The origins of the castle are unknown but during the mid 1500's it was the held by the Ohira, as a satellite fortification for the Kira clan in nearby Setagaya Castle. In 1590 during the siege of Odawara, the Kira fled to Chiba and Ohira fled to Todoroki Castle. Okusawa Castle was abandoned at this time. The Kuhonbutsu Joshinji Temple was founded in 1678 and it preserved, or made use of, the embankments from the former castle so they can still be seen today.
Incredible fall colors here. I recommend visiting during that season at the end of November or early December. Most of the embankments are in areas that you are not technically supposed to enter.
|English Name||Okusawa Castle|
|Castle Condition||Ruins only|
|Designations||Local Historic Site|
|Historical Period||Pre Edo Period|
|Access||Jiyugaoka Sta (Tokyu Toyoko Line), 13 min walk; Kuhonbutsu Sta (Oimachi Line), 5 min walk|
|Visitor Information||Joshinji Temple|
|Time Required||20 mins|
|Coordinates||35° 36' 29.56" N, 139° 39' 40.61" E|
|Added to Jcastle||2018|
|Admin Year Visited||2017|
|Admin Visits||December 8, 2017|