This palace, located in the heart of the town, between the square Plaça Vella and and the street Sol de Vila, stands as a noble civil Gothic building. It belonged to the noble house of Santjoan, from which the name of this palace comes. The surname comes from Catalonia, and was extended throughout the Kingdom of Valencia after the Christian conquest. In many towns in the area, there had been noble houses of Santjoan between the thirteenth and fifteenth centuries.

In Cinctorres, the building has its origins in the 15^th century, although its current structure dates back to the 17^th century. It is a palace with an Aragon Gothic style, whose external part is very well preserved. It has two levels and its façade is made of stone with an emerging wooden eave. Moreover, it has a square tower with a hipped roof in whose apex appears the Maltese Cross. The interior retains the coats of arms in polychromy of the families who lived in the palace. In one room, we find another coat of arms belonging to Santjoan, an inhabitant of the population remembered for his fight against the French invaders. In another room, in an upper floor, and probably the most interesting part of the palace, all the flooring and walls are covered with zoo-morphic ceramic. With special value as well, we find the staircases that are made of carved wood. Currently, the palace is owned by the Provincial Council of Castellón, but they allow the City Council to use the palace with the purpose of hosting museums and cultural activities.

The wooden door of the 19^th century, has a top coat of arms in stone divided into five parts. Each part represents a heraldic symbol of Santjoan. The two of them which are higher have silver towers, in the center an eagle, representing the Santjoan family from Catalonia. Down, two wolves in one half and a tree and wolf in the opposite side.