Former Kato Shokai Building

Former Kato Shokai Building: A Small Corner Office With a Consulate's Past

On the corner where Hirokoji-dori reaches the Horikawa canal, at the north end of the Nayabashi bridge, a three-story building turns its entrance toward the intersection on a gently curved corner. This is the Former Kato Shokai Building, completed around 1931 by the merchant Kato Katsutaro as the head office of his trading firm, Kato Shokai. Its footprint covers only about 77 square meters, roughly 10 meters east to west and 7.6 meters north to south, yet the reinforced-concrete structure carries itself with more weight than those numbers suggest.

An older brick building belonging to the same company stood on this plot first. Kato had it taken down and replaced with an earthquake-resistant concrete office, a forward-looking decision for a Nagoya businessman at the start of the Showa era.

The ground floor is dressed to resemble cut stone. The two upper floors are faced with brick-pattern tile, and small ornaments sit at the tops of the pilasters near the roofline. These details carried the decorative tastes of the preceding Taisho period into an early-Showa commercial address.

From Siam Rice to a Wartime Consulate

Kato Katsutaro grew up in a village in what is now Inazawa, Aichi. He finished at the Nagoya Commercial School, spent about six years training in British-held Hong Kong, and returned to Japan in 1912 to build an import and export business. Rice and other goods from Siam, the country known today as Thailand, made up a substantial share of his trade.

That commercial bond carried unusual weight. In 1935 Kato was appointed honorary consul of Siam, and from that year until 1945 the Siam consular office operated inside this building. For a single small office block in provincial Japan, it was a remarkable double life: business premises by function, foreign mission by appointment.

The closing year of the war flattened much of central Nagoya. The Former Kato Shokai Building came through intact, one of the few prewar structures still standing near Nayabashi afterward. In the decades that followed, ownership changed hands and the building lost its face for a time behind advertising boards that wrapped the exterior. In 2000 the owner donated it to the city of Nagoya, and in April 2001 it was entered on the national register of Tangible Cultural Properties.

What "Registered" Means Here

It helps to be precise about the protection this building holds. Japan runs two parallel systems for built heritage. The older one designates National Treasures and Important Cultural Properties, reserved for works of the highest historical or artistic rank. The newer one, created by a 1996 revision to the Cultural Properties Protection Law, simply registers buildings that are more than fifty years old and contribute to the everyday landscape of the country.

The Former Kato Shokai Building belongs to the second category. Registration is a lighter, more flexible form of safeguarding, designed in part to keep modest twentieth-century structures in active use rather than freezing them. That suits this building well. Its value lies less in rarity of form than in the way a characterful little office has anchored a canal crossing that generations of Nagoya residents have crossed on their way through the city.

Reading the Building

Everything about the design responds to a tight, valuable corner. The southeast corner, the one that meets the intersection, is rounded, and the parapet above it climbs higher than the rest of the roofline so the eye registers that spot as the front. Approach from Hirokoji-dori and you count three floors.

Walk around to the western side, the side that faces the Horikawa, and a fourth level appears. The ground falls away toward the water, exposing the basement, so the canal elevation reads as four stories rather than three. This was not a visual trick for its own sake. A door at canal level let boats pull up against the embankment and move cargo straight in and out, a practical fitting for an importer who relied on the Horikawa for shipping.

A restoration between 2003 and 2005, designed by the city's building division together with Tohata Architects, brought the exterior and interior back to good order after the years under hoardings. The schedule aimed for an early-2005 reopening, timed ahead of the world exposition held in Aichi that spring.

The reopening completed a long loop. The three upper floors now hold Siam Garden, a Thai restaurant operated by the food company Yamamori, and the match was chosen on purpose: the company made the case that a building that once housed the Siam consulate was the only sensible setting for the venture. Downstairs, where boats once tied up, the basement is now the Horikawa Gallery, a compact exhibition on the history of the canal, the bridge, and the building itself.

Around the Building

The site stands within easy walking distance of Fushimi Station on the Tsurumai and Higashiyama subway lines, and close enough to Nagoya Station for a pleasant approach on foot along Hirokoji-dori. The street itself rewards a slow walk: a run of solid prewar bank buildings in stone and masonry still lines this stretch, giving a sense of how the financial district looked when Kato Shokai was new.

The Horikawa, the canal the building faces, was dug in the early seventeenth century to supply the new castle town and remained a working waterway into the modern period. A riverside path lets you take in the western elevation and the old boat door from the level of the water. Crossing the Nayabashi bridge gives the wider view that explains why Kato placed his entrance on the rounded corner.

To experience the interior, the simplest route is a meal at Siam Garden or a look into the Horikawa Gallery in the basement. The gallery is free and oriented toward visitors interested in the canal's history; the restaurant occupies the rooms that were once offices and the consular space, so a lunch or dinner doubles as a walk through the building.