Although the ruins were listed in 2005, and the local council of Khust started working on a plan to renovate the castle with the involvement of the Western Ukrainian Restoration Plan Institute, the state has done nothing to implement the measures, according to zakarpattya.net.ua.
The castle in Khust, or Huszt in Hungarian, was built in 1090 by Ladislaus as a defense against the Cumans. It was destroyed during the Mongol invasion of Hungary, but rebuilt around 1318.
In 1458, King Matthias imprisoned his rebellious uncle Mihály Szilágyi in the castle. In 1514, local peasants participating in György Dózsa's Kuruc revolt, overtook the castle.
In 1594, the Tartars destroyed Khust, but could not take the castle.
The castle was besieged several times in the 17th century: by the army of György I Rákóczi in 1644, by the Polish in 1657 and by the Ottomans and Tartars in 1661-62.
The castle was taken over in another Kuruc revolt in 1703, and it was the last castle the Habsburgs occupied before crushing the rebellion in 1711.
The castle burned down in 1766, and a storm brought down its tower in 1798. It has been in ruins since.
Source: zakarpattya.net.ua / Wikipedia