A Merchant's House Behind a Black-Plastered Wall

Set back from the old Nakasendō highway in Echigawa, the main house (shuoku) of the former Tanaka Family Residence stands at the centre of a deep, walled compound. It faces west toward the street, its plastered gable end and long clay-tiled roof reading, to anyone who slows down along the post town, as the home of a family that had done very well.

The Tanaka family traded under the shop name Tagen. Their business began in 1818, when the first Genji Tanaka worked the roads out of Echigawa as a peddler of hemp cloth and mosquito nets woven in the province of Ōmi. Later generations opened premises in Kyoto and Tokyo, and by the early twentieth century the family had become the highest tax-payer in the district. This house was built for a branch of that family, and its scale reflects the money that hemp and textiles brought back to a small town in the plain east of Lake Biwa.

The main house was completed in 1919, during the eighth year of the Taishō era. It is timber-framed, two storeys with a single-storey portion, roofed in pantile (sangawara) over a gabled form, with a lean-to eave (geya-bisashi) shading the south face. Its footprint covers roughly 181 square metres, the largest of the five registered buildings on the site.

Rooms in the Shape of the Character for "Field"

What earned the building its place on the national register is the quality of its plan. Both floors are laid out in the ta-no-ji pattern, four rooms arranged in a grid that resembles the written character 田, meaning a rice field. On the ground floor the entrance sits on the south side; the reception rooms to the north are braced with horizontal tie-members (sashimono) that lock the posts together, a joinery choice that speaks to careful carpentry rather than showy decoration.

Verandas run along the east and west faces, opening the rooms toward the garden and letting light move through the interior across the day. This openness is deliberate. A merchant family received guests, negotiated, and displayed its standing at home, and the plan gives the north reception rooms both privacy and a view. The carpenter of record was a master builder named Mitsushima Masakichi, who oversaw the whole compound.

The Agency for Cultural Affairs registered the main house under the criterion for structures that serve as a model of design (zōkei no kihan). In plainer terms, it was judged a well-made, representative example of the substantial merchant dwellings put up in this region in the early modern decades, worth keeping as a reference for how such houses were built.

What to Look For on a Visit

The residence is no longer a private home. Since 1994 it has operated as Ōmi Shōnintei, a restaurant serving freshwater fish from Lake Biwa and seasonal dishes, so the main house is entered as a guest coming to eat rather than as a museum visitor. Meals are by reservation only, which means the rooms keep the quiet of a house rather than the traffic of an attraction.

Sit in the north reception rooms and look for the tie-members overhead, and for the way the veranda edge dissolves the line between floor and garden. From the main house the garden reads as a tall, narrow composition; it was laid out in 1933 by Yamamura Bunshichirō, third head of the Hanabun firm, in the Donketsu tradition, and stocked with fine stones including a lantern attributed to the noted mason Nishimura Kahei. The buildings and the garden were designed to be read together, and the main house is the place to begin.

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Q&A

QCan I go inside the main house?
AYes, but as a dining guest. The residence operates as the Ōmi Shōnintei restaurant, and access is by reservation only. There is no separate museum admission.
QWhen was the main house built?
AIn 1919, the eighth year of the Taishō era. It was the first of the residence's buildings to be newly constructed on this scale, with an earlier storehouse from 1892 reused on the site.
QWho were the Tanaka family?
AŌmi merchants trading as Tagen, dealers in hemp cloth and mosquito nets who expanded from Echigawa to Kyoto and Tokyo. The house was built for a branch of the family.
QHow do I get there?
AThe site is about a five-minute walk from Echigawa Station on the Ōmi Railway, along the old Nakasendō highway in Aishō, Shiga Prefecture.
QIs the main house protected as a cultural property?
AYes. It is a Registered Tangible Cultural Property (Building), listed by the national government in October 2008 together with four other structures on the site.

Basic Information

NameFormer Tanaka Family Residence (Ōmi Shōnintei), Main House
Location46-1 Nakajuku, Aishō, Echi District, Shiga Prefecture
DesignationRegistered Tangible Cultural Property (Building), national register
Registered23 October 2008 (announced 10 November 2008); 61st round of registration
Registration No.25-0262
Date of construction1919 (Taishō 8)
StructureTimber-framed, two storeys with single-storey portion; tiled roof; floor area approx. 181 m²
Registration criterionA structure serving as a model of design
Present useRestaurant (Ōmi Shōnintei); reservation only

References

National Cultural Properties Database (ACA) — Former Tanaka Family Residence, Main House
https://kunishitei.bunka.go.jp/heritage/detail/101/00007363
Cultural Heritage Online — Former Tanaka Family Residence, Main House
https://online.bunka.go.jp/heritages/detail/153965
Ōmi Shōnintei — official site, history
https://www.ohmishonintei.com/about/history.html
Town of Aishō — registered cultural properties
https://www.town.aisho.shiga.jp/soshiki/hakubutsukan/1/1/1035.html

Last verified: 2026.07.05