Church of Notre Dame de Gernelle

Notre-Dame church must date back to the Middle Ages, probably to the 12th century based on the shape of the bays in the south wall of the nave and the walled arcades on the north side (remains of a demolished or unbuilt aisle). The western portal appears to have been rebuilt in the 19th century. Notre-Dame church, located in the centre of the village, has an elongated plan with a single nave. It is preceded by an entrance vestibule topped by a timber-framed bell tower. The choir, aligned with the nave, comprises a straight bay and a three-sided apse, with a sacristy adjoining the north side.

The building is made of limestone rubble with a Dom-le-Mesnil ashlar chain. The interior walls are plastered, and the floor is made of blue and violet slate tiles. The church has only one level: the north wall of the nave has walled arcades with rectangular bays, while the south wall has narrow lancet bays. The choir is illuminated by a large bay with a filling.

The interior is covered by a false barrel vault. The nave and choir have long-sloped roofs, the apse a polygonal hipped roof, the sacristy a shed roof and the bell tower a polygonal spire.