Kanehara Family Residence Detached Room

Thirty-One Square Metres, Detailed Like a Tea Room

The Detached Room of the Kanehara Family Residence (金原家住宅離れ, Kanehara-ke Jūtaku Hanare) is a single-story wooden annexe of 31 square metres at Dodanbara in Shimominaga, Saijō-chō, Higashihiroshima City, Hiroshima Prefecture, built during the Taishō era (1912 to 1926) and entered on the national register of Tangible Cultural Properties on 13 August 2012.

It stands off the west side of the main house and is reached by a watari-rōka, a roofed connecting corridor that counts as part of the registered structure. The roof repeats the main house: irimoya, hipped and gabled, laid with sangawara pantiles.

The plan is short enough to describe in a sentence. A six-mat principal room fitted with a toko alcove and tana shelving sits alongside a secondary room, the tsugi-no-ma, and a privy occupies the south end. That is the whole building.

Why a House Needs a Building It Does Not Need

A hanare is a detached room, physically separate from the main house yet part of the same household. Japanese families have built them for various reasons across the centuries: quarters for a retired head of the family, a room for a son who has married, accommodation for guests who should not be walked through the family's daily rooms, and a place where the owner could pursue tea or calligraphy without the household organising itself around him.

The building type carries a particular design logic. Because a hanare is small, freestanding and not load-bearing for anyone else's life, it is where a wealthy owner could indulge. Restraint of scale licensed extravagance of detail. Much of the finest small-scale carpentry in Japanese domestic architecture is found in buildings of this kind rather than in the reception rooms of the main house.

The official assessment of this annexe uses the word shōsha, which describes something elegant and unpretentious at once, and pairs it with the observation that the effect is achieved despite modest size. Two details are singled out.

The first is a katōmado in the connecting corridor: a window whose head is drawn as a bell-shaped curve with a cusped peak. The form entered Japan with Zen Buddhism in the Kamakura period, appeared first in temple halls, was taken up by tea masters, and from there passed into residential architecture as a signal of cultivated taste. A corridor is a place people pass through. Putting a katōmado there means the owner expected the walk itself to be part of the experience.

The second is stranger and more revealing. The wall of the privy is pierced by a bamboo lattice window cut to a mokkō outline, a rounded four-lobed shape derived from a cross-section of a gourd and long familiar as a family crest motif. A designed window, in bamboo, in a lavatory. It is a reasonable measure of how seriously this small building was taken.

Reading the Registration, and Reaching the Area

All three registered buildings on this property went onto the list together on 13 August 2012, in the seventy-third round of registrations. The detached room holds registration number 34-0131, between the main house at 34-0130 and the gate at 34-0132. Each was accepted under the criterion for a work that serves as a model of design.

The register also records that the annexe was relocated in 1997, on the same terms as the main house. Groups of buildings moved together tend to preserve their spatial relationship, and the description of the annexe as standing off the west side of the main house and joined by a corridor indicates that the arrangement was reconstructed rather than improvised at the new site. The original location is not given in the record.

Practical information can be stated briefly, because there is little of it. The property is private. No opening hours, admission charge or visiting programme has been published, and the Agency for Cultural Affairs database lists neither an owner name nor a management body. Registration under this system imposes no duty to admit the public, and this annexe should be treated as what it is, part of somebody's home.

The address is 286-5 Dodanbara, Shimominaga, Saijō-chō, in the southern part of Higashihiroshima City, about four kilometres south of JR Saijō Station on the Sanyō Line. Anyone travelling in this district for other reasons will find the Minaga Reservoir embankment nearby, an early twentieth-century waterworks site open during daytime hours and known locally for cherry blossom and for a long wisteria trellis that draws visitors in early May.