Fukuoka Prefectural Rush Industry Hall, Main Building

A 1936 Office Built for the Rush Trade

The Main Building of the Fukuoka Prefectural Rush Industry Hall (福岡県い業会館本館, Fukuoka-ken Igyō Kaikan Honkan, also written Igyo Kaikan Honkan) is a two-storey wooden office building completed in 1936 in Oki Town, Mizuma District, Fukuoka Prefecture, and entered on Japan's national register of Tangible Cultural Properties on 17 August 2020. Its occupants were the cooperative associations that ran the regional trade in igusa, the soft rush grown for tatami facing and for the dyed floor mats called hanagoza.

Oki Town sits on the Chikugo plain, the low farmland south of the Chikugo River, where rush was once cultivated on a scale few districts in Japan could match. Dyeing the stems and weaving them into patterned mats turned a field crop into something buyers abroad wanted. By the 1930s the trade needed a place to keep its ledgers, hold its meetings and receive those buyers, and the associations put up this building on a plot at Hatchōmuta.

Oki Town's cultural property page gives the completion date as 20 April 1936, credits the design to the prefectural technical school at Ukiha (a school with an architecture department since 1918, renamed Ukiha Technical High School after the war) and names Hirose Kōjirō as the builder. A provincial school drawing office rather than a city practice: the attribution suits a farmers' cooperative working with what lay within reach. The original drawings do not appear to have been published.

Stick Style, Then Art Deco

The registration citation issued by the Agency for Cultural Affairs describes the exterior as clapboard siding articulated with applied vertical members, and names the arrangement Stick Style. That idiom belongs to American domestic architecture of the later nineteenth century, in which boards laid over the wall surface trace the frame standing behind them. Finding it in a Fukuoka farming town in 1936 says something about how far builders' pattern books had already travelled.

The roof is hipped, and a porch pushes forward at the entrance to break up the face of the block. The walls carry a soft green paint that reads gently against the rice and rush fields around them.

Step inside and the ground floor held clerical offices, the upper floor meeting rooms. The Agency's citation singles out the treatment of the ceilings, which change from room to room instead of repeating one pattern throughout. Oki Town adds that both the ceiling designs and the newel post of the staircase show Art Deco influence, a taste that reached Japan in the 1920s and 1930s. Two vocabularies roughly forty years apart, then, inside one small building.

Registration was granted under the criterion for structures contributing to the historic landscape of the nation, as number 40-0174, in the 96th round. The Agency's text records that Western-style buildings are scarce within Oki Town, which is part of why this one was picked out. The same text describes the hall as the office of five rush-trade bodies; a 2023 regional broadcast report put the number of resident organisations at three, so the tenancy has evidently changed over time.

Visiting: An Office First

The hall is not a museum. It remains the working address of rush-trade organisations, and Oki Town asks anyone wanting to look around to telephone ahead. Opening is on weekdays, 9:00 to 17:00, with Saturdays, Sundays and public holidays closed. There is no admission charge, and no ticket desk either.

What repays the call is the second-floor meeting room, where hanagoza are kept and shown, among them examples of kakegawa weaving. Kakegawa alternates a wide gap in the warp with a narrow one, roughly three centimetres against one, giving the surface a ribbed rhythm you can read with a palm. Oki Town's page calls these mats a prefecturally recognised intangible cultural asset; other Fukuoka sources describe kakegawa weaving as a craft designated by the prefectural governor in 1980, so the exact wording of its status varies by source. Chikugo is the last region producing such mats in quantity.

The entrance area on the ground floor holds a hand loom and mats dyed in orange and pale blue. The room smells of cut rush.

Photography indoors is at the occupants' discretion, so ask on arrival. Hatchōmuta Station on the Nishitetsu Tenjin Ōmuta Line lies about 600 metres away, a walk of roughly ten minutes to the southwest; only local trains call there. One spelling quirk: the station is written 八丁牟田 and the postal address 八町牟田, the same place name with different second characters. The Former Night Duty Quarters, registered on the same day as number 40-0175, adjoins the west side of this building and deserves the same visit.