A Showa-Era Guest Wing Off a Thatched Farmhouse

The Ito Family Residence Annex (伊藤家住宅離れ, Itō-ke Jūtaku Hanare) is an early Showa-era guest wing on the Ito family estate in Masuo 4-chome, Kashiwa, Chiba Prefecture, registered as a Registered Tangible Cultural Property on November 2, 2018. It is a 2-storey timber building with a tiled roof and a building area of 32 square metres, set behind the south side of the main house and linked to it by a covered passage.

The roof is a hip-and-gable Irimoya-zukuri form laid with Sangawara-buki pantiles. Both floors rise to the same footprint, and the walls are clad in overlapping horizontal boards, the Shitami-itabari finish. Walk the passage from the thatched late Edo main house and you arrive in a building of tile and weatherboard: materials and centuries change within a few steps.

The plan is simple. Each floor holds a single Zashiki room. On the ground floor, large bay windows project on the south and west sides, and the north wall carries the alcove fittings of a formal reception room. This was never family living space; it was built for guests.

Dating and Why It Was Registered

The Agency for Cultural Affairs dates the Ito Family Residence Annex to the early Showa era, between 1926 and 1945. Kashiwa City notes that no building records survive, but it is said to date from the first years of Showa.

It was registered as a building that contributes to the historic landscape of the country. The agency highlights modern touches throughout and calls it a well-appointed space for receiving guests. A detached two-storey reception wing opening onto a garden through big bay windows is not something the thatched farmhouse had.

The storehouse was built in the same early Showa years, and the main house and retirement house were remodelled then too. The Ito Family Residence Annex is one of several signs that the whole estate was reworked in that period.

What to Look For

The ground-floor bay windows are the defining feature of the Ito Family Residence Annex. Pushed out on two sides, they turn the room toward the outdoors. According to Kashiwa City, a garden with a pond lies in front of the annex, so the windows look straight onto it.

A household shrine is said to stand behind the annex. Pond garden in front, shrine behind: the guest wing sits between the two.

Next to the great thatched roof of the main house, the annex's tiled roof is modest in size, but its second storey gives it a height that stands out among the low farm buildings.

Visiting

The Ito Family Residence Annex stands inside a private estate where the owners live, and it is not open to the public. Because it sits behind the main house, little of it is likely to be visible from outside, and the property cannot be entered. Please do not try to look over walls or hedges.

Directions and visiting etiquette for the estate as a whole are on the Ito Family Residence page.

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Q&A

QWhat is the Ito Family Residence Annex?
AA two-storey guest wing joined to the main house by a covered passage. It has a tiled hip-and-gable roof and one formal zashiki room on each floor.
QWhen was the Ito Family Residence Annex built?
AThe Agency for Cultural Affairs dates it to the early Showa era, between 1926 and 1945. Kashiwa City notes that no records survive, but it is said to date from the first years of Showa.
QCan visitors go inside the Ito Family Residence Annex?
ANo. It is part of a private home and is not open to the public, and the property itself cannot be entered.
QWhat are the notable features of the Ito Family Residence Annex?
AThe large bay windows on the south and west sides of the ground floor and the formal alcove fittings on the north wall. The city notes a pond garden in front of the annex and a household shrine behind it.
QWhen did the Ito Family Residence Annex become a Registered Tangible Cultural Property?
AOn November 2, 2018, as one of six buildings on the estate registered together with the main house. Its registration number is 12-0273.

Basic Information

NameIto Family Residence Annex (伊藤家住宅離れ)
Location1383 Masuo 4-chome, Kashiwa, Chiba Prefecture
DesignationRegistered Tangible Cultural Property (Building), registration no. 12-0273, criterion: contributes to the historic landscape of the country
Year DesignatedRegistered 2018/11/2 (Heisei 30)
Quantity1 building
Dimensions2-storey timber building, tiled roof, building area 32 square metres
OwnerPrivate owner
Public AccessNot open to the public (private residence); no entry to the property

References

Agency for Cultural Affairs, Cultural Properties Database: Ito Family Residence Annex
https://kunishitei.bunka.go.jp/heritage/detail/101/00012499
Cultural Heritage Online: Ito Family Residence Annex
https://online.bunka.go.jp/heritages/detail/379684
Kashiwa City: Ito Family Residence (Buildings)
https://www.city.kashiwa.lg.jp/bunka/about_kashiwa/culture/rekishi/shiteibunkazai/torokuyukei/itoke.html

Last verified: 2026.09.25