The Church of St. Lawrence is located in the historic center a short distance from the Castle and is in good condition. It originally had a single nave, but over time was expanded on the right side with the addition of a second nave.
The facade of the church is adorned with a small rose window and a two-light bell gable (on which the two original bells, dated 1320 and 1434 respectively, are still visible).
One curiosity concerns the small statue of the Virgin of Itria, possibly 16th-century, which is kept in the center of an 18th-century wooden retable. In the past, this statue is said to have “miraculously sweated” on several occasions: in 1651, in the presence of the then-warring marquis, and in 1652, the year when Sanluri, too, was hit by the plague epidemic that raged through the island. Even today, popular belief ascribes special powers to this simulacrum, including that of causing meteorological disasters (rain or thunderstorms) if removed from its seat. For this reason, on the occasion of the feast in honor of the Virgin of Itria, another statue, from a later period, is carried in procession.