It is a Gothic style building. influenced by the Portuguese Manueline style.
Its façades stand out. The main one. oriented to the west. has a wide staircase to access it. The structure has the shape of an altarpiece. with three very decorated bodies (following the plateresque style). the work of the master Cornielis de Holanda and Juan Noble. and dating from 1541. The door is in the central body and has a round arch framed by sculptures of St. Peter and St. Paul. In the upper part. one can contemplate a relief of the Dormition of the Blessed Virgin; and above it. there is a decoration of medallions in the form of scallop shells. as well as sculptures of saints. biblical and even historical characters; and. even higher. a rose window (responsible for the illumination of the interior space). symbolism of the sky. The façade is crowned by a Calvary and finally the typical cresting of the Portuguese Manueline style. Anecdotally. it is worth mentioning that among the figures of the saints. we can distinguish the busts of Christopher Columbus and Hernán Cortés. which are located on the sides of the rose window. It also has a façade on the south side of the building. with a round arch with a stone jamb decorated in the baroque style. and in it the transept of considerable dimensions stands out. It also has Manueline cresting crowning the walls and the apse of the temple. which has a large church window decorated following the Manueline style.
With regard to the interior. the church has a basilica floor plan with three naves (the central nave is predominantly Renaissance in style. while the other two. like the chapels. are influenced by the late Gothic style) and side chapels.
The roof of the naves. as well as of the side chapels is executed by means of ribbed vaults. among which it is worth mentioning the one carried out by Diego Gil in 1522.
In the Major Chapel one can contemplate an altarpiece of chestnut and walnut wood. of modern factory. since it can be dated between the end of the 19th century and the beginning of the 20th century. the work of a Galician sculptor who created a school of carving in Santiago de Compostela. Máximo Magariños. who also made the pulpit. as well as fourteen paintings with low reliefs that form the fourteen stations of the Via Crucis of the church.
Other chapels worth mentioning are the Chapel of Christ. which is also known as the Chapel of the Good Jesus. the Chapel of the Anguishes. in which there is an image of the Virgin of the Anguishes. the Chapel of the Purísima. with its wooden altarpiece (in which the image of the Virgin of Hope is venerated). known as the Virgin of the O. which is the patron saint of Pontevedra city) with five Tables dating from 1500 and the work of the Portuguese sculptor Atayde. the Chapel of the Trinity. with an altar similar to the chapel of Christ. but with symbolism and sculptures referring to the Father. Son and Holy Spirit (Holy Trinity). In it we can also see a carving of Our Lady with the Child. of small dimensions. seated on Noah's Ark. which is used as a tabernacle. It also laterally presents the polychrome wood images of the apostles Peter and Paul and the Altar of Our Lady of Sorrows. in which there is a baroque altarpiece in whose lower part and inside a glass urn a Dead Christ can be seen.