The small building most visitors walk past

Just inside the Niomon, set a little to the south, stands a pavilion small enough to be missed on a first visit. This is the Mizuya of Kangi-in, the roofed water station where worshippers rinse their hands and mouth before approaching the deity. It measures a single bay in each direction and covers only about 3.4 square meters, yet it repays a second glance.

The pavilion dates to the middle of the Meiji era, sometime between roughly 1883 and 1897. Its roof is a simple gable (kirizuma) laid with pantiles. The posts lean very slightly inward, a technique called uchikorobi that lends stability and a settled look, and a stone basin sits at the center for the ritual.

Modest in size, generous in detail

The Mizuya joined the national register on 2 May 2017 as one of eight structures around the Shoden hall recognized together. Its listing rests on the same ground as the others, a contribution to the historic landscape, and it fills out the picture of how the precinct was assembled over time.

What stands out is the mismatch between the building's footprint and its ornament. Bracket clusters (degumi) around the eaves carry a thick rainbow beam, and the beam itself, the large frog-leg struts (kaerumata), and the curved supporting members (shirin) all carry carving. For a shelter over a water basin, the effect is unusually rich and solid.

How to look at it

Approach as you would to purify yourself, then step back a pace. From a short distance the eaves reveal how much timber has been packed into so little span. The carpentry here echoes, at pocket scale, the ambition that runs through the whole temple.

Because it stands on the path everyone takes, the Mizuya is easy to reach and easy to photograph. Use it as intended first, and study it second.

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Q&A

QWhat is a mizuya for?
AIt shelters a water basin where visitors rinse their hands and mouth to purify themselves before praying. Many Japanese temples and shrines have one; the term temizuya is also used.
QWhy is such a small building a cultural property?
ARegistration recognizes structures that help form a historic setting. Despite its size, the Mizuya is carefully built and richly carved, and it belongs to the group of buildings that give the Menuma Shoden precinct its character.
QCan I use it?
AYes. It is a working purification station on the main approach, open to anyone visiting the temple.
QWhere exactly is it?
AIt stands just past the Niomon gate, slightly to the south of the central line, on the way toward the main hall.

Basic Information

NameMizuya (Purification Pavilion), Kangi-in (歓喜院水屋)
Location1511 Menuma, Kumagaya, Saitama Prefecture
DesignationRegistered Tangible Cultural Property (building)
Registration dateMay 2, 2017
Registration no.11-0167
Count1 structure
Periodmid-Meiji era (about 1883–1897)
StructureTimber pavilion, one bay by one bay, kirizuma (gabled) roof with pantiles; floor area 3.4 m²
OwnerKangi-in (religious corporation)
AccessAbout 30 min by bus from Kumagaya Station to Menuma Shoden-mae, then a short walk
VisitingThe precinct is open without charge; a viewing fee applies to the National Treasure Shoden hall

References

Agency for Cultural Affairs, National Cultural Properties Database — Mizuya (Purification Pavilion), Kangi-in
https://kunishitei.bunka.go.jp/bsys/maindetails/101/00011456
Kumagaya City Web Museum — Kangi-in Shoden-do
https://www.kumagaya-bunkazai.jp/museum/jousetu/syoudendou/about.htm
Kumagaya Chamber of Commerce, Tourism — Menuma Shoden-zan
https://kumagaya-syoukoukai.jp/%E8%A6%B3%E5%85%89%E6%83%85%E5%A0%B1/%E5%A6%BB%E6%B2%BC%E8%81%96%E5%A4%A9%E5%B1%B1/

Last verified: 2026.07.02