Its Latin cross plan comprises a nave extended on the east by a semicircular apse, a large rosary chapel on the north and a bell tower on the south.

The interior of the apse is original for its two semicircular absidioles recessed into the walls, and the exterior for the width of the lesenes separating the arcatures.

A conjuratory, placed in front of the church, was used by the priest to ward off bad luck and in particular strong storms, frequent in the region, attributed to the numerous witches believed to live in the upper valley of the ribera d'Èvol, located upstream.

The church of Saint-André lies to the north of the village, which is administratively part of the French department of Pyrénées-Orientales and the commune of Olette.

Évol and its church of Saint-André can be reached via a departmental road about three kilometers long, from Route Nationale 116, which links the Roussillon plain to the Cerdagne region, slightly upstream from the village of Olette.

[12] In 1791, these lands -with the exception of the rectory garden- were sold for a very small sum, less than the estimate for major repairs to the clergy house dated 1781.

[14] By 1827, the commune of Évol had become part of Olette, but the clergy house kitchen continued to be used as a meeting room by the villagers, while the rest of the building remained occupied by priests.

[14] In the 1960s, Abbé Llopet published two monographs on the Garrotxes region, in which the church of Saint-André figured prominently.

[21] Saint-André church is a Romanesque building with a single nave (interior dimensions: 20 m long by 6 m wide)[22] following an east–west axis, extended to the east by a semicircular apse.

In addition to this typically Romanesque layout, a rectangular belfry tower is built on the south side of the church, close to the apse.

[23] The first floor is a small, rectangular, unlit room, 3 m high, which connects the bell tower to the nave of the church.

[14] Conjuratorys are small buildings open at the four cardinal points, which enabled the parish priest to ward off bad luck and witches, reputedly numerous in Évol and the upper valley of the ribera d'Èvol.

In particular, with the help of the tocsin from the nearby bell tower, it was able to ward off heavy rainfall, frequent in the region (Mediterranean episodes, thunderstorms), and attributed to the forces of Evil.

[29] The sanctuary preserves an important church treasure, many elements of which are protected as historic monuments, testifying to the continuation of a lively cult over the centuries.

[3] These include a tabernacle with painted wooden panels depicting the Virgin Mary, St. John, and a chalice topped with a communion host, dated 1553 and listed on May 11, 2001.

[36] A document from 1772 stipulates that members of the Rosary brotherhood had to take the statue out in procession every first Sunday of the month to obtain indulgences.

The procession then returned to the church, and the statue was placed on the altar of the Rosary chapel, where mass was celebrated.

[11] The Miracle of Notre-Dame d'Évol is a painting (oil on canvas) depicting an overturned boat in a stormy sea.

In the lower left-hand corner is a dedication explaining the motivation for the painting: in January 1647, a priest, Jean-François Pujol d'Olette, on a sea voyage from Rome to Marseille, almost drowned in a storm.

[37] Since the 20th century, Saint-André church has housed a Gothic altarpiece dedicated to Saint John the Baptist, complete with its predella.

The predella shows five scenes from the Passion of Christ: Judas' betrayal, Jesus before Pilate, the crucifixion, the descent from the cross, and Christ's burial, alternating with four coats of arms:[38] those of the De So family, Viscounts of Evol, present twice, and two others that are derived from them: those of Aragall and those of Çà Garriga associated with their de So husbands.

It was originally intended for the chapel of Saint-Jean-Baptiste de La Bastida, located in the lower part of Olette.

[38] This altarpiece, 3.50 m high and 2.95 m wide, is made up of painted panels surrounding a sculpture of the Virgin Mary placed in a niche at its center.

Commissioned by the Evol rosary brotherhood when it was created in 1577, it was completed in 1578, repainted and varnished in the 19th century, and classified as a historic monument on May 11, 2001.

Measuring 4 m high and 5.90 m wide, it is a triptych comprising a central section and two side panels, with a total of five statues, three bas-reliefs, and a painting on canvas.

[40] The Holy Thursday tabernacle is a rectangular lantern-shaped object, glazed on the top and three sides, made of painted, gilded and carved pinales.

In his opinion, this statue, created by a local craftsman, is of no artistic interest: the details are exaggerated, the colors are too bright and the proportions of the body are not respected, with hands that are too large.