Tsukuda Family Sencha Tearoom Storehouse

An 1848 Storehouse Standing in Central Osaka

Tsukudake Senchashitsu Dozo (佃家煎茶室土蔵, also written Tsukuda-ke Sencha-shitsu Dozo), the earthen-walled storehouse of the Tsukuda family sencha tearoom in Otedori, Chuo Ward, Osaka, is a two-storey dozo built in 1848, the first year of the Kaei era, and it was entered on the national register of Tangible Cultural Properties on 26 March 2015.

It occupies 25 square metres. The Agency for Cultural Affairs records it as one building of dozo construction, two storeys, roofed with tiles; the official description specifies hongawara, the paired round-and-broad tiling used on temples and on buildings of some standing. It sits to the southwest of the main tearoom building on the same property.

A dozo is a warehouse built with a timber frame packed and rendered in thick clay, then finished in white plaster. The walls were made deep on purpose. Merchant Osaka burned repeatedly, and a household's ledgers, textiles, scrolls and lacquer went into the storehouse because the storehouse was the part of the property expected to survive. Small windows, heavy shutters, almost no openings at ground level: the type is defensive by design.

This one stopped being a warehouse in 1941, when the family remodelled it into a tearoom named Dokuraku (獨樂, written 独楽 in the national database). The conversion is the reason the building appears on the register under the name of a tearoom rather than a storehouse.

A Different Criterion from the Building Next Door

The storehouse carries registration number 27-0612 and entered the register in the eightieth round of listings, on the same day as the main tearoom building beside it. The two were assessed under different criteria, which is worth pausing over.

The main building was registered as a work serving as a standard of design, a judgement about architectural quality. The storehouse was registered under a different heading: kokudo no rekishiteki keikan ni kiyo shite iru mono, a work contributing to the historic landscape of the country. The Agency for Cultural Affairs closes its description with the sentence that explains the choice, calling it a scarce early-modern storehouse surviving in the Osaka city centre.

Scarcity is the point. Chuo Ward today is offices, arterial roads and apartment towers. Buildings from before the Meiji period are uncommon there, and freestanding Edo-period storehouses more so. Registration in this case recognises that the object holds a piece of the older townscape in place, rather than that it represents the finest example of its type.

Registration itself, introduced in 1996, works differently from designation as a National Treasure or Important Cultural Property. Owners keep considerable latitude to use and modify their buildings and notify the authorities before substantial alteration, in exchange for a national record and technical support. A structure that has already been converted once, as this one has, fits the registration system more comfortably than the designation system.

The recorded alteration history is short and specific: built 1848, remodelled in 1941 and again in 1945. What the 1945 work involved is not set out in the published record.

Inside Dokuraku: A Brick Floor and Chinese Sashes

The 1941 conversion left three features that the official description singles out, and each shows the same intention.

The ground floor was kept as doma, packed earth, and paved with sen, fired square tiles of the kind laid in Chinese buildings. Tatami would have been the obvious Japanese choice. The builders chose otherwise, so that a guest steps onto a hard, cool, faintly Chinese floor rather than onto matting.

The ceiling is an obiki tenjo, formed by the exposed heavy beams that carry the floor above, with boards laid across them. Nothing is concealed. In a storehouse this is simply how the structure works; retained in a tearoom, it reads as a deliberate roughness against which the objects on display can sit.

Two tall casement windows with paired glass leaves were opened in the west wall, and their glazing bars were shaped to a Chinese pattern. Glass in 1941 was a modern material, and the mullion design pulls it back toward the Chinese scholarly world that sencha takes as its reference. The west wall also means late light, which matters in a room otherwise short of openings.

The room functions as a bunbo, a scholar's studio. In sencha practice the studio is where the host arranges the implements of writing and the objects of connoisseurship, the brush, ink, inkstone and paper of the classical set, alongside strange stones, bronzes and small paintings, and where guests examine them while drinking. Tea for Dokuraku is not brewed in the room. It is prepared in a narrow room called Chodo in the main building and carried across, an arrangement the family still describes in those terms.

Visiting requires managing expectations. The storehouse is not open to the public, and the Issa-an school lists it together with the main building as its head practice hall, in use for lessons on fixed days each month. Entry comes through enrolling in the school or through occasional guided openings arranged by heritage organisations, which have covered both buildings together and are announced individually. Photography permissions are not published; follow the organiser on the day.

The address is Otedori 1-1, immediately west of Tanimachi-suji. Tanimachi Yonchome station on the Osaka Metro Tanimachi and Chuo lines is about five minutes away on foot, Temmabashi station on the Keihan Railway and Osaka Metro Tanimachi line about seven. The storehouse stands behind the main building and is not visible from the street, so a walk past the property shows the frontage only.