Peramea was declared Cultural Heritage of National Interest in 1985 thanks to its historical patrimony. The urban structures of Peramea match the features of the so called enclosed village, a kind of settlement, compact and closed around itself, where the walls of the houses work as a protective external wall.
The medieval central part of Peramea has two main streets, running parallel, one of which still retains totally the façade of the porches, a testimony of its artisan past; even the names of houses still tell us about this organisation in guilds.
The origin of Peramea is directly linked to its castle, standing on the north-western part of the village on top of hill, already appearing in medieval documents with the name “Petra Media” in 901 possibly referring to the large rock where the building stood.
On the opposite direction and toward midday, there is a small hill outside the enclosure with a second fortification, Torre de Colomers. Its existence is associated to the boundary castle and was used for watching and vanguard.