A shipping agent's shop on the Nagahama waterfront

The Suenaga Family Residence Former Main House (末永家住宅旧主屋, Suenaga-ke Jūtaku Kyū-shuoku) is a merchant's shop and dwelling built in Meiji 17 (1884) at 309 Nagahama-ko in Ozu City, Ehime Prefecture, and it was entered on the national register as a Registered Tangible Cultural Property on 31 January 2003 (Heisei 15).

Nagahama stands where the Hiji River empties into the Iyo-nada, the arm of the Seto Inland Sea that separates Shikoku from Kyushu. Timber, wax, paper and rice came downriver from the Ozu basin and changed hands here, moving from river craft to coastal vessels. The Suenaga family built its position on that transfer, running a kaisōgyō shipping and forwarding agency over several generations.

The ground floor of the Suenaga Family Residence Former Main House was laid out as the premises of Suenaga Shōten, combining shop and living quarters under one roof. The upper floor began as storage. A ceiling was inserted later and the space became habitable rooms, which is why the two levels do not read as a matched pair when you stand back and look at the facade.

Construction is Dozo-zukuri, the thick mud-and-plaster walling normally kept for storehouses, carried up through 2 storeys under a tiled roof, with a building area of 177 square meters. Agency for Cultural Affairs records name the master carpenter as Sumida Yatarō, reported to have been a local man.

What the register recognised

The Suenaga Family Residence Former Main House carries registration number 38-0037, entered under the criterion that a building serves as a model of design. Nothing about the plan is rare. What earned the entry is the treatment of the outside wall, where a working shopfront was given the finish of a fireproof storehouse and then decorated.

Stone is used at ground level. Above it, the waist of the second storey is faced with Namako-kabe, square tiles set flush and jointed with raised ridges of white plaster that cross in a lattice. The eaves of the second-floor roof are carried on Mochiokuri brackets, and the window surrounds are modelled in Shikkui rather than simply rendered flat. Black plaster covers the main wall surfaces, with grilles across the openings.

Anyone who has walked the merchant street of Uchiko, inland from here, will recognise the vocabulary. The Honhaga family house there uses the same grilled windows, the same black lime finish and the same tile-and-plaster lattice. Nagahama has no protected townscape district and no row of surviving frontages, so the Suenaga Family Residence Former Main House stands as a single specimen of a manner that was once general along this coast.

The Agency for Cultural Affairs record adds that the interior fittings repay attention as well, which is unusual phrasing for a register entry and suggests the decoration inside was not treated as an afterthought.

Looking at the building

Come in the morning if you can. The frontage faces so that low eastern light rakes across the plaster, and the Namako-kabe lattice only reads properly when the ridges throw shadows. Flat midday light flattens it into a grey grid.

Stand close enough to see that the Mochiokuri brackets are not carpentry left bare. They are wrapped in lime plaster and modelled, so the join between wood and coating disappears. The same hand shows around the windows, where the plaster is built up into raised frames. This is the work of a plasterer given time and money, on a building that belonged to a family with both.

The plot runs back from the street. Behind the Suenaga Family Residence Former Main House, at the northern end of the grounds, stands the Hundred-Mat Hall of 1927, a single-storey reception building registered separately on the same day. Seeing the two in sequence makes the point of each clearer: the commercial face at the front, the entertaining rooms at the back, 43 years apart. The site as a whole is signposted locally under the byname Hyakujō Hamayashiki.

An open area on the grounds carries display panels on the Suenaga family and on Nagahama's shipping trade, including photographs of the forwarding office in operation.

Visiting the Suenaga Family Residence Former Main House

The grounds are open daily from 9 a.m. to 5 p.m. and there is no admission charge. The site closes over the New Year period, from 29 December to 3 January. A car park is provided.

The exterior of the Suenaga Family Residence Former Main House can be examined at close range from within the grounds, which is where the plasterwork rewards the visit. Access to the interior is not offered on a walk-in basis; ask in advance through the cultural properties section of Ozu City, on 0893-57-9993, if you want to see inside. Ozu City is the owner.

Photography outdoors is not restricted, and the panels in the grounds are freely readable. For anything inside, or for tripods and commercial shoots, clear it with the city first.

By train, Iyo-Nagahama Station on the JR Yosan Line is roughly a 10 minute walk away; leave the station, head towards the river mouth and the old quarter, and the house is on the inland side of the port streets. Drivers reach Nagahama from central Ozu on National Route 378, which runs down the Hiji River to the coast. The red bascule bridge over the Hiji River, Nagahama Ōhashi, is a few minutes further on foot and gives a sense of why this port mattered.

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Q&A

QCan the Suenaga Family Residence Former Main House be visited, and is there an admission fee?
AYes. The grounds are open from 9 a.m. to 5 p.m. daily and entry is free. The site is closed from 29 December to 3 January.
QHow do I reach the Suenaga Family Residence Former Main House from the nearest station?
AIyo-Nagahama Station on the JR Yosan Line is about a 10 minute walk. By car, National Route 378 links central Ozu with Nagahama; parking is available on site.
QIs the interior of the Suenaga Family Residence Former Main House open to visitors?
AThe interior is not open on a walk-in basis. Enquire beforehand with the cultural properties section of Ozu City on 0893-57-9993. The grounds and the exterior can be seen without any arrangement.
QCan I photograph the Suenaga Family Residence Former Main House?
APhotography of the exterior from the grounds is not restricted. Interior photography, tripods and commercial work should be cleared with Ozu City in advance.
QWhen was the Suenaga Family Residence Former Main House built, and what was it used for?
AIt was built in Meiji 17 (1884) for the Suenaga family, shipping agents at the port of Nagahama. The ground floor served as the shop and dwelling of Suenaga Shōten; the upper floor was storage before being converted into rooms.

Basic Information

NameSuenaga Family Residence Former Main House
Location309 Nagahama-ko, Ozu City, Ehime Prefecture
DesignationRegistered Tangible Cultural Property (structure)
Year DesignatedRegistered 31 January 2003 (Heisei 15)
Quantity1 building
DimensionsBuilding area 177 square meters; 2 storeys, dozo-zukuri, tiled roof
OwnerOzu City
Public AccessGrounds open 9 a.m. to 5 p.m., free of charge; interior by prior enquiry

References

Agency for Cultural Affairs, National Cultural Properties Database: Suenaga Family Residence Former Main House
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00003160
Ozu City, Cultural Properties of Our Town: Suenaga Family Residence Former Main House
https://www.city.ozu.ehime.jp/site/bunkazai/0272.html
Ozu City Official Tourism Information (Visit Ozu): Suenaga Family Residence Former Main House
https://jp.visitozu.com/archives/highlight/182

Last verified: 2026.09.05