Maeda Family Residence, Store and Main House

A Merchant House on the Corner of the Pilgrimage Road

The Maeda Family Residence Store and Main House (前田家住宅店舗兼主屋, Maedake Jūtaku Tenpo-ken Shuoku) is a timber merchant house at Hommachi 5-chome in Aki City, Kochi Prefecture, built around 1929 and entered on Japan's national register of Tangible Cultural Properties on 21 June 2013.

It occupies a corner where the old henro route, the walking pilgrimage that circles Shikoku, turns through the commercial quarter of Aki. The house presents its front to the north, so the shop side catches the street and the living quarters retreat behind it. Built area is 152 square metres.

The national database records the structure as single-storey timber with a tiled roof, while the accompanying commentary calls it tsushi-nikai. The two are not in conflict. A tsushi loft is the low half-storey tucked under the roof slope of a townhouse, used for storage and for silkworms or bedding in some regions, and it sits too low to be counted as a full floor. Look at the street elevation and the loft reveals itself: a shallow band of wall above the shop front, pierced by small openings rather than proper windows.

Two roof forms meet here. The main volume carries an irimoya roof, hipped above and gabled at the peak, and a kirizuma gabled section joins it, both covered in sangawara pantiles. At the south-east corner a single-storey wing steps out from the mass. The register also notes a renovation carried out in the later Shōwa period, between 1966 and 1989.

What the Register Recognised

Registration was granted under a single criterion: that the building contributes to the historic landscape of the country. Its registration number is 39-0273, issued in the seventy-fifth round of registrations.

The distinction between a Registered Tangible Cultural Property (登録有形文化財) and a Designated one matters, and travellers often blur it. Designation as an Important Cultural Property or National Treasure places a building under strict permit control and heavy state involvement. Registration, introduced in 1996, works the other way round. It applies mainly to buildings roughly fifty years old or more, the owner continues to live in or trade from the property, and alteration requires notification rather than permission. The system was built for exactly this kind of house: privately owned, still in use, valuable as part of a street rather than as an isolated monument.

Aki City holds twelve registered groups in all, and the Maeda property was the eleventh to be added. The store and main house and the earth wall beside it were registered together on the same June day in 2013, as items fifty-six and fifty-seven on the city's list. That pairing is deliberate. Kochi Prefecture's register treats the house and its boundary wall as one composition, because the wall is what carries the building's presence out to the street corner.

The property is classified under tertiary industry, a category the Agency for Cultural Affairs uses for commerce and services. It is a shop first and a dwelling second, and the classification keeps that history visible.

Reading the Walls: Tosa Weather Made Visible

Stand at the east side of the building and count the tiles. Four narrow ledges of tile run horizontally across the plaster face, set one above another at intervals. These are mizukiri-gawara, drip tiles, and they exist because Kochi receives some of the heaviest rainfall in Japan along with the annual typhoon season. Each ledge throws water clear of the wall below it before the plaster can soak. Four tiers on a single elevation is a generous count.

The plaster itself is Tosa shikkui, a local lime finish mixed with straw that has been fermented in lime slurry rather than chopped in dry. The result reads warmer than the chalk white of plaster elsewhere, closer to cream, and it holds up under driving rain far better than ordinary shikkui.

Lower down, the base of the exterior wall is faced with tile rather than plaster, protecting the vulnerable strip where splash-back and ground damp attack.

On the roof, the pantiles are hidari-sangawara, laid in mirror image of the standard pattern so that the overlaps run the opposite way. This is a Kochi habit rather than a national one, and once you notice it, roofs across the old streets of Aki start to look different.

The frame deserves a moment too. The register singles out the quality of the timber and the care of the joinery, unusual praise in an entry of a few dozen characters.

One practical point before setting out. This is a private residence and shop, not a museum, and there is no interior access and no published opening hours. The building is viewed from the public road. Photograph the exterior from the street rather than stepping onto the site, and give the occupants the privacy any lived-in house deserves.

Aki Station on the Tosa Kuroshio Railway Gomen-Nahari Line lies about 1.1 kilometres to the east, roughly twenty minutes on foot. Walking the other way rewards the effort, because the route continues north-east for another two kilometres or so to Doi Kachū, the samurai quarter selected as an Important Preservation District, and to the Nora Clock, the hand-built farm clock that has become the emblem of Aki. The Sugimoto Family Residence, also registered and also in Hommachi, stands within the same district.