Japan Castle Atlas日本のお城アトラス
My castles日本語
Stone walls and a white turret rising from the moat, October 2022. Most of Funai's turrets were rebuilt to their outward look after the war; only Hitojichi Yagura and Shumon Yagura survive from the Edo period.
SuicasmoCC BY-SA 4.0Wikimedia Commons

Oita · Ōita

Funai Castle

大分府内城

Ōita, Oita

CastleFlatland castle (hirajiro)Japan's 100 Fine Castles No. 92

What makes this castle distinctive

A seaside castle whose builder disliked the place name "Unloading" and renamed it "Raising Cargo".

Why?

The site, at the mouth of the Oita River where boats unloaded their cargo, was called Niorosu, "unloading." According to Oita City, the builder, Fukuhara Naotaka, disliked that name and called his castle Niage-jo, "raising cargo." The castle's district is still named Niage-machi, and it is now the heart of Oita, lined with the prefectural and city government offices.[1][4]

Three things not to miss

01
Turrets of the west enclosure including the low Shumon Yagura, with Tochaku Yagura of the east enclosure beyond, 2005. Shumon Yagura looks single-story from outside and is an Edo-period building rebuilt in 1859.ReggaemanCC BY-SA 3.0Wikimedia Commons

Shumon Yagura: one story outside, two inside

Where
The south side of the castle, a little west of the main gate (Otemon), on a corner of the west enclosure's wall.
What to look at
How low and single-storied it looks from across the moat, and the extra lower floor that appears when you see it from inside the grounds.
Why it's interesting
Because Funai was built on flat ground, its turrets (yagura) have no raised stone base; instead they have a lower floor tucked into the wall, the city explains, which is why the building changes height depending on where you stand. The present structure was rebuilt in 1859 after an earthquake knocked it down, and it is one of only two Edo-period buildings left at the castle.[1][6]
Can you see it?
Partly visibleThe exterior can be seen at any time. Whether the interior is ever opened is not confirmed.
02
Hitojichi Yagura and the keep base in the main enclosure, 2005. The turret is an Edo-period building rebuilt in 1861; the keep burned in the great fire of 1743 and was never rebuilt.ReggaemanCC BY-SA 3.0Wikimedia Commons

The empty keep base and Hitojichi Yagura

Where
The main enclosure (honmaru) in the northeast part of the castle.
What to look at
The stone platform that once carried a four-tiered keep, and the two-story Hitojichi Yagura standing beside it.
Why it's interesting
The four-tiered keep (tenshu) completed in 1602 burned in the great fire of 1743 and was never rebuilt. Hitojichi Yagura is an Edo-period turret, rebuilt in 1861. Below the west side of the keep base is a small shrine, Omiya, which by tradition honors a young woman who gave her life as a human sacrifice so that the troubled construction could be finished.[1][6]
Can you see it?
Partly visibleBoth can be seen from outside the castle. Whether you can climb onto the keep base, or enter the turret, is not confirmed.
03
The roofed corridor bridge linking the west enclosure and the Yamazato enclosure, 2005. It was rebuilt in wood in the 1990s based on old castle drawings.ReggaemanCC BY-SA 3.0Wikimedia Commons

The roofed corridor bridge over the moat

Where
Over the moat between the west enclosure (Nishinomaru) and the Yamazato enclosure.
What to look at
A wooden bridge enclosed by white walls and a roof, which you can walk through.
Why it's interesting
The Yamazato enclosure was where the lords enjoyed tea ceremony, Noh theater and moon viewing, and this covered bridge was the way across. It was rebuilt in wood in the 1990s, modeled on a corridor bridge at the main gate shown in old castle drawings.[1][4]
Can you see it?
Visible from outsideAccording to the city tourism association, the bridge can be visited from about 8:00 to 18:00.

At a glance for visitors

Nearest station
15 min walk from JR Oita Station
Climb
No climb
Time neededEditors' estimate
The city suggests 40–60 minutes using the walking map available on site.
Access
Open to visitors

The castle grounds (Oita Castle Park) are open at all times and free. The corridor bridge can be visited from about 8:00 to 18:00. The Japan 100 Castles stamp is at the foot of the main gate and available 24 hours a day.

Checked:

View on mapOpen in Google MapsFunai Castle (Oita City Cultural Properties Division, Japanese)Oita City Tourist Navi: Funai Castle site

The story of this castle

01
Historical record

Why build at a river mouth?

After the Otomo family, rulers of Bungo Province, lost their domain in 1593, Fukuhara Naotaka was ordered by Toyotomi Hideyoshi to build a new castle and in 1597 chose Niorosu, at the mouth of the Oita River. The site lay between the Oita and Sumiyoshi rivers, with the sea to the north. On almost perfectly flat ground, the castle was laid out with three main enclosures (kuruwa) and four rings of moats.[1][2]

02
Historical record

Built in two stages by two lords

Fukuhara gathered timber from as far as Tosa (today's Kochi Prefecture) and finished the main, second and third enclosures in 1599, though the keep was probably still incomplete, and he soon left. Takenaka Shigetoshi, who arrived in 1601, received Tokugawa Ieyasu's permission to add a four-tiered keep, turrets, gates and samurai residences, completing them in 1602. He is said to have brought in stonemasons who worked for Kato Kiyomasa, and carpenters and tile makers from Osaka and Fushimi.[1]

03
Historical record

A castle and a town built together

Once the castle was finished, Takenaka laid out a castle town on a grid and in 1608 added Kyodomari, a harbor for merchant ships. The city says the rough shape of downtown Oita dates from this time. After the Takenaka family, the castle passed to Hineno Yoshiaki, and from 1658 the Matsudaira (Ogyu) family ruled the Funai domain (han) until the end of the shogunate.[1][2][4]

04
Historical record

The keep lost in the fire of 1743

In 1743 a great fire destroyed the keep and many other castle buildings, and the keep was never rebuilt. Earthquakes in 1769 and 1854 damaged more structures; Shumon Yagura was rebuilt in 1859 and Hitojichi Yagura in 1861.[1]

05
Historical record

Two buildings that survived the war

Around the end of the Meiji era (early 1900s), the outermost and innermost moats were filled in; the moat that remains today once separated the second and third enclosures. The 1945 air raid burned the main gate and other buildings. Only Hitojichi Yagura and Shumon Yagura survive from the Edo period, and both are protected by Oita Prefecture as part of a Prefectural Historic Site.[1][6]

06
Historical record

A park, and ongoing research

The castle grounds were turned into Oita Castle Park in 1966, and the main gate was rebuilt to its outward appearance that year. The corridor bridge was rebuilt in wood in the 1990s. In fiscal 2017 Oita City adopted a basic plan for developing and using the park, and from 2020 to 2023 it published four volumes of documentary research aimed at clarifying what the castle once looked like.[1][3]

People of this castle

Timeline

  1. Fukuhara Naotaka begins building at Niorosu[1]

  2. Takenaka Shigetoshi completes the four-tiered keep and other buildings[1]

  3. The Matsudaira (Ogyu) family arrives and rules until the end of the shogunate[2][4]

  4. A great fire destroys the keep and many other buildings[1]

  5. The main gate and other buildings burn in an air raid[1]

  6. The site becomes a castle park and the main gate is rebuilt[1]

Buildings and remains

The keep today

Keep lost

A four-tiered keep was completed in 1602 but burned in 1743 and was never rebuilt. Its stone base remains.

The site today

The main, west and Yamazato enclosures form Oita Castle Park. The former third enclosure around it is now occupied by the Oita prefectural and city government offices, in the middle of downtown.

Main buildings

OriginalPart of an Oita Prefectural Historic Site

Hitojichi Yagura (turret)

Two-story Edo-period turret, rebuilt in 1861.[1][6]

OriginalPart of an Oita Prefectural Historic Site

Shumon Yagura (turret)

Edo-period turret rebuilt in 1859; it looks single-storied from outside and two-storied from inside.[1][6]

Exterior restored

Otemon (main gate, Tamon Yagura Gate)

Burned in 1945 and rebuilt in 1966.[1]

Rebuilt in wood

Roka-bashi (corridor bridge)

Links the west and Yamazato enclosures. Rebuilt in wood in the 1990s from old drawings.[1][4]

Exterior restored

Two-story turrets of the east and west enclosures

Turrets rebuilt to their outward appearance in the 1960s.[6]

Lost

Keep (tenshu)

Burned in 1743; only the base remains.[1]

Key facts

Type
Castle
Setting
Flatland castle (hirajiro)built on flat ground, defended by moatsEditorial article
Period
Early modern (1570s–1871)Editorial article
Keep (tenshu)
Keep lostthe castle had a keep, but it no longer stands (its stone base may remain)Editorial article
Built by
Fukuhara Naotaka, Takenaka ShigetoshiJapan Castle Foundation
Built
1597Japan Castle Foundation
Main lords
Matsudaira clan, Takenaka Jin'ya, Ogyū-Matsudaira clanJapan Castle Foundation
Abandoned
1872Wikipedia (ja)
Remains to see
Stone walls, Moats, Turrets or turret bases, Gates, Keep base (tenshudai), Baileys / enclosures (kuruwa)Editorial article
Designation
Oita Prefectural Historic Site (stone walls, earthen walls, moat, turrets) (1963); Oita City Historic Site (the remaining areas)Editorial article
Selection
Japan's 100 Fine Castles No. 92Japan Castle Foundation

Visiting

Access

Open to visitors

The castle grounds (Oita Castle Park) are open at all times and free. The corridor bridge can be visited from about 8:00 to 18:00. The Japan 100 Castles stamp is at the foot of the main gate and available 24 hours a day.

Address

4 Niage-machi, Oita, Oita Prefecture[4][1]

Checked: 2026-10-03

Nearest stations and how to get there

JR Oita StationJR Nippo Line, Kyudai Line, Hohi Line

about 15 min walk · No climb

About 15 minutes' walk north of the station. By bus, take a service bound for Hagiwara, Takajo or Tsurusaki from stop 6 at the Funai Chuo (north) exit, ride about 6 minutes to Oita Shiyakusho Godo Shimbunsha-mae, and walk 1 minute.[1][4]

Checked: 2026-10-03

By car / parking

About 20 minutes by car from Oita IC on the Higashi-Kyushu Expressway. There is no dedicated visitor parking; use nearby car parks.[1][4]

Checked: 2026-10-03
Grounds opening hours
Open at all times (corridor bridge about 8:00–18:00)[1][4]Checked: 2026-10-03
Time needed
The city suggests 40–60 minutes using the walking map available on site.
Steps, slopes and footing
The site is almost completely flat, and so is the walk from the station.[1]
Wheelchairs and strollers
Not confirmedChecked: 2026-10-03
Toilets and rest
Not confirmed
English signs / audio guide
The Oita City tourism website has an English version. English signage on site is not confirmed.[4]
Seasons
Cherry blossoms bloom from late March to early April.[1]
Photography
Not confirmed
Works, closures and restrictions
No construction or access restrictions were found in the sources checked.[1]Checked: 2026-10-03

Editors' guide

An editorial guide based on sources and confirmed information — not a first-hand visit report.

Who will enjoy it

Good for anyone who wants an easy castle within walking distance of Oita Station, and for those who like to take their time with stone walls, moats and turrets rather than a keep. The site is flat, so it suits visitors who prefer to avoid slopes.

What makes it interesting

The highlights are the two Edo-period survivors, Shumon Yagura and Hitojichi Yagura. Look at Shumon Yagura from both across the moat and inside the grounds to see its height change. Then compare them with the postwar rebuilt main gate and turrets to spot the difference between original and reconstruction.

Before you go

The keep burned in 1743 and was never rebuilt; only its base remains. The main gate and most turrets are postwar exterior reconstructions. The site sits right next to the prefectural and city offices, and there is no dedicated visitor parking.

Ways to enjoy it

Pick up the walking map on site and loop around the moat. Keep in mind the district name Niage-machi and the fact that the north side once faced the sea, and it becomes easier to picture a castle that doubled as a harbor. In spring the cherry trees along the moat add to the scene.

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Open questions

Sources

  1. 1
    府内城大分市教育委員会 文化財課municipalChecked:
  2. 2
    府内城の藩主について教えてください大分市municipalChecked:
  3. 3
    府内城文献調査報告書大分市教育委員会 文化財課municipalChecked:
  4. 4
    府内城跡おおいた市観光ナビ(大分市観光協会)tourismChecked:
  5. 5
    日本100名城 一覧公益財団法人日本城郭協会jokakuChecked:
  6. 6
    府内城(補助資料)Wikipedia日本語版otherChecked:
  7. 7
    List of Japan's 100 Fine Castles and the Next 100公益財団法人日本城郭協会jokakuChecked:
  8. 8
    Wikipedia「府内城」Wikipedia日本語版wikipediaChecked:
  9. 9
    Wikidata Q1142070WikidatawikidataChecked:

Listing status

  1. Candidate foundChecked
  2. Confirmed as a castle siteChecked
  3. Basic informationChecked
  4. In-depth articleChecked
  5. Photo rights checkedChecked
  6. Visit info checkedChecked

Castles nearby

Ōtomoshi1.5 km · Not yet confirmedUenoharu Castle1.9 km · Not yet confirmedTsurusaki Castle7.6 km · Not yet confirmedTakasakiyama Castle8.2 km · No keep recordedTsuruga Castle13.8 km · Not yet confirmedHiji Castle15.8 km · Keep lost

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