Former Minatoya Storehouse

What the Former Minatoya Storehouse Is

The Former Minatoya Storehouse (旧湊屋土蔵, Kyū-Minatoya Dozō) is a Dozo-zukuri storehouse in Tsutsumicho, Okoshi, in the city of Ichinomiya, Aichi Prefecture, built between the closing years of the Edo period and the early Shōwa era and registered as a Registered Tangible Cultural Property in 2010. Its floor area is 111 square metres. Most of it rises two storeys, with a single-storey section between, under Kirizuma-zukuri roofs of Sangawara-buki pantiles.

What looks like one storehouse is in fact three linked in a row. A two-storey west storehouse and a two-storey east storehouse stand along the old highway, and the gap between them is roofed over as a single-storey middle storehouse. The Agency for Cultural Affairs summary calls the outer pair the east and west kura.

The building occupies the northwest corner of its plot. At the southwest corner, facing the road, stands the Former Minatoya Store and Main House. If the shop was the household's face to the highway, the Former Minatoya Storehouse held what the household actually traded in. Both were registered on the same day as separate entries.

How Three Buildings Became One

The Former Minatoya Storehouse was not put up in a single campaign. The detailed commentary published by Aichi Prefecture reconstructs the sequence as follows.

The west storehouse came first, in the late Edo period. The east storehouse followed at some point before the end of the early Shōwa era. After the Second World War the west storehouse was taken down and rebuilt alongside the east one, gaining an extra bay at the rear in the process. At the same time the middle storehouse was inserted between the two, and an antechamber 2.2 metres deep was added across the fronts of the west and middle sections. That history is why the national database gives the date in three parts: 1830 to 1867 and 1926 to 1945 for the fabric, 1946 to 1965 for the relocation and extension.

The group that maintains the property reports that an ink inscription dated 1855 was found in the west storehouse. If the date holds, that section carries the oldest timber on the site. When the Nōbi earthquake struck in October 1891 and brought down most of the houses in Okoshi post town, this storehouse is said to have stayed up alongside the main house.

Sections added, a building shifted, roofs thrown across the gaps: more than a century of adjustments produced the composite standing there now. The phrase the Agency for Cultural Affairs uses, a storehouse of unusual form, describes the outcome of that accumulation.

Why It Was Registered

The Former Minatoya Storehouse was registered under the criterion covering buildings that contribute to the historic landscape of the country. The official assessment describes it as a storehouse of unusual form making up part of a merchant household's compound. The recognition rests on the pairing with the store and main house, and on what the two together do to the streetscape of the old Mino Road.

Registration assumes continued use by the owner rather than freezing a building as a monument. The Former Minatoya Storehouse remains privately owned and still has a place in the working life of the property.

The idea of a yashiki-gamae, a merchant compound, may need a word of explanation for visitors from outside Japan. A trading household laid out its ground to a set pattern: the shop on the highway, the living quarters behind it, and the storehouses holding goods and valuables at the back or the side. Complete sets rarely survive. The value of this storehouse is measured inside that relationship.

White Plaster Against Dark Board

The first thing the eye registers is white. The gable ends of the west and east storehouses are sealed in lime plaster, and the two white gables line up across the front. The flanks, by contrast, are finished in horizontal boarding, and the timber takes the eye down from the brightness above. That vertical switch between white and dark brown sets the character of the whole building.

The boarding on the west face uses a technique called sasarako shitami-itabari, in which the overlapping horizontal boards are held by slender vertical battens notched in steps to fit each lap. The same finish appears on the flank of the Former Minatoya Store and Main House. One detail is enough to show that both buildings were dressed by the same hands.

Windows with small tiled hoods open on the fronts of the west and east storehouses and on the west face of the west storehouse, at both levels. The hoods throw rainwater clear of the plaster below, and they are there for use rather than for show.

The west storehouse measures 7.5 metres by 3.8 metres over two storeys and is entered Tsumairi, through the gable end. A pair of thick earthen doors sits at the centre of its front, backed by three sliding wooden panels. The east storehouse is 7.5 metres by 4 metres, and its Tomae doorway runs through an earthen door, a wooden panel and a lattice screen in turn. The heavy earth stops fire, the boards keep out dust, and the lattice lets air move. Layers like these are what a storehouse needs when it is fighting damp and fire at once.

Both outer sections are framed with noboribari, rafter beams pitched along the slope of the roof instead of horizontal tie beams carrying struts, which leaves the upper floor clear. The middle storehouse linking them is 7.5 metres by 4.6 metres, single storey, roofed Hirairi in gable form with pantiles. The connecting piece, oddly enough, is the widest of the three.

Visiting

The interior of the Former Minatoya Storehouse is not open. The building is privately owned and has been used for storage rather than adapted for visitors. The exterior can be seen from the old highway side, where the white gable walls and the hooded windows face out, and photography from the public road is unrestricted.

The Former Minatoya Store and Main House on the same plot is partly open: its entrance hall, living room and kitchen now house a teahouse called Chaten Minatoya, trading on Wednesdays, Saturdays and Sundays from 10 a.m. to 3:30 p.m., with last orders at 3 p.m. and a closure around the New Year. Information current as of 1 September 2026. Calling in on an opening day is the easiest way to work out where the storehouse sits within the compound. Drinks start at around 400 yen, and nothing is charged for looking at the buildings from outside.

By public transport, begin at Owari-Ichinomiya Station on the JR Tōkaidō Line or Meitetsu Ichinomiya Station. From bay 2 of the bus terminal on the west side of the station, the Meitetsu bus for Okoshi takes about 20 minutes; from the terminus it is roughly 8 minutes on foot to the north. The site of the licensed Kiso River ferry landing and the remains of the post town's secondary inn lie within walking distance, so the old Mino Road can be followed on foot from here.

Opening days shift when events are held, so a phone call ahead is worth the trouble if you are coming any distance.