The houses existing between the Carrer Nou  and the east wall suffered  extensive looting after the abandonment of the medieval town. In the central area, a large building with various uses was constructed at the beginning of the 18^th  century. The original building consisted of a large nave, seven metres  wide, with a series of central pillars that helped support the roof. Planimetry of the time explains that it was used as a stable. On the pavement, a change can still be appreciatedin the size of the cobblestones that mark the circulation spaces, separated from the different stalls.

A few decades later, the building changed function and was remodelled  to adapt it—as the most modern planimetry also specifies—as an ammunition warehouse. At the back, a large room was built, paved with tiles. A small quadrangular structure, probably intended for storing ammunition, was also added against it. To protect the building from explosions in case of bombardment, the perimeter walls were widened to give them up to a metre  of thickness.