12 Castles in Saitama worth your time
Japan Gems
Saitama Prefecture offers a selection of castles, including Kawagoe Castle and Oshi Castle. These sites provide a look into Japan's historical architecture.
Saitama has 12 castles on Japan Gems. Below are the 12 we can tell you the most about — each one written up in English from Japanese sources, with what to see and how to get there. See all castles in Saitama.
01
Kisai Castle
SAITAMA · CASTLE 騎西城
Explore Kisai Castle ruins for a glimpse into Japan's Sengoku period history.
What it is
- A Japanese castle in Kazo City, Saitama Prefecture.
- The remaining earthworks are a designated historic site.
- Excavations revealed a rare shoji-bori moat.
What to see
- A 3-meter high earthwork is the only remaining structure.
- A stone monument for 'Shishi Castle Ruins' stands here.
- The current castle-like building is a simulated keep.
- Many Seto ware and Mino ware tea bowls were found.
- Five Somin Shorai talismans were found in a well-like structure.
- Over 30 Sengoku period graves were found at the samurai residence site.
02
Yamaguchi Castle
SAITAMA · CASTLE 山口城
Explore Yamaguchi Castle ruins, a historic site with preserved earthworks and moats.
What it is
- A former castle, residence of the Yamaguchi clan for generations.
- Built by Yamaguchi Ietsugu of the Musashi Shichito Murayama Party.
- Designated a Saitama Prefecture historic site on October 1, 1962.
- Abandoned after the 1590 Odawara Campaign.
What to see
- A monument and signboard mark the castle ruins.
- Some earthworks and moats are preserved at the site.
- The castle was on the southern slope of the Sayama Hills.
- The Yanase River flows at the southern base of the site.
03
Warabi Castle
SAITAMA · CASTLE 蕨城
Explore the ruins of a historic flatland castle, once central to samurai power struggles.
What it is
- A flatland castle built by the Shibukawa clan.
- Founded during Japan's Nanboku-cho period.
- Designated a Saitama Prefecture historic site.
What to see
- The main keep site is now Warabi Castle Ruins Park.
- Original inner moat area was 12,200 square meters.
- Outer bailey covered about 21,650 square meters.
- Castle was surrounded by swamps and deep rice paddies.
Getting there
- 0.7 kilometers from Warabi Station.
- A 10-minute walk from the station.
04
Kawagoe Castle
SAITAMA · CASTLE 川越城
Explore Kawagoe Castle, a historic hirayamajiro with a preserved palace, significant in the Edo period.
What it is
- A Japanese castle in Kawagoe City, Saitama Prefecture.
- Built in 1457 by order of Uesugi Mochitomo.
- Also known as Hatsukari Castle and Kirigakure Castle.
- One of the Kanto Seven Famous Castles and Japan's Top 100 Castles.
What to see
- The Honmaru Goten, built in 1848, still exists.
- The Honmaru Goten is a designated cultural property.
- The Fujimi-yagura served as a substitute for a main keep.
- The castle site was designated a historic site in 1924.
- Official site
- www.city.kawagoe.saitama.jp
05
Oshi Castle
SAITAMA · CASTLE 忍城
Oshi Castle is a reconstructed 'floating castle' with a history of never being captured.
What it is
- A castle built by the Narita clan in the Muromachi period.
- Known as 'Floating Castle' or 'Turtle Castle'.
- Designated as a Saitama Prefecture historic site.
- Added to the Japan Heritage story in 2017.
What to see
- A reconstructed main keep at the main enclosure site.
- Some remaining original earthworks.
- Castle utilized extensive marshland and natural levees.
06
Iwatsuki Castle
SAITAMA · CASTLE 岩槻城
Explore Iwatsuki Castle, a historic site with a unique layout and scenic park.
What it is
- A Japanese castle in Saitama City.
- It was the administrative center of the Iwatsuki Domain.
- Also known as Floating Castle and White Crane Castle.
- A prefectural designated historic site.
What to see
- Castle ruins include the main keep, second, and third bailey.
- See the rare sōguruwa-gata castle layout.
- The castle park has a vermilion Yatsuhashi bridge.
07
Sugaya Yakata
SAITAMA · CASTLE 菅谷館
Explore Sugaya Yakata, a rare medieval castle ruin and National Historic Site, for a glimpse into Japan's past.
What it is
- A Japanese castle in Saitama Prefecture.
- Known as Sugaya-jo.
- Designated a National Historic Site in 1973.
- Residence of Hatakeyama Shigetada.
What to see
- Saitama Prefectural Ranzan Shiseki-no-Hakubutsukan is on site.
- A flatland castle on a low plateau.
- Main enclosure is rectangular.
- Earthworks and moats.
- A rare example of a medieval castle ruin.
08
Hachigata Castle
SAITAMA · CASTLE 鉢形城
Explore a Sengoku period castle ruin, a National Historic Site with a museum.
What it is
- A Japanese castle from the Sengoku period.
- First built by Nagao Kageharu.
- Expanded by Hojo Ujikuni.
- Designated a National Historic Site in 1932.
What to see
- Castle structure was a renkaku-shiki hirayamajiro.
- Highest point is 122 meters above sea level.
- Maintained as Hachigata Castle Park.
- Hachigata Castle History Museum is within the park.
09
Negoya Castle
SAITAMA · CASTLE 根古屋城
Explore well-preserved ruins of a 14th-century castle with unique earthwork enclosures.
What it is
- A Japanese castle, built by Yamaguchi Takatada.
- Construction occurred between 1390 and 1428.
- Originally named Ryugajo or Shorakujijo.
- A Saitama Prefecture designated historic site.
What to see
- Well-preserved castle ruins.
- Double earthwork enclosures.
- Site was 150m north-south and 75m east-west.
- Castle consisted of 8 to 9 enclosures.
10
Kawagoekan
SAITAMA · CASTLE 河越館
Explore Kawagoekan, a medieval castle ruin and National Historic Site, for a glimpse into Japan's past.
What it is
- A Japanese castle site.
- A medieval residence ruin.
- Designated a National Historic Site.
- Residence of the Kawagoe clan.
What to see
- Earthworks and moats.
- Historic Site Park opened in 2009.
Getting there
- 15-minute walk from Kasumigaseki Station.
11
Takasaka Yakata
SAITAMA · CASTLE 高坂館
Explore a 14th-century castle ruin, now a temple, with historical earthen mounds and graves.
What it is
- A Japanese castle, also known as Takasaka Castle.
- Founded in the 14th century by Takasaka Gyobutaifu.
- Now Kosai-ji Temple, a Saitama Prefecture important ruin.
What to see
- Earthen mounds and moats around Kosai-ji Temple.
- Graves of the Kagatsume clan on the earthen mound.
12
Matsuyama Castle
SAITAMA · CASTLE 松山城 (武蔵国)
Explore a historic hilltop castle, a strategic point in feudal Japan's conflicts.
What it is
- A hirayamajiro (hilltop castle) built in 1399.
- Also known as Bushu Matsuyama Castle.
- A designated national historic site.
What to see
- Site of a strategic castle in Musashi Province.
- Official site
- www.matsuyamajo.jp