A tea room of three and a fraction mats
The Kamiya Family Residence Koan Teahouse (神谷家住宅孤葊, Kamiya-ke Jūtaku Koan) is a late Edo-period tea room in Shinsakae, Naka Ward, Nagoya City, Aichi Prefecture, registered as a National Registered Tangible Cultural Property on 13 August 2012. It is a single-storey timber structure roofed in copper sheet, with a floor area of just 10 square metres, standing on the garden side of the Hakuroken wing towards its western end.
The roof is gabled. Inside there is nothing but a tea room of three mats plus a daime mat and a preparation area. A daime mat is cut to roughly three quarters of the standard length, compressing the host's serving position so that more of the room is left to the guests.
Built in the closing years of the Edo period, the Kamiya Family Residence Koan Teahouse was moved to this site in 1911. Its registration number is 23-0342.
Timber with a history attached
The registration criterion is contribution to the historic landscape of Japan, and what carries this building is not its size but the provenance of its materials and the nerve of its design. According to the Agency for Cultural Affairs commentary, the thick round post beside the alcove and the alcove lintel, which retains colouring in a linked-ring pattern, are said to be timber salvaged from construction work at Nagoya Castle.
That is a tradition rather than a documented fact. Even so, the reuse of castle offcuts in townspeople's tea buildings was not unusual among Nagoya craftsmen, and the lintel with its colouring still legible gives the story something to rest on.
Three further buildings on the same plot were registered on the same day: the Hakuroken wing, the waiting arbor and the inner gate. Because the tea room, the waiting place and the gate all survive together, the complete shape of a roji, the garden path leading to a tea room, can still be read here.
What to look for
The sheer girth of the alcove post would be unremarkable in a hall of ten mats or more. In a room of three mats and a daime it dominates. Bringing an oversized member into a tight space is an aggressive decision by the standards of tea room design.
The coloured linked-ring pattern on the alcove lintel is the second thing to notice. Painted ornament of this kind is normally suppressed in a tea room built around the aesthetics of restraint. The Kamiya Family Residence Koan Teahouse sets that convention aside and lets the history of its salvaged timber show.
Consider also where the openings face. The building leans against the south side of Hakuroken and looks across the garden towards the waiting arbor. The angle at which a seated guest sees the garden was fixed at the outset.
Visiting and access
This is part of a private residence and is not open to the public. The grounds cannot be entered, and since the plot is now enclosed by later buildings the tea room cannot realistically be seen from the street either. Approaching the property to look or photograph is not appropriate. Locating the block and observing the surrounding townscape is as far as a visit can reasonably go.
The address is 2-chome Shinsakae, Naka Ward. The block lies east of Shinsakaemachi Station on the Higashiyama subway line, about five minutes on foot. Travellers who want to see tea architecture in Naka Ward that is actually accessible should consult the City of Nagoya list of cultural properties, which includes several registered tea buildings whose opening arrangements differ from one another.
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Q&A
- Can visitors see the Kamiya Family Residence Koan Teahouse?
- No. It belongs to a private home that is closed to the public, and surrounding buildings block any view of it from the street.
- What kind of tea room is the Kamiya Family Residence Koan Teahouse?
- A small one: single-storey timber with a copper roof, 10 square metres in area, containing a three-mat-plus-daime tea room and a preparation space.
- When was it built and when was it moved?
- It dates from the late Edo period and was relocated to the present site in 1911. Registration followed on 13 August 2012.
- Is the Nagoya Castle timber story true?
- The Agency for Cultural Affairs records it as something handed down, not as established fact. It applies to the alcove post and the coloured alcove lintel.
- What else stands on the same plot?
- The Hakuroken sukiya wing, a waiting arbor and an inner gate, all three registered on the same date in 2012.
Basic Information
| Name | Kamiya Family Residence Koan Teahouse (神谷家住宅孤葊) |
|---|---|
| Location | 2-1004 Shinsakae, Naka Ward, Nagoya City, Aichi Prefecture |
| Designation | Registered Tangible Cultural Property (Building) |
| Year Designated | 2012 (Heisei 24), registered |
| Quantity | 1 building |
| Dimensions | Single-storey timber, floor area 10 square metres |
| Owner | Private |
| Public Access | Not open to the public; not visible from outside |
References
- Agency for Cultural Affairs, National Cultural Properties Database: Kamiya Family Residence Koan
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00009288
- Cultural Heritage Online: Kamiya Family Residence Koan
- https://online.bunka.go.jp/heritages/detail/230361
- City of Nagoya: Nationally Registered Cultural Properties
- https://www.city.nagoya.jp/kankou/rekishi/1017268/1034462/1017208.html
- Nagoya Rekimachi Net: Historic Buildings and Cultural Properties
- https://www.nagoya-rekimachinet.jp/bunkazai/
Last verified: 2026.08.30