The Barcelona practice of Carles Enrich undertook the restoration of one of the two faces of the defense tower at the castle of Merola, the only remnants of the 13th-century construction in Puig-reig, a municipality of the comarca of Berguedà.

The 2016 detachment of part of the tower’s top expedited plans to consolidate and reinforce the medieval ruins. On one hand, the long-gone foundation was redone with lime concrete. On the other hand, a timber structure of 18 profiles with 14 cm square sections is a reinterpretation of the original stone tower, which had a rectangular, 5 x 3.6 m floor plan and a height of 14.8 m, and it is made to serve anew as a lookout thanks to a staircase that reaches three circulation levels. The union is executed by means of wooden profiles anchored to the stone canvas at 14 points.