The church of Santa Llogaia de Bellpui is a demolished building. It has a single ship with a transept from which the deck has disappeared. Pilasters are resting on the walls that had to support the vault of reinforced cannon with toral arches. The semicircular apse is oriented to the east and opens to the nave through a presbytery arch. The apse is only on the north side and the double-sealed window can be seen. On the northern wall there is a narrow nave covered with a barrel vault and crowned by an apse that probably had a symmetrical one on the other side forming the transsept.
The structure of the church was modified, the nave was extended with a space covered by a vault of gun reinforced by a toral arc. In this sector the door of access to the temple is opened.
In the interior the walls are plastered but they let you see the device made of solid, unpolished, seamless ashlars arranged neatly with regular and regular threads. The vault was formed, for pieces without roughing, placed in a booklet. The extension was made with a very irregular retable device.
The walls and structure suggest that it is a building from the 11th century, or from the 12th century, but following the previous constructive tradition.
