A Copper-Roofed Main Hall of 1929

The Gokokuji Main Hall (護國寺本堂) is a Nichiren Buddhist main hall of 1929 in Kamitanaka-machi, Shimonoseki City, Yamaguchi Prefecture, and was registered as a Registered Tangible Cultural Property (structure) on March 18, 2003 (Agency for Cultural Affairs).

The Agency records a single-storey timber building roofed in copper sheet, with a building area of 160 square metres; registration number 35-0042.

According to the temple, the founder Nichijo had built an earlier main hall 4 bays wide and 7 deep; as the congregation grew, the fifth chief priest, Nishijima Bunmei, replaced it. The present Gokokuji Main Hall, 6 bays wide and 7 deep, was finished in April 1929 at a cost of 15,000 yen (Gokokuji).

A Gable-Fronted Hall on a Stone Base

The Gokokuji Main Hall faces east from the foot of the hill behind the town (Agency for Cultural Affairs). It rises from a finely built stone base under an hip-and-gable roof, entered from the gable end (Tsumairi), over a deep plan. Fairly slender posts, Nageshi and Nuki tie beams give the walls a plain face, and the lower walls are clad in clapboard held by notched battens (sasarako-shitamiita).

Over the front entrance projects a karahafu, a cusped gable canopy, which the Agency singles out as the defining feature of the Gokokuji Main Hall.

Why It Was Registered

The Agency registered the Gokokuji Main Hall in 2003 for its contribution to the historic landscape, describing the hall, with its karahafu porch, as the focal point of the local townscape. It was the first of the temple’s four structures to be listed.

The conservation architect who supervised its later roof repairs sees a Nichiren temple in its open plan. Inside the entrance, an earthen floor 2 bays deep runs the full width of the Gokokuji Main Hall, and with the glass doors along both sides opened, the principal image can be worshipped from three sides of the precinct. He compares the arrangement to the open-air street preaching of Nichiren, the founder of the school (Gokokuji).

War Damage and Repairs at the Gokokuji Main Hall

Less than 20 years after it was finished, the Gokokuji Main Hall was badly damaged. On August 2, 1945, a sea mine fell in nearby Kifune-cho, and the blast stripped the entire roof covering, twisted the roof framing and wrecked every door and window around the hall (Gokokuji).

In 1953 a landslide on the hill behind, brought down by heavy rain, collapsed part of the hall, and in 1991 Typhoon 19 badly damaged the roof again. Each time, the temple records, the priest and parishioners saw to the repairs (Gokokuji).

The Heisei-era re-roofing did not dismantle the hall; the upper roof was jacked up so that the eaves and ridge could be repaired. A conservation architect from the Japanese Association for Conservation of Architectural Monuments supervised, and the work was led by the master carpenter Nakamura Isamu, who has repaired many listed buildings in Shimonoseki. A hip rafter was replaced with a single unjointed pine timber 6 metres long, all the rotten roof boarding was renewed, and about 70 percent of the timber was kept (Gokokuji).

What to Look For

From a distance, what you notice first is the tall copper-clad roof rising above the houses, and the karahafu over the entrance. According to the conservation architect, the gable-end roof was raised high and sheathed in copper so the temple would hold its own among the crowded houses without clashing with them, while the large karahafu canopy visually balances the height of the front (Gokokuji).

Closer to the Gokokuji Main Hall, look at the iron brackets that carry the karahafu and at the glass doors. The classic outline of round posts, hip-and-gable roof and karahafu is paired with early Showa modern details (Gokokuji).

Do not overlook the stone base, which the Agency describes as finely built and which lifts the hall a step above the ground.

Visiting

The Gokokuji Main Hall is in active use for services and temple events. The karahafu entrance and the row of glass doors along the sides read best from directly in front of the hall. No official information on entering the hall or on photography was found, so ask the temple if you would like to go inside. Directions to the precinct are on the Gokokuji Temple (Shimonoseki) page.

📍 Plan Your Visit to Yamaguchi
Find tours, activities & transport passes near Gokokuji Main Hall
Klook.com

Q&A

QWhen was the Gokokuji Main Hall built?
AIn 1929; the temple records its completion in April that year, under the fifth chief priest, Nishijima Bunmei (Agency for Cultural Affairs; Gokokuji).
QWhat is distinctive about the Gokokuji Main Hall?
AIt is a gable-fronted hall with a hip-and-gable roof on a stone base, and its karahafu entrance canopy is its defining feature (Agency for Cultural Affairs).
QWhat is inside the Gokokuji Main Hall?
AInside the entrance an earthen floor 2 bays deep runs the full width of the hall, and with the side glass doors opened, worshippers can face the principal image from three sides of the precinct (Gokokuji).
QWas the Gokokuji Main Hall damaged in the war?
AYes. On August 2, 1945, the blast of a nearby sea mine stripped the roof covering and wrecked the doors and windows, but the hall did not burn (Gokokuji).
QWhen was the Gokokuji Main Hall registered?
AOn March 18, 2003 (Agency for Cultural Affairs).

Basic Information

NameGokokuji Main Hall (護國寺本堂)
Location2-11-10 Kamitanaka-machi, Shimonoseki City, Yamaguchi Prefecture
DesignationRegistered Tangible Cultural Property (Structure)
Year DesignatedRegistered 2003/03/18 (Heisei 15)
Quantity1 building
DimensionsSingle-storey timber, copper-sheet roof, building area 160 m²
OwnerGokokuji Religious Corporation
Public AccessNo official information on interior access (main hall in active use)

References

Gokokuji Main Hall (Database of National Cultural Properties, Agency for Cultural Affairs)
https://kunishitei.bunka.go.jp/heritage/detail/101/00003312
Gokokuji Main Hall (Cultural Heritage Online, Japanese)
https://online.bunka.go.jp/heritages/detail/168622
History of Gokokuji (Gokokuji, Japanese)
https://krmt.biz/gokokuji/enkaku.html
Re-roofing of the Gokokuji Main Hall (Gokokuji, Japanese)
https://krmt.biz/gokokuji/kouji.html

Last verified: 2026.11.08