The original fortification was built by the Tsukui clan during the Kamakura Period, but the castle remnants we see today all date from the Sengoku Period. In the latter half the the 1500's, it was an important castle in the Hojo castle network. Tsukui Castle was near the border of the Takeda lands and looked out over the Sagami River. It also served as a smoke signal tower to send signals to other points in the Hojo defensive network. Defense of Tsukui Castle was managed by the Naito clan, one of the chief retainers of the Hojo. The castle was defeated by Honda Tadakatsu and Hiraiwa Chikayoshi in Hideyoshi's campaign against the Hojo in 1590. After the fall of the Hojo, Tsukui Castle was decommissioned. In the Edo Period a jin'ya, or government administrative office, was established at the foot of the mountain just next to the current Park Center.
You have to look hard to find castle remnants here but the park is well signposted which helps your enjoyment of the site. Stop by the park center before visiting the castle ruins to find maps, brochures, a model and other information about the castle. There are some trails to the east of the Takauchiba marked as "steep", proceed with caution. They are indeed very steep and there are no additional castle remnants to see. Much of the steep part is going up/down holding a chain or rope.
|English Name||Tsukui Castle|
|Year Founded||15th C.|
|Castle Condition||Ruins only|
|Designations||Top 100 Mountaintop Castles|
|Historical Period||Pre Edo Period|
|Features||trenches, stone walls|
|Access||Hashimoto Sta. (JR or Keio Line); bus to Lake Tsukui Visitor Center, 20 min walk|
|Visitor Information||The Park Center is open 8:30-17:15 daily except for the New Year's holidays|
|Time Required||120 mins|
|Location||Sagamihara, Kanagawa Prefecture|
|Coordinates||35° 34' 58.80" N, 139° 16' 43.68" E|
|Added to Jcastle||2013|
|Admin Year Visited||2013|
|Admin Visits||Nov. 30, 2013|