A gate 910 millimetres wide
The Garden Gate of the Former Ishihara Family Residence (旧石原家住宅庭門, Kyū Ishihara-ke Jūtaku Niwamon) is a small timber gate of the early Shōwa period in Rokukocho, Okazaki, Aichi Prefecture, registered by the national government as a Registered Tangible Cultural Property on 25 July 2011.
Its opening measures 0.91 metres, or 910 millimetres. That is the width of one person. It stands at the exact midpoint of the eastern edge of the garden laid out south of the main house's reception room. The roof is gabled on a north-south ridge, thatched with cedar bark held down by bamboo. The Agency for Cultural Affairs records it under registration number 23-0340 and files it as a structure other than a building.
It is a very small thing. The garden reads differently with it there.
The newest of the three
The main house and the storehouse in the same compound both date from 1859. The Garden Gate of the Former Ishihara Family Residence is thought to have been built in the early Shōwa period, some seventy years later.
The Ishihara were rice merchants and money lenders who served as village headmen during the Edo period. Their house passed down through the generations into the twentieth century, and somewhere along the way a new gate was added at the garden edge. The compound was never frozen at the moment of its founding. Each generation adjusted it and added what it needed, and this gate is one of those additions.
Repairs were carried out in 1978, and again between 2015 and 2016, when the gate was restored alongside the main house.
Why a garden gate was registered
The registration criterion was contribution to the historic landscape. The Agency for Cultural Affairs commentary describes the gate as light in feeling and close to the sukiya taste, the restrained aesthetic developed for tea houses and refined domestic architecture. A structure under a metre wide earns a place in the national record not for its scale but for what it does within the composition of the compound.
Seen from the tatami rooms of the main house, the gate closes the view. It marks the eastern limit of the garden and hints that ordinary domestic space lies beyond. It was placed to indicate a boundary rather than to seal one. Numbered 23-0340 after the main house at 23-0338 and the storehouse at 23-0339, all three entered the register on the same day.
What to look at
Six-sided posts, adze-marked
Two main posts carry the gate, each cut to a hexagonal section. The surfaces are finished in naguri: worked with an adze and left with the tool marks showing rather than planed smooth. Refusing a flat finish and presenting the maker's stroke as pattern is a habit of sukiya building, and it sets the character of this small structure. The bracing posts are natural timber, barely worked at all.
Cedar bark and bamboo
The roof is laid in overlapping strips of cedar bark, weighted down with bamboo. Not tile, not shingle. Above it the rafters run in a single sparse tier, spaced widely enough that the bark itself is visible from beneath. No ceiling boards were added; the roofing material is the ceiling. Crouch a little and look up, and the grain of the bark runs across the whole underside.
The doors
The gate has a pair of sankarado, panelled doors built up from a frame with slender bars set into it. The type entered Japan with Zen temple architecture and, used at a garden gate, gives a light rather than a fortified impression. Open, the leaves look almost flat; closed, the bars throw a grid of shadow across the opening.
Visiting
The gate stands inside a private compound and is not normally open. Because it faces the garden, it cannot be seen from the street at all. Once each autumn, when registered properties across Aichi Prefecture open together for the Aichi Architecture Expo, the owner runs an event and visitors can enter the grounds. In 2025 this fell on 8 November, under the title Yorubun.
The date changes annually, and the owner's website is usually updated around September, so check there before planning an autumn visit. Some years include guided commentary by the owner or by architectural historians, offered by reservation with limited places. Whether the garden itself is accessible depends on how each open day is arranged, so follow the guidance given on arrival.
The nearest station is Higashi-Okazaki on the Meitetsu Nagoya Main Line, about 1.1 kilometres to the south, roughly a fifteen-minute walk. Okazaki Castle Park lies about one kilometre west. Photography is permitted or restricted at the owner's discretion on each open day. Please do not enter the property on any other day.
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Q&A
- Can you see the Garden Gate of the Former Ishihara Family Residence?
- Not usually. It faces an inner garden and is invisible from the road. The grounds open roughly once a year, in autumn, when the owner holds an event tied to the Aichi Architecture Expo; in 2025 that was 8 November. Check the owner's official website for the current date.
- When was the Garden Gate of the Former Ishihara Family Residence built?
- In the early Shōwa period, according to the Agency for Cultural Affairs, which gives the date as an estimate. The main house and storehouse on the same plot date from 1859, so the gate came about seventy years later. It was repaired in 1978.
- How big is the Ishihara garden gate, and what is it made of?
- The opening is 0.91 metres, or 910 millimetres, wide. It is timber throughout, with a cedar-bark roof held by bamboo, two hexagonal main posts finished with an adze, natural-timber bracing posts, and a pair of framed and barred doors.
- What heritage status does the Ishihara garden gate hold?
- It became a national Registered Tangible Cultural Property on 25 July 2011, under number 23-0340, classified as a structure other than a building. The main house and storehouse were registered the same day.
- How do you reach the Ishihara compound from the nearest station?
- Walk about 1.1 kilometres north from Higashi-Okazaki Station on the Meitetsu Nagoya Main Line, roughly fifteen minutes. The address is 70 Sugimoto, Rokukocho, Okazaki. Okazaki Castle Park is about one kilometre west.
Basic Information
| Name | Garden Gate of the Former Ishihara Family Residence |
|---|---|
| Location | 70 Sugimoto, Rokukocho, Okazaki City, Aichi Prefecture |
| Designation | Registered Tangible Cultural Property (structure) |
| Year Designated | Heisei 23 (2011) |
| Quantity | 1 structure |
| Dimensions | Opening 0.91 metres wide; timber, cedar-bark roof |
| Owner | Ishihara Ltd. |
| Public Access | Not normally open; admitted only on the special open day held each autumn |
References
- Agency for Cultural Affairs, National Cultural Properties Database: Kyu Ishihara-ke Jutaku Niwamon
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00008703
- Cultural Heritage Online: Kyu Ishihara-ke Jutaku Niwamon
- https://online.bunka.go.jp/heritages/detail/161314
- Okazaki City: Registered Structures, Former Ishihara Family Residence Main House, Storehouse and Garden Gate
- https://www.city.okazaki.lg.jp/bunka/torikumi_bunka/1004568/1004592/1004595/1004613.html
- Aichi Prefecture Cultural Property Navigator: Kyu Ishihara-ke Jutaku Niwamon
- https://jmapps.ne.jp/aichi_bunkazai/det.html?data_id=2152
- Official site of the owner: Registered Tangible Cultural Property, the Former Ishihara Residence
- https://www.orieotsuji.com/%E6%97%A7%E7%9F%B3%E5%8E%9F%E5%AE%B6%E4%BD%8F%E5%AE%85/
Last verified: 2026.08.30