What Is the Okamoto Family Residence Middle Storehouse?

The Okamoto Family Residence Middle Storehouse (岡本家住宅中蔵, Okamoto-ke Jūtaku Nakagura) is a mid-Edo-period storehouse in Kitamachi, Kaizuka City, Osaka Prefecture, registered as a Registered Tangible Cultural Property on March 18, 2003.

Three storehouses line the north side of the Okamoto soy brewers' property, and this one stands in the middle, with the New Storehouse on the street to its west and the North Storehouse to its east.

It is a two-storey Dozo-zukuri building, 2 ken by 3 ken in plan, with a building area of 62 m² and a slate roof today. In footprint it matches the New Storehouse next door, but it is thought to be more than a century older.

Dating the Okamoto Middle Storehouse

Local tradition holds that the Okamoto Family Residence Middle Storehouse was built in the Kyoho era (1716 to 1736). The Agency for Cultural Affairs does not mention a ridge tag for this building, so the tradition alone cannot settle its age. Instead, the Agency tests it against two pieces of evidence.

The first is the timber. The Middle Storehouse's materials are clearly older than those of the New Storehouse, which a ridge tag dates to 1857. Having a securely dated building right next door gives a useful point of comparison.

The second is the layout. A Buddhist altar room added to the house in the Tenpo era (1830 to 1844) was built so as to avoid the Middle Storehouse, which implies the storehouse was already standing when that room went up.

On that basis, the Agency judges the Kyoho tradition to be "largely reasonable," and the building is registered as mid-Edo. It is an argued estimate rather than a proven date, and it is worth reading it that way.

Registration and a Changed Roof

The Okamoto Middle Storehouse was registered for its contribution to the historic landscape of the country. The Agency notes that none of the three storehouses was used for brewing; they were family stores for tools and household goods.

The roof is not original. According to the Agency's note on the North Storehouse, after an earthquake both the Middle and North Storehouses reluctantly had their traditional round-and-flat clay tiles replaced with artificial slate. Next to the New Storehouse, which kept its tiles, the difference in roof texture is a record of that repair.

Even with a new roof, the body of a storehouse that may date to the early 18th century survives in its original relationship to the altar room. For anyone trying to work out the order in which the Okamoto Family Residence took shape, the Middle Storehouse is one of the starting points.

Visiting the Okamoto Family Residence Middle Storehouse

The Okamoto Family Residence Middle Storehouse is privately owned and not open inside. Its relationship to the altar room lies within the house and cannot be checked from outside.

The storehouse stands just east of the New Storehouse on the street, so how much you see depends on where you stand. Look only from the public street and do not enter the property. There is no official guidance on photography; keep to exterior shots taken from the street. Directions are on the Okamoto Family Residence page.

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Q&A

QWhat is the Okamoto Family Residence Middle Storehouse?
AIt is the central one of three storehouses on the north side of the Okamoto property: a two-storey earthen-walled building, 2 ken by 3 ken, with a building area of 62 m² and a slate roof.
QWhen was the Okamoto Family Residence Middle Storehouse built and registered?
AIt is dated to the mid-Edo period, and tradition places it in the Kyoho era (1716 to 1736). It was registered as a Registered Tangible Cultural Property (Structure) on March 18, 2003.
QIs the Kyoho-era date for the Okamoto Middle Storehouse reliable?
AThe Agency for Cultural Affairs calls it largely reasonable, because the timbers are clearly older than those of the 1857 New Storehouse and an altar room of the Tenpo era (1830 to 1844) was built to avoid the storehouse.
QWhy does the Okamoto Family Residence Middle Storehouse have a slate roof?
AAccording to the Agency, its traditional clay tiles were replaced with artificial slate after an earthquake. The North Storehouse was changed at the same time.
QCan I visit the Okamoto Family Residence Middle Storehouse?
AIt is privately owned and the interior is closed. You can view whatever is visible from the public street.

Basic Information

NameOkamoto Family Residence Middle Storehouse
Location18-11 Kitamachi, Kaizuka City, Osaka Prefecture
DesignationRegistered Tangible Cultural Property (Structure)
Year DesignatedRegistered March 18, 2003
Quantity1 building
DimensionsBuilding area 62 m², 2 ken by 3 ken
OwnerPrivate owner
Public AccessNot open to the public (exterior visible from the street)

References

Agency for Cultural Affairs, Database of National Cultural Properties: Okamoto Family Residence Middle Storehouse
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00003288
Cultural Heritage Online: Okamoto Family Residence Middle Storehouse (in Japanese)
https://online.bunka.go.jp/heritages/detail/139058
Kaizuka City: Okamoto Family Residence (in Japanese)
https://www.city.kaizuka.lg.jp/bunkazai/bunkazaidata/bunkazai/kuni_sitei/tourokubunkazai/okamotoke.html
Agency for Cultural Affairs, Database of National Cultural Properties: Okamoto Family Residence New Storehouse
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00003287
Agency for Cultural Affairs, Database of National Cultural Properties: Okamoto Family Residence North Storehouse
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00003289
Osaka Bunkazai Navi: Okamoto Family Residence Main House (in Japanese)
https://osaka-bunkazainavi.org/bunkazai/%E5%B2%A1%E6%9C%AC%E5%AE%B6%E4%BD%8F%E5%AE%85%E4%B8%BB%E5%B1%8B

Last verified: 2026.09.17