It is a very simple Romanesque-style hermitage, with a single nave covered with a barrel vault, with a semicircular apse, which has a double-flow window. The nave is very short, which suggests that it was shortened during the restoration,
We must highlight the arrangement of the belfry bell tower, perpendicular to the façade, for its originality. Next to the chapel is the hermit's house.
In the 15th century it was known as San Mateo del Bosque and was property of the Priory of Sant Miquel del Fai.
The chapel has been documented since the year 993. In a pastoral visit from 1498 it is recorded that it is in a ruinous state but it had to be restored shortly after since in the 16th century it had worship again.
In the 16th century restoration, the nave had to be cut off, now quite short in relation to the apse, and with a very simple façade.
On Saint Matthew's Day, its traditional pilgrimage is celebrated.
From the hermitage you can enjoy good views of the Maresme, an area frequented by several hiking and mountain biking routes.