It is a late 16th century building with subsequent restorations in 2002, 2006 and 2015. It is built on a single nave, 25 metres long, 7 metres wide and 11 metres high.
Inside, there are three chapels on the Gospel side with works of some value, such as an oil painting of San Francisco de Paula attributed to the Rivera school of incalculable value and a 17th century polychrome wooden Immaculate Conception. And on the outside, on the Epistle side, there are six buttresses with access under a round arch, framed with two tondos representing St. Peter and St. John and crowned by the Jesuit emblem of J.H.S.
It is the most interesting and impressive building in the town of Iznate.