The architectural style is Baroque.
Versailles Cathedral (French: Cathédrale Saint-Louis de Versailles) is a Roman Catholic church located in Versailles, France. It is a national monument. It was built as the parish church of Saint Louis before becoming the cathedral of the new diocese. The building is of the mid-18th century: the first stone was laid, by Louis XV, on 12 June 1743 and the church was consecrated on 24 August 1754.