In 1854, a few months after founding the city, Alejo Peyret, the first municipal president, asked for permission to have a temple built, but only in 1876 the expectations of a community started having a shape. The walls were then visible thanks to support of government, donations and the hard work of "gringos".
Before the final construction was ready, the mass was celebrated in a humble house of the block where the departmental police has its headquarters. The present church was a two-slopped building with windows on each side.
On August 9, 1876, the parish was created in coincidence with the Fiat Lux library. Several modifications brought about the current building, made on an Italian Neo-Classical style. Its frontispiece bears the Latin inscription "Haec Domus Dei Et Porta Coeli", which means "This is the House of God and the Door to Heaven".