Harayama Family Residence Wall

Twelve Metres of Earthen Wall in Matsushiro

The Wall of the Harayama Residence (原山家住宅塀, Harayama-ke Jūtaku Hei) is a late Edo-period earthen wall in the Babachō quarter of Matsushiro, Nagano City, Nagano Prefecture, entered on Japan's Register of Tangible Cultural Properties on 10 September 2010. It stands about 1.8 metres high and runs 12 metres.

It occupies the eastern edge of the plot, continuing north from the front gate. Square posts rise at 1.2-metre intervals, and the bays between them are packed and plastered with earth. The roof is laid with pantiles and carried on projecting bracket arms.

The registered name is simply "wall," though the Agency for Cultural Affairs describes the construction as dobei, an earthen wall, and the local preservation group that reported the 2010 advisory decision used that word too. The terminology varies; the object does not.

Its registration number is 20-0362. The servants' quarters (20-0360) and the front gate (20-0361) were registered the same day, and the consecutive numbering reflects the fact that the three were considered together.

Two Faces, One Wall

The most rewarding thing about this wall is that it is built differently on its two sides.

Toward the street it is ōkabe, "great wall" construction: the posts disappear inside the earth, and the surface reads as one continuous plane, finished with the mid-coat render and no white top coat. Toward the garden it is shinkabe, "true wall": posts stay visible, and the horizontal nuki tie-beams that pass through them are left exposed.

Outside, a smooth field of earth. Inside, the skeleton on display. Asking which is the wall's real appearance misses the point, since a boundary is a thing with two audiences and was built accordingly.

The bracket arms carrying the roof push the tiles outward beyond the wall face. The practical purpose is to throw rainwater clear of the earth below, which would otherwise erode. The visual consequence is a horizontal line of tile and a band of shadow along the street, giving depth that a plain earth surface could never produce on its own.

The 1.2-metre post spacing is worth a moment as well. That is roughly four shaku in the old measure, and twelve metres divides into ten such bays, so the wall was set out on a regular grid rather than improvised to fit the ground.

What "Contributing to the Landscape" Means Here

Japan created the registration system for tangible cultural properties in 1996 as a lighter alternative to designation. Where an Important Cultural Property is selected for exceptional value and tightly controlled, registration works largely through notification: owners retain broad freedom to use and adapt their buildings, and in return agree to inform the government before significantly altering the exterior. The aim was to bring a very large stock of ordinary historic buildings under some protection before it disappeared.

Three criteria exist, and the Harayama wall met exactly one: that it contributes to the historical character of the national landscape. Neither rarity nor artistic distinction was claimed for it.

That criterion is what allows a wall to be registered as a full item, on the same footing as a building. It also explains why the register covers the servants' quarters, the gate and the wall while leaving out the main house. What is being protected is not the dwelling but the continuous edge the property presents to the road. The wall has no interior and no rooms, yet from the street it does indispensable work, linking gate to quarters and drawing the outline of the plot.

There is a practical reason this matters in Matsushiro. Minutes of Nagano City's traditional environment preservation council record concern that concrete block walls have been replacing older ones and that samurai residences have continued to come down. Earthen walls are vulnerable to rain and frost and survive only through repeated partial repair, which is expensive and rarely urgent until it is too late. In townscape conservation the high-maintenance elements go first. Twelve surviving metres of late Edo-period earthen wall is not an ordinary thing to find here.

Visiting is straightforward but limited. The Harayama Residence is a private home and the grounds are closed, so while the street face of the wall can be seen freely from the road at any hour, the shinkabe side with its exposed tie-beams is not accessible. Keep photography to the public roadway. From Nagano Station's Zenkōji exit, Alpico Kōtsū bus route 30 reaches the Matsushiro-eki stop in about thirty minutes, and Babachō lies 800 metres to the south. Combined with Matsushiro Castle, the Sanada Treasure Museum and the former Yokota Residence, which is open to visitors, the walk fills a comfortable half day.