What is the Hosaka Family Residence Main House?
The Hosaka Family Residence Main House (保阪家住宅主屋, Hosaka-ke Jūtaku Omoya) is a single-storey timber house in Tonome, Joetsu City, Niigata Prefecture, built in 1949 and registered as a Registered Tangible Cultural Property on March 6, 2024, under registration number 15-0588.
It covers a building area of 111 square meters. The Agency for Cultural Affairs lists the roof as tiled and partly sheet-metal in its structural summary, and as sheet-metal in its descriptive note. The house stands facing south in the middle of the large plot of the Hosaka, once among the biggest landowners in Niigata, and the estate is still the home of the twelfth-generation head of the family.
Why the Hosaka Family Residence Main House was registered
The Hosaka Family Residence Main House was registered as a building that contributes to the historic landscape of the country. The Agency singles out its exterior, a series of gabled roofs stacked one behind another, as something that shapes the look of the whole estate.
Of the five registered buildings on the estate, only the greenhouse is younger. The family's own guide calls the Meiji-era Igantei guest hall the "old Hosaka residence" and says it passed out of the family around 1948, after land reform. The present main house went up the following year, and the annex to its west was extended in that same year, 1949. Read side by side, the dates suggest the center of the household shifted to new buildings in those years.
Stacked gables and a reception room without nageshi
Omoya simply means "main house." This one is a single-storey building with a gabled roof, entered from the gable end (Tsumairi), with a kitchen wing attached on the north. On the south side is a gabled porch that the Agency's photograph labels the guest entrance. Seen from the front, the porch gable sits in front of the gable of the main block, so the roof ends step back one after the other.
Inside, a corridor runs north from the entrance along one side (Katarōka), with two rooms on its east side. The southern room is the zashiki, the formal reception room, yet it has no Nageshi, the horizontal tie beam that usually marks a room's formality. The Agency describes the design as plain, and the omission fits a postwar family house that kept decoration to a minimum.
At 111 square meters, the main house is less than half the size of the Igantei on the same estate (257 square meters). For the home of one of the prefecture's great landowning families it is modest, a building for everyday living rather than for show.
Seeing the Hosaka Family Residence Main House
The Hosaka Family Residence Main House is a private home and is normally closed. The estate opens on the days of the Joetsu Meika joint openings in spring and autumn and for booked groups, but how much of the main house interior can be entered depends on the arrangements for each opening. Check on the day whether photography is allowed.
For the exterior, stand in front of the guest entrance on the south side, where the gabled porch and the roofs stepping back behind it can be seen together. Directions and opening dates are on the Hosaka Family Residence (Joetsu) page.
Q&A
- Can I visit the Hosaka Family Residence Main House?
- The Hosaka Family Residence Main House is a private home and is normally closed. The estate opens during the Joetsu Meika joint openings, usually in May and November, and for booked groups. The autumn 2026 opening is on November 7 and 8 from 10:00 a.m. to 3:00 p.m.
- When was the Hosaka Family Residence Main House built?
- In 1949. The annex to the west, linked to it by a covered corridor, was extended in the same year.
- How is the Hosaka Family Residence Main House built?
- It is a single-storey timber building with a gabled roof, entered from the gable end, covering 111 square meters. A kitchen wing is attached on the north and a gabled guest entrance on the south.
- What is unusual about the reception room in the Hosaka Family Residence Main House?
- Two rooms line the east side of a corridor running north from the entrance, and the southern one is the reception room. It is finished plainly, without the nageshi tie beam usually found in formal rooms.
- Why is the Hosaka Family Residence Main House a Registered Tangible Cultural Property?
- Its stacked gabled roofs shape the look of the estate, and it was registered on March 6, 2024, as a building that contributes to the historic landscape of the country. Its registration number is 15-0588.
Basic Information
| Name | Hosaka Family Residence Main House |
|---|---|
| Location | 489-1 Terabata, Tonome, Joetsu City, Niigata Prefecture, and other lots |
| Designation | Registered Tangible Cultural Property (Building) |
| Year Designated | Registered March 6, 2024 |
| Quantity | 1 building |
| Dimensions | Single-storey timber building, tiled roof partly sheet-metal, building area 111 m² |
| Owner | Private owner |
| Public Access | Normally closed; the estate opens during the spring and autumn Joetsu Meika joint openings and other occasions |
References
- Agency for Cultural Affairs, Database of National Cultural Properties: Hosaka Family Residence Main House (Japanese)
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00014784
- Cultural Heritage Online: Hosaka Family Residence Main House (Japanese)
- https://online.bunka.go.jp/heritages/detail/583362
- Agency for Cultural Affairs, Database of National Cultural Properties: Igantei (Japanese)
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00014788
- Joetsu City: List of Registered Tangible Cultural Properties (Buildings) in Joetsu (Japanese, PDF)
- https://www.city.joetsu.niigata.jp/uploaded/attachment/273003.pdf
- Hosaka-tei: Guide to the house (Japanese)
- https://hosakatei.ehoh.net/guide.html
- Joetsu Meika Network: Autumn joint opening, posted September 26, 2026 (Japanese)
- https://joetsu-meika.com/2026/09/26/%e4%b8%8a%e8%b6%8a%e5%90%8d%e5%ae%b6%e4%b8%80%e6%96%89%e5%85%ac%e9%96%8b%e3%83%bb%e7%a7%8b%e3%81%ae%e5%85%ac%e9%96%8b-3/
Last verified: 2026.10.21
