Otani Family Residence East Storehouse

What Is the Ogaike Family East Storehouse?

The East Storehouse is a two-story dozō (earthen storehouse) built in the late Meiji period, between 1898 and 1912. It was constructed as a rice warehouse (komegura) for the Ogaike family, merchants whose compound faced directly onto the roadside so that goods could be loaded and unloaded with ease.

The structure occupies a footprint of about 45 square metres, rises two storeys, and is capped by a distinctive oki-yane style corrugated iron roof laid over the core structure. The building sits immediately to the east of its sister, the Middle Storehouse (Naka-gura), which was used for sake and soy sauce; between them rises a wooden Kōrai-mon gate. Together, the three elements—East Storehouse, Middle Storehouse, and gate—were registered as national tangible cultural properties on 1 August 2016, and as a trio they form one of the most intact roadside merchant landscapes surviving in the Hamadōri coastal belt.

A Stop on the Historic Salt Road

The East Storehouse faces a road that once carried a lifeline of inland Japan: salt. This route, known locally as the Shio-no-michi (Salt Road), connected the Rikuzen Hamakaidō highway running up the Pacific coast with the great inland Ōshū Kaidō. Along it, salt produced on the shore was carried westward to mountain communities, while rice, sake, soy sauce, and other inland goods flowed in the opposite direction.

The Ogaike family positioned their compound directly onto this commercial artery. By aligning the East Storehouse, the gate, and the Middle Storehouse along the street frontage, the family created a visible declaration of their role as a distribution hub. Standing before the storehouses today, it is easy to imagine horses and handcarts pausing at the gate while bales of rice were hoisted through the upper-floor hatch.

Why It Was Registered as a Cultural Property

The East Storehouse was listed on the national register for its contribution to the historic landscape of Japan. Three qualities stand out.

First is its authenticity as a working merchant warehouse. Very few roadside rice storehouses from the Meiji period survive along the old highways of the Tōhoku coast, and the East Storehouse preserves its original function, orientation, and architectural vocabulary.

Second is the craftsmanship of its plaster finishes. The lower walls are wrapped in namakokabe—"sea-cucumber wall"—a diagonal lattice of square tiles sealed with raised plaster ridges, designed for fire resistance and all but synonymous with prosperous nineteenth-century merchant quarters. At the wall's crown runs a decorative hachimaki band modelled with spiral patterns, and above the single gable-end window is a vivid kote-e plaster relief: a stylised water wheel, the family crest, flanked on the lintel by a flowing plant motif. Such ornamentation elevates a working warehouse into a quiet statement of civic pride.

Third is the ensemble effect. Because the East Storehouse, Middle Storehouse, and Kōrai-mon gate were all registered together, visitors experience them as a coherent streetscape rather than as isolated buildings—a rare survival in a region that has seen rapid change.

Architectural Highlights

Up close, the East Storehouse rewards unhurried looking. The building is kirizuma-zukuri tsumairi, meaning a gabled roof with the entrance placed on the gable end facing the street. Its corrugated iron roof is draped over the earthen core in the oki-yane ("placed-roof") technique, which allowed warehouses to breathe and made repairs easier without disturbing the precious contents inside.

The walls themselves are massive thicknesses of clay and straw plaster finished in white lime. During the Second World War the exterior was painted black as an air-raid camouflage measure, and the owners have preserved that dark finish to this day, giving the storehouse a quiet, almost meditative silhouette against the rural sky. Look for the water-wheel plaster crest glinting above the window: it is a signature of the family and one of the finest surviving examples of rural kote-e in the region.

Visiting the Ogaike Family Residence

The East Storehouse is a private residence and remains in family ownership, so the interiors are not open to casual visitors. However, because the storehouse was deliberately placed on the street line, the exterior—together with the neighbouring Middle Storehouse and gate—can be appreciated in full from the public road at any time.

Visitors should approach respectfully, keep to the roadside, and refrain from entering the grounds without permission. The Middle Storehouse next door has, since 1974, operated as the Tochikubo Simple Post Office, which gives the site a gentle living presence; postal visits during business hours are one of the most atmospheric ways to sense the building's continuing role in the community.

Things to See Nearby

Tochikubo lies in the northern part of Minamisoma City, in what was formerly the town of Kashima. A short drive opens up several complementary attractions.

Kashima Mikojinja Shrine, in central Kashima, is famed for its great zelkova tree, estimated at 900 to 1,200 years old and registered as a Fukushima Prefectural Natural Monument. The Mano Kofun burial-mound cluster, a nationally designated historic site, scatters across low hills on the west bank of the Mano River. Closer to the coast, the Karasuzaki Seaside Park and the Mano Fishing Harbour offer Pacific views, and Sedette Kashima—a roadside station attached to the Minamisoma Kashima service area—makes a convenient stop for local pears, seafood, and information on the wider Sōma region. For those timing a visit in late May, the spectacular Sōma Nomaoi festival, a UNESCO-recognised equestrian tradition nearly 1,000 years old, brings samurai-costumed riders through the surrounding districts.