Hirose Family Residence

A Grain Merchant's Storehouse in Tsudanuma

Tsudanuma today is a crowded commuter district on the seam between Narashino and Funabashi, its station ringed by department stores and bus bays. Walk a few minutes off the main road, though, and a two-story building with white plaster walls and a dark wooden skirt still stands where it was raised in 1891. This is the storehouse, or kura, of the Hirose family residence, built when the household ran a wholesale trade in grain and the shore of Tokyo Bay lay close enough to load and unload boats.

The footprint is modest, about 52 square meters, four bays long and two and a half bays deep. But the walls climb a full two stories under a gabled roof of pantiles, its ridge running east to west. A building like this is called a dozō: an earthen storehouse whose thick clay-and-plaster walls were built to shrug off fire and to hold a steady, cool interior. What they held here were sacks of unhulled rice, barley, millet and other grains.

The Family Who Built the Estate

The man who brought the Hirose compound into the shape we partly see today was Hirose Akinosuke, born in 1865 in Kukuta, the old name for this stretch of Tsudanuma. He ran the family grain business and held a run of local posts over his lifetime: town councillor, honorary deputy mayor, member of the Chiba county assembly, head of the fishing cooperative.

Before any of that he had been a student. He studied at a private academy in nearby Funabashi that taught wasan, the indigenous mathematics that flourished in Edo-period Japan, and at a school in the Kanda district of Tokyo devoted to the Chinese classics. The Hirose house still keeps the books he used. They turn out to record lessons reaching from calculus down to the plain arithmetic of estimating how much rice or barley a field would yield, a small window onto how a country merchant's son was actually educated.

The family also traces its line back to a carpenter, Hirose Yahei, recorded in local history as the builder of the Niō gate at Hokekyō-ji, the great Nichiren temple in present-day Ichikawa. Yahei is credited with the main house of the residence, which was carried to this site at the close of the Meiji era and reworked into a combined shop and home. The storehouse, though, was someone else's work.

A Carpenter Named on the Ridge

We know who built the storehouse because his name survives where buildings often keep their records: the munafuda, a wooden plaque fixed to the ridge when the frame went up. It names the master carpenter as Murayama Iwakichi, from the neighboring village of Saginuma. A munafuda was the period's combined builder's signature, construction date and prayer for the structure's safety, tucked out of sight in the roof. Iwakichi's storehouse has now stood for more than 130 years, which says something about the joinery he hid up there.

Why the Storehouse Is Protected

Japan looks after its old buildings on two levels. The stronger one, designation, produces Important Cultural Properties and National Treasures, with tight rules on what an owner may change. The lighter one, registration, was introduced in 1996 to cover the far larger stock of buildings more than fifty years old that give a town its grain: farmhouses, shops, bridges, storehouses. It protects them without freezing them.

The Hirose storehouse is a Registered Tangible Cultural Property, listed in July 2003 alongside three other buildings on the estate: the main house, a second warehouse, and the small canopy over the well. The reason recorded for listing it is straightforward. It is a clean, well-made model of its type, a Meiji grain merchant's working kura, the kind of building that is easy to lose precisely because it was ordinary.

What to Notice

From the outside, the detail to find is the siding. The lower walls are faced with horizontal boards pinned by slender vertical battens, a finish called sasarago-shitami. It kept rain off the earthen wall behind while still letting the clay breathe, the practical answer to a humid coastal climate.

On the north face a single-bay lean-to roof reaches out over a working forecourt called the kura-mae, the apron of sheltered ground where goods were carried in and out through the doors. It is a reminder that this was a place of labor, not display.

The strongest impression waits inside. For a storehouse of this size the framing is heavier than it needs to be for its own roof: thick beams crossing overhead, sized for the dead weight of grain piled on the upper floor. Builders of grain kura oversized the timber on purpose, and the dim, beam-crossed space overhead is the part of the building that has changed least since 1891.

Part of a Working Estate

The storehouse never stood by itself. It belonged to a merchant's compound set on a telling line in the old geography, between the inland Kazusa highway and the shore of Tokyo Bay, which then came far closer than the reclaimed flats of today let on. A grain wholesaler needed both: the road for carts and customers, the water for boats.

The other registered buildings round out the picture. The second warehouse, raised in 1909 and later moved and rebuilt, was framed in the kakuyose manner, its walls a near-forest of closely set posts rather than thick earthen plaster. The well canopy, a light open-sided shelter from the 1930s, completes the everyday fabric of how such a business lived and worked.

Seeing It, and the Area Around It

One point matters before you plan a visit. The Hirose residence is a private home, still owned and lived in by the family. It is not a museum, it is not open for tours, and Japan's registration system does not oblige owners to admit anyone. Treat it as a piece of the streetscape to know about rather than a door to knock on.

If you want to actually step inside a folk house of the Bōsō region, Narashino keeps two that are open and free. The former Tokita residence, in Mimomi Hongō Park, is a rare L-shaped magariya, a form far more common in northern Japan than here. The former Ōsawa residence, in Fujisaki Forest Park, has a thatched main house dated to 1664 and ranked among the oldest surviving dwellings in eastern Japan. Both are Chiba prefectural cultural properties, generally open from 9:30 to 16:30 and closed on Mondays; periodic re-thatching can close them for months, so it is worth checking ahead.

Nature sits close by too. The Yatsu tidal flat, a registered international wetland with a public observation center, draws migrating shorebirds onto a patch of mudflat hemmed by the city, and the Yatsu Rose Garden flowers heavily in late spring and autumn. Tsudanuma itself is reached on the JR Sōbu line and the Keisei line, putting all of this within a short trip from central Tokyo.