A Second Suite of Formal Rooms

The Iwase Family Residence New Reception Wing (岩瀬家住宅新座敷, Iwase-ke Jūtaku Shinzashiki) is a two-storey wing of formal rooms (Zashiki) built in the late Meiji period behind the main house of a salt-producing family's estate in Shinhamacho, Sakaide, Kagawa Prefecture; it was registered as a Registered Tangible Cultural Property on 29 March 2019 (registration no. 37-433).

The wing is attached to the northern rear corner of the main house. It is a wooden building of 2 storeys under a hipped roof (Yosemune-zukuri) of interlocking pantiles, running east to west, with a building area of 74 square metres. Downstairs is a suite of connected formal rooms; upstairs, at the west end, is one more.

The word shin, meaning new, marks it as a later addition to a main house built around 1890. The Agency for Cultural Affairs dates the wing to the late Meiji period, after the main house.

Why It Was Registered

The Iwase Family Residence New Reception Wing is valued for the quality of its decorative alcove fittings and for how consistently they were carried through.

The alcove post (Tokobashira) is a peeled and polished log, the raised front edge of the alcove floor is ebony, and the transom (Ranma) above the built-in writing bay (Tsukeshoin) is cut in a pattern the Japanese call tōmi-gasumi, bands of mist seen at a distance.

What the Agency singles out is that both floors share the same modern design. The upstairs room was finished to the same standard as those below, suggesting the whole wing was planned as a place to receive guests.

The 2018 recommendation treats the wing, together with the main house, as the core of the estate.

What to Look For

From outside, the interest lies in how the two roofs meet: the hipped roof of the east-west wing butts at a right angle against the hip-and-gable roof of the north-south main house, and the buildings step up in height as they go deeper into the property.

Inside, the play of materials is the point: the pale, smooth surface of the polished log post against the near-black ebony. The mist-pattern transom sits over the writing bay, where it would catch daylight filtering through paper screens.

The plan, with formal rooms at the north end of the main house leading straight into those of the Iwase Family Residence New Reception Wing, shows how far into the house a valued guest might be taken.

Seeing the Reception Wing

The wing is part of a private home and is not open to visitors. Because it stands behind the main house, it is almost entirely hidden from outside the property.

The Agency's database entry is the best available description of the interior. Directions and general viewing conditions for the estate are covered on the Iwase Family Residence page.

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Q&A

QCan you visit the Iwase Family Residence New Reception Wing?
ANo. It is part of a private home, and because it stands behind the main house it can hardly be seen from outside.
QWhen was the Iwase Family Residence New Reception Wing built?
AIn the late Meiji period, according to the Agency for Cultural Affairs, as an addition to a main house of around 1890.
QWhat is special about the rooms of the Iwase Family Residence New Reception Wing?
AA polished-log alcove post, an ebony alcove edge and a mist-pattern transom, with the same modern design used on both floors.
QHow is the Iwase Family Residence New Reception Wing connected to the main house?
AIt is attached at the northern rear corner, so the formal rooms of the main house lead directly into those of the wing.
QHow big is the Iwase Family Residence New Reception Wing?
AIt is a 2-storey wooden building with a hipped tiled roof and a building area of 74 square metres.

Basic Information

NameIwase Family Residence New Reception Wing
Location3328 Shinhamacho, Sakaide, Kagawa Prefecture
DesignationRegistered Tangible Cultural Property (Building)
Year DesignatedRegistered 2019/03/29 (Heisei 31)
Quantity1 building
DimensionsWooden, 2 storeys, tiled roof; building area 74 square metres
OwnerPrivate individual
Public AccessNot open to the public (private residence)

References

Iwase Family Residence New Reception Wing, Database of National Cultural Properties (Agency for Cultural Affairs)
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00012826
Registration of Tangible Cultural Properties (Buildings), press release of 16 November 2018 (Agency for Cultural Affairs, Japanese)
https://www.bunka.go.jp/koho_hodo_oshirase/hodohappyo/__icsFiles/afieldfile/2018/12/14/a1411175_01_1.pdf
List of Cultural Properties (Sakaide City, Japanese)
https://www.city.sakaide.lg.jp/soshiki/bunkashinkou/bunkazaiichiran.html
Registered Tangible Cultural Properties in Kagawa Prefecture (Kagawa Prefectural Board of Education, Japanese)
https://www.pref.kagawa.lg.jp/kenkyoui/shogaigakushu/bunkazai/culturalassets/culturalassets_16.html

Last verified: 2026.09.24