenty heritage sites of twentieth-century Japan. In February 2024 four brewery complexes in the district were designated collectively as a National Historic Site under the name Saijō Sake Breweries, the first time sake breweries anywhere in Japan received that status. The evaluation traced how small breweries tucked behind town houses on the old highway grew into large works spreading across farmland to the rear, and the Okada plot, with its street-front house and its storehouse standing behind, shows the earlier half of that pattern in miniature.

Seeing It, and What Else Is Nearby

The storehouse is not open to the public and stands within a private property in commercial use, so there is no admission, no opening hours and no interior access. Being set back from the road, it is also considerably harder to see than the main house; visitors should expect a glimpse of roof and upper wall rather than a clear view, and should not enter the site to look for a better angle.

What is worth doing is walking the district with the plot arrangement in mind. From the south exit of JR Saijō Station it is about five minutes on foot to this stretch of Saijō Sakagura-dōri, the road that was the Saikoku Kaidō and the main street of Yokkaichi-juku before that. Look down the side lanes and the same layout repeats: a building on the street, a yard, a plastered storehouse or brewery behind, and often a red brick chimney above the roofline. Twelve of those chimneys stand in the district.

Kamotsuru Brewery's Ichigō-kura, part of the National Historic Site, is open as a brewery shop with tasting. Seven brewing companies work within about a kilometre of one another, and Saijō is counted with Nada and Fushimi among the three great sake-producing centres of Japan. Photography from the public road is not restricted, and the city asks that visitors treat cultural properties and the people living among them with care.

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Q&A

QCan you visit Okada Family Residence Storehouse?
ANo. The storehouse stands inside a privately owned property used for business and is not open to the public. It sits behind the main house at the centre of the plot, so it is only partly visible from the public road.
QWhere is Okada Family Residence Storehouse?
AAt 910 Saijō-honmachi, Higashihiroshima City, Hiroshima Prefecture, on the same plot as Okada Family Residence Main House. The site is about five minutes on foot from the south exit of JR Saijō Station, along Saijō Sakagura-dōri.
QWhat is the cultural property status of Okada Family Residence Storehouse?
AIt is a Registered Tangible Cultural Property (Structure), registration number 34-0299, registered on 4 February 2021 for its contribution to the historic landscape. The main house was registered the same day under number 34-0298.
QWhat makes Okada Family Residence Storehouse architecturally unusual?
AThe porch in front of its door, one bay wide, carries a hipped-and-gabled roof and a coffered ceiling of a kind normally reserved for temples, shrines and formal reception rooms. The plaster walls run out to the eaves edge for fire protection, and the base course is finished in exposed-aggregate mortar, a material of the 1920s and 1930s.
QWas Okada Family Residence Storehouse used for brewing sake?
ANo. The Okada family were sake wholesalers rather than brewers, and this is a household storehouse rather than a brewing building. The breweries designated as the Saijō Sake Breweries National Historic Site in 2024 are separate properties along the same street.

Basic Information

NameOkada Family Residence Storehouse (岡田家住宅土蔵)
Location910 Saijō-honmachi, Higashihiroshima City, Hiroshima Prefecture
DesignationRegistered Tangible Cultural Property (Structure), registration no. 34-0299
Year DesignatedRegistered 4 February 2021 (Reiwa 3)
Quantity1 building
DimensionsDozō construction, two storeys, tiled roof (pantiles); building area approx. 37 m²
OwnerOkada Group Honsha Co., Ltd.
Public AccessNot open to the public; stands within private grounds behind the main house

References

National Database of Designated Cultural Properties, Agency for Cultural Affairs — Okada Family Residence Storehouse
https://kunishitei.bunka.go.jp/heritage/detail/101/00013659
Higashihiroshima City — Designated and Registered Cultural Properties
https://www.city.higashihiroshima.lg.jp/soshiki/kyoikuiinkaishogaigakushu/3/11/bunkazai/index.html
Higashihiroshima City — National Historic Site: Saijō Sake Breweries
https://www.city.higashihiroshima.lg.jp/soshiki/kyoikuiinkaishogaigakushu/3/11/bunkazai/town/saijo/sakaguragun/index.html
Higashihiroshima Tourism Association — Townscape of Sakagura-dōri
https://www.hh-kanko.ne.jp/ginjyo/machinami.html
Dive! Hiroshima — Saijō Sakagura-dōri
https://dive-hiroshima.com/explore/1199/

Last verified: 2026.08.08