The site of Trevejo was active during the Reconquest and very remarcable in the second half of the 17th century. The importante rests of the site dates from 15th century although structures, foundations and part of its original base were used in later structures.

The fortress is very deteriorated and consists of a tower, a irregular walled enclosure and tow rows of exterior walls in a lower level. The castle is realized with fine-carving ashlars, some of them of huge size.

The exterior gate opens to the west and has a monolithic architrave with the inscription: "YZO ESTA HOBRA FELIPE QTO ANO 1706"