The gate that meets the road
The Iwase Family Residence Front Gate (岩瀬家住宅表門, Iwase-ke Jūtaku Omotemon) is a timber gate on the southern edge of the Iwase family compound in Oyamazaki, Tsuchiura, Ibaraki Prefecture, built in the closing years of the Edo period and listed as a Registered Tangible Cultural Property in 2010 (Heisei 22).
It is a kabukimon, the simplest of the formal gate types: two main posts carrying a horizontal tie beam across the top, with no gatehouse and no side rooms. The opening measures 2.9 meters. Behind each main post stands a stay post, and the gap between the pair is 2.7 meters, wide enough that the gate reads as a piece of building rather than a frame in a wall.
Ties and beams lock the four posts together. Short struts rise from the beams to carry the ridge, and a single layer of widely spaced Taruki rafters runs down each slope. Between the main posts hang a pair of outward-opening board doors.
Repairs were carried out in 1983 (Showa 58), when the roof took on the sheet copper it wears today.
Why the gate carries its own listing
The Iwase family held the post of nanushi, village headman, at Oyamazaki, and a gate was the part of an establishment that announced that rank to anyone on the road. That is the reason the Iwase Family Residence Front Gate was listed in its own right rather than treated as an appendage of the house.
The main house of the compound was registered first, in 2009 (Heisei 21). A further 7 structures joined it in 2010, the front gate among them, along with the middle gate, the east gate, the perimeter wall and three storehouses. The full group now stands at 8 Registered Tangible Cultural Property listings.
Gates are the first thing a family sells or scraps when a farm is modernised, so a nineteenth-century one still standing in its original position, still attached to the wall it was built with, is worth more as evidence than its modest size suggests.
What to look for
Look up into the underside of the roof of the Iwase Family Residence Front Gate. The sheathing above the rafters is sunoko-noji, a slatted decking of thin boards laid with gaps between them. Copper needs no such base; thatch does. The decking is left over from the original Kayabuki roof and was never taken out when the covering changed, so the gate carries the evidence of its own earlier form in plain sight.
The spacing of the rafters is the second thing to notice. They are set far apart in a single tier, which reads as deliberate economy rather than poverty. Nothing about the gate is carved or bracketed.
The doors repay a look as well. They are plain boards, hung in a pair and opening outward, sized to let a cart through rather than a palanquin. This was the entrance to a working farm that happened to be run by the village headman, and the Iwase Family Residence Front Gate keeps that balance of authority and use.
Seeing the Iwase Family Residence Front Gate
The compound is a private home and is closed to visitors. There is no admission, no opening time and no way inside. Of the 8 registered structures, however, the front gate is the one placed where the public can actually see it, standing directly on the road with the wall running east and west from its flanks.
Photographing the Iwase Family Residence Front Gate from the roadway is unobjectionable if you stay on the road, keep the lens off the grounds beyond the doors, and do not photograph residents. Do not push at the doors or step onto the approach.
The nearest station is Kandatsu on the JR Joban Line, about 3 kilometers to the east, which is around 40 minutes on foot. Local roads carry traffic and have almost no shoulder, so a taxi is the better choice. For news of any special opening, ask the Cultural Properties Section of the Tsuchiura City Board of Education (029-826-1111, extension 5120).
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Q&A
- Can the Iwase Family Residence Front Gate be seen from outside?
- Yes. It stands on the southern edge of the compound facing the public road, so the gate and the wall on either side are visible from the roadway. The grounds beyond are private and closed.
- What type of gate is the Iwase Family Residence Front Gate?
- It is a kabukimon, a gate of two main posts joined by a horizontal tie beam, backed by stay posts. The opening is 2.9 meters and the posts stand 2.7 meters apart front to back.
- When was the Iwase Family Residence Front Gate registered?
- In 2010, as a Registered Tangible Cultural Property. The main house of the same compound had been registered earlier, in 2009, and the whole group now numbers 8 structures.
- Was the Iwase Family Residence Front Gate always roofed in copper?
- No. It was originally thatched. The slatted board decking that supported the thatch survives above the rafters, and the copper sheeting dates from repairs in 1983.
- How do I reach the Iwase Family Residence Front Gate?
- Kandatsu Station on the JR Joban Line is roughly 3 kilometers away, about 40 minutes on foot. A taxi from the station is safer, as the approach roads are narrow.
Basic Information
| Name | Iwase Family Residence Front Gate |
|---|---|
| Location | 411-1 Michichi, Oyamazaki, Tsuchiura City, Ibaraki Prefecture |
| Designation | Registered Tangible Cultural Property (Structure) |
| Year Designated | Registered in 2010 (Heisei 22) |
| Quantity | 1 building |
| Dimensions | Frontage 2.9 meters, posts 2.7 meters apart |
| Owner | Private owner |
| Public Access | Not open to the public. Faces the road and is visible from outside |
References
- National Cultural Properties Database, Agency for Cultural Affairs: Iwase Family Residence Front Gate
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00008091
- Ibaraki Prefectural Board of Education, Cultural Properties of Ibaraki: Iwase Family Residence Main House and seven other buildings
- https://kyoiku.pref.ibaraki.jp/bunkazai/bunkazai-registered-6043/
- Tsuchiura City: Cultural property explanatory panels and Cultural Properties Section contact
- https://www.city.tsuchiura.lg.jp/kanko-bunka-sports/rekishi-bunkazai-maizobunkazai/page013918.html
Last verified: 2026.09.05