The oldest evidence of human settlements in the territory of Villa San Pietro, a small village in the metropolitan city of Cagliari, are attributable to the Nuragic age. It consists of the three giants’ tombs Su Cuccumeu, Perda ‘e Accuzzai and Su Lilloni, and the nuraghe Mereu, close to the municipality of Sarroch, still partly underground and around which there probably stood a village. Near the area, a few dozen meters away, there is a megalithic tomb which must have been connected to the nuraghe. Remains of Nuragic villages are present in the localities of Porcili Mannu and Sa Sucraxi.
Numerous finds, exhibited at the Musei Nazionali di Cagliari, come from the tomb of Perda ‘e Accuzzai. Dated between the 13th and 12th centuries BC, it consists of a long and narrow funerary room preceded by a short and narrow corridor; on the left of the entrance, in the wall thickness, a rectangular niche is created. The tomb chamber is semipogeic and made with large, partially worked stones and river pebbles. The tomb has yielded, in addition to various fragments of historical age, which attest to the reuse in the imperial Roman age, some vases, a long hard stone axe, numerous beads of glass paste necklace, a small bronze pendant and a paste rosette water green.
Traces of Roman times remain in the modern town centre.