Her projects included the renovation of the interior of Església de Sant Martí Vell, the parochial church of Sant Martí Vell in 2012–2013. The site has a long history, encompassing a Roman settlement in the second century AD, a medieval enclosure, a Romanic Temple in the 11th–12th century, and the construction of a late-Gothic-style edifice in the late 1500s. The work done included the excavation of archaeological remains of a Roman settlement and the refinishing of a sepulchral tomb, as well as the restoration of existing elements and the provision of new ones. Peretti also supported the management of the sixteenth-century historical documents of the town, the conservation of the photographic archive of Oriol Maspons and the conservation of the Roman city of Empúries.