The church of Sant Pere de Vallferosa (Saint Peter of Vallferosa) is next to the Tower of Vallferosa. It is a church with a single nave and lateral chapels of rectangular plant. On the northwestern part of the façade, the bell-tower is raised, with a square plant of two sections with trimmed edges and a stone balustrade. In each of the side of the bell-tower, a long rounded arch window opens. The access to the temple has an entablature with a split triangular pediment. In the centre of the pediment, there is a niche where there used to be an image of Saint Peter, currently lost.
Over the access gate there is a big rose window which illuminated the interior of the temple. The roof of the building has disappeared, so only the perimetric walls and the transverse arches that held the vault are preserved. One can glimpse other rooms of the church, such as the sacristy in South-East, or the stairs that lead to the choir on the South-West.