A Nine-Mat Room for the Brewery's Guests

The Ayagiku Sake Brewery (formerly Izumiya Sake Brewery) Detached Tatami Room (綾菊酒造(旧泉谷酒造場)離れ座敷, Hanare Zashiki) is a single-story timber reception room from the early Showa period in Yamadashita, Ayagawa Town, Kagawa Prefecture, registered as a national Registered Tangible Cultural Property on March 2, 2006. It was built as a Zashiki, a formal tatami room, where the brewery entertained its visitors.

The Detached Tatami Room stands southeast of the East Sake Storehouse, attached to the east side of the office, with its ridge running east to west. It measures two and a half bays by three bays (a bay, or ken, is roughly 1.8 meters), with a building area of 33 square meters, and inside is a single room of nine tatami mats. The storehouses beside it range from 318 square meters to 474 square meters, so this building is about a tenth of their size.

Like the Middle and East Sake Storehouses, it carries "formerly Izumiya Sake Brewery" in its registered name, recording that it once belonged to the Izumiya brewery.

Why a Room, Not a Storehouse, Was Registered

The Detached Tatami Room was registered as number 37-0306 under the criterion of contributing to the historic landscape. The Agency for Cultural Affairs notes that, small as it is, it preserves a picture of how the brewery once operated.

A sake brewery was never just a set of brewing halls. Receiving buyers and business partners, and hosting them properly in a tatami room, was part of the trade. At Ayagiku that space survives right beside the storehouses, joined to the office. The Detached Tatami Room shows that this compound was a place for welcoming people as much as a place for making sake.

A Hipped Roof with a Stepped South Eave

The roof is hipped, in the Yosemune-zukuri form, and laid in Sangawara-buki pan tiles. On the south side only, the eaves drop down one step, so that the roof is laid in two tiers. This stepped form is called shikoro-buki, after the shikoro, the layered neck guard that hangs in tiers from a Japanese warrior's helmet.

That southern step is the detail to look for on the Ayagiku Detached Tatami Room. Of the four slopes of the hipped roof, only the south one breaks partway down and reaches out lower. The south is presumably the side the room opens onto, and the lowered eave can be read as a way to deepen the overhang, though no primary source states the intention.

At two and a half bays by three, the building is slightly deeper north to south than it is wide east to west. Because the ridge runs east to west, the roof ends up with a short ridge along that axis.

Visiting the Detached Tatami Room

The Detached Tatami Room is attached to the office and is far less conspicuous from the road in front than the storehouses. The interior is not advertised as open to the public.

The brewery's reservation-only tours center on the storehouses and the production facility, and it has not published whether the Detached Tatami Room is included. If you want to see it, ask when you book whether you can at least view the exterior, and check on photography at the same time.

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Q&A

QWhat is the Ayagiku Sake Brewery Detached Tatami Room?
AA single-story timber reception room built for entertaining the brewery's guests. It is attached to the east side of the office, has one nine-mat room inside and a building area of 33 square meters.
QWhen was the Ayagiku Detached Tatami Room built and registered?
AThe Agency for Cultural Affairs dates it to the early Showa period. It was registered as a Registered Tangible Cultural Property on March 2, 2006, as number 37-0306.
QWhat is the shikoro-buki roof on the Ayagiku Detached Tatami Room?
AA roof laid in two tiers, with a step partway down. On the Detached Tatami Room, only the south side of the hipped roof has its eaves dropped one step in this way.
QWhy was such a small building as the Ayagiku Detached Tatami Room registered?
AThe Agency for Cultural Affairs values it because, despite its nine-mat size, it preserves a picture of the brewery in its earlier days. It was registered for its contribution to the historic landscape.
QCan I go inside the Ayagiku Sake Brewery Detached Tatami Room?
AThe interior is not advertised as open to the public, and it is not published whether brewery tours include it. If you are interested, ask the brewery when you book a tour.

Basic Information

NameAyagiku Sake Brewery (formerly Izumiya Sake Brewery) Detached Tatami Room
Location3393-1 Sakuramoto, Yamadashita, Ayagawa-cho, Ayauta-gun, Kagawa Prefecture
DesignationRegistered Tangible Cultural Property (Building)
Year DesignatedRegistered March 2, 2006
Quantity1 building
Dimensions2.5 by 3 bays (ken); building area 33 m²; one room of 9 tatami mats
OwnerAyagiku Sake Brewery Co., Ltd.
Public AccessInterior not open to the public; ask when booking a brewery tour whether it can be viewed

References

Agency for Cultural Affairs, Database of National Cultural Properties: Detached Tatami Room (Japanese)
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00005380
Cultural Heritage Online: Detached Tatami Room (Japanese)
https://online.bunka.go.jp/heritages/detail/141148
Kagawa Prefectural Board of Education: Registered Tangible Cultural Properties in Kagawa (Japanese)
https://www.pref.kagawa.lg.jp/kenkyoui/shogaigakushu/bunkazai/culturalassets/culturalassets_16.html
Ayagiku Sake Brewery Co., Ltd.: Brewery Tours (Japanese)
https://www.ayakiku.com/?tid=1&mode=f3

Last verified: 2026.09.24