Built in 1907 by the Spiga family as a private chapel, it has a rectangular floor plan with a frescoed barrel vault. The altar houses the simulacrum of St. Valerian.
The oratory houses the wooden statue of St. Lawrence, purchased in 1850, which is carried in procession during the August festivals on a golden chariot, also housed in the oratory.
The San Lorenzo chariot was commissioned by Valeriano Spiga in 1903 and made in the carpentry workshop of the F.lli Cau firm on Via Sonnino in Cagliari to a design by the architect. Efisio Spiga.
The work is similar in construction and technique to others made in the nineteenth century on seventeenth-century models in the image of the royalty’s gilded carriages used in gala parades and on official occasions of the highest representation.
