A Parlor Built as a Seventieth-Birthday Gift

In 1931 the fourteenth head of the Takano family, Takano Nagatsune, added a detached parlor to the family grounds in Mizusawa to celebrate his father Nagayuki reaching the age of seventy. In Japan a seventieth birthday is called koki, and the building took that word as its name: the Kokian. A covered corridor links it to the former Takano residence next door, the boyhood home of the scholar Takano Choei.

The Kokian is a single-storey building of about 100 square metres, roofed in pantile and running east to west, with a small water-service room projecting at the northwest. It was entered onto the national register of Tangible Cultural Properties in August 2024, along with three other buildings on the same site.

Design and Garden Conceived as One

The register praises the Kokian as a model of its kind, and the reason becomes clear once you look at how freely it is planned. An entrance sits on the west, two rooms on the east, and the eastern guest room opens onto a low veranda, the nureen, that brings the garden close. Windows are cut beside the decorative alcove where a stricter design would keep the wall solid, letting light and greenery into the tokonoma zone.

The showpiece is the carved transom set between the rooms, worked with a hawk and a pine. A transom, or ranma, is the openwork panel above the sliding doors; here it turns a functional gap into a small stage for a bird of prey among pine boughs. Building and garden were designed together as a single composition, a leisured space made for a family to gather and mark an occasion.

Reading the Building on a Visit

Follow the covered corridor from the historic residence and you cross, in a few steps, from the world of an Edo scholar into an early-Showa retreat built purely for pleasure and celebration. Pause at the eastern guest room to study the hawk-and-pine transom, then step to the nureen and see how the garden was staged to be viewed from exactly that seat.

The compound is managed by the city of Oshu through its Samurai Residence Museum. Interiors are generally closed, with special openings during the Hidaka Himurusai fire festival and the Golden Week holidays that fall around Choei's birthday in early May. The garden and exterior can be appreciated from the grounds during those periods.

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Q&A

QWhat does the name Kokian mean?
AKoki is the Japanese term for a seventieth birthday. The parlor was built in 1931 to mark the seventieth birthday of Takano Nagayuki, so it was named the Kokian, roughly the Koki Retreat.
QWho built it and when?
AThe fourteenth head of the family, Takano Nagatsune, had it built in 1931 as a gift for his father.
QWhat is the most striking feature?
AThe carved transom between the rooms, depicting a hawk among pine, together with a plan that opens the parlor toward the garden through a low veranda.
QHow is it connected to the historic residence?
AA covered corridor joins the Kokian to the former Takano residence, the designated Historic Site where Takano Choei grew up.
QCan it be visited?
AThe interior is usually closed. Special openings are held during the local fire festival and the Golden Week period, arranged through the Oshu City Samurai Residence Museum.

Basic Information

NameFormer Takano Family Residence Kokian
LocationOhatake-koji, Mizusawa, Oshu City, Iwate Prefecture
CategoryRegistered Tangible Cultural Property (Structure); registered 15 August 2024
Registration No.03-0121
Quantity1 building
Date1931 (Showa 6)
StructureWooden, single storey, tile roof; building area approx. 100 m2
OwnerOshu City
AccessApprox. 10 min on foot from Mizusawa Station; interior generally closed

References

Agency for Cultural Affairs, National Cultural Properties Database
https://kunishitei.bunka.go.jp/heritage/detail/101/00014992
Cultural Heritage Online (Bunka Isan Online)
https://online.bunka.go.jp/heritages/detail/613010
Oshu City, Former Takano Choei Residence
https://www.city.oshu.iwate.jp/samurai/bukejutaku/1724.html

Last verified: 2026.07.06