The remains of the Moorish castle in Frigiliana do not know the exact date of its construction, although some authors suggest it was built in the 9th century, coinciding with the revolt of Omar Ben Hafsun against the emir of Córdoba, whose military actions reached here, while others date it to the 11th century, coinciding with the construction of other similar enclosures by the Almoravids.
Part of the exterior layout is known, thanks to the preservation of some low walls and remains of walls, which would place the castle covering the entire crown of the Lízar hill. It is assumed that the defence of the castle would have had several towers and at least one access from the south side, towards the village, although it may also have had another gate on the north side, an easier access point.