Tsukamoto House Storehouse (Former Kakuhyo House Rice Storehouse)

A Storehouse That Follows the Street

The Tsukamoto House Storehouse (塚本家住宅蔵, formerly the Kakuhyō House rice storehouse, 旧覚兵家住宅米蔵) is a late Edo-period earthen-walled warehouse in Honmachi, Izumisano City, Osaka Prefecture, built between roughly 1830 and 1867 and added to Japan's register of Tangible Cultural Properties on 18 April 2008.

It stands on a corner. That fact governs everything about its shape. Most Japanese dozō storehouses are simple rectangles, but this one is a trapezoid in plan: the south wall runs 13 metres, the north wall 12, and the depth across is 5.8 metres. The walls were built to meet the two streets rather than to meet each other at right angles, and the roof was framed to suit. Total floor area is 73 square metres.

The building has two storeys, though only over part of its length. Inside is a single undivided room, with a second floor laid across the eastern half and open volume to the west. The roof is kirizuma-zukuri hongawarabuki, a straightforward gable in the formal tiling of alternating pan and cover tiles. The whole sits on a plinth of kirikomi-hagi masonry, stone cut and dressed so the blocks meet along tight joints with no packing between them.

The exterior surface is worth a second glance. The thick plastered walls that give a dozō its fireproofing are themselves vulnerable to driving rain, and here they are sheathed in horizontal shitami-ita boarding, planking fitted as a sacrificial layer to take the weather. That treatment is common along this stretch of coast and gives the storehouses of Izumisano a darker, more timbered look than the white-plastered warehouses inland.

Rice, Ships and the Reason for Registration

To understand why a private warehouse carries national status, you have to know what stood here before. Izumisano was one of the great shipping towns of the Inland Sea trade. Merchant families based in Sano village, above all the Meshino and the Karakane, ran fleets that worked the routes from Osaka to Edo and carried domain rice north and south; by the late seventeenth century the Meshino were said to own close to a hundred vessels. Both houses were rich enough to appear in Ihara Saikaku's Nippon Eitaigura of 1688. When the kitamaebune trade opened up in the mid-eighteenth century, the Sano shipowners moved into it early and made fortunes.

Their storehouses lined the shore in a continuous rank. Local usage called them the iroha warehouses, after the forty-eight syllables of the traditional Japanese ordering, and by tradition there were forty-eight of them. Izumisano's own account puts the number at more than forty at its height. Roughly ten survive. The lane they stood along is still called Iroha-gura-dōri.

The Agency for Cultural Affairs registered the Tsukamoto storehouse as entry number 27-0461 in the fifty-ninth round of registrations, under the criterion for structures contributing to the historic character of the national landscape; public notice followed on 7 May 2008. The registry describes it as a warehouse carrying the memory of the era when the shipping agents' storehouses stood in ranks here. It is filed as a residential building, one structure, with a recorded alteration in 1958.

The registration system itself dates from 1996 and was created for exactly this situation: buildings that matter to a place but would never clear the bar for Important Cultural Property status, and that need to stay in private hands and in use to survive at all.

Seeing It, and What Else Is Nearby

Be clear about one thing before setting out: this is a private building. The Agency for Cultural Affairs records no owner name in the public entry, there is no admission desk, and the interior is not open. What you can do is walk past it and look at the outside from the street, which is how the property is meant to be encountered and is enough to read what makes it unusual.

Stand at the corner and follow the eaves line along the south wall, then step round to the north side. The taper is subtle at ground level but the roof gives it away, since the ridge cannot sit parallel to both walls at once. Look also at the junction between the stone plinth and the boarding, where the two techniques meet without any decorative transition.

The storehouse sits inside the old merchant quarter known as Sano Chōba, a walkable grid of narrow streets. Five minutes away at 5-29 Honmachi is the Izumisano Furusato Machiya-kan, the former Niigawa House, a soy-sauce merchant's townhouse of the mid-Edo period designated by the city and open to the public. Viewing hours run from 9:00 to 16:00, closing only over the New Year period; admission is 200 yen for adults, 100 yen for high school and university students, and free for junior high school students and younger, visitors aged 65 and over, and people with disabilities. It is the practical way to see the interior of a building of this era and region, since the storehouse itself cannot be entered.

The Meshino family's own residence is gone. Local accounts have the village buying the site in 1845; it now holds a primary school, and a pine, a well curb and a stone marker survive on the grounds. In June 2020 the site was added to the constituent properties of the Japan Heritage story covering ports and shipowners' settlements of the kitamaebune trade.

All of this lies about ten minutes on foot from Izumisano station on the Nankai Main Line, which is the junction where the Airport Line branches off toward Kansai International Airport. Anyone with a few hours between flights can reach the old town easily.