Église Saint-Martin de Castelnau-d'Estrétefonds, church located in Haute-Garonne, in France

The Église Saint-Martin de Castelnau-d'Estrétefonds has a pale plastered facade beside a red-brick tower that rises into a pointed brick spire, with gabled dormers, louvered arched openings and a white clock face. Its single nave, 40 by 16 metres, is covered by rib vaults and ends in a pentagonal choir whose ceiling Arsène Robert painted; five stained-glass windows made by Louis-Victor Gesta in 1865 show Christ, Saint Anthony, Saint Joseph, Saint Martin and Saint Germaine.

The present church was built on land bought by the parish on 17 February 1551, then planted with vines. The north chapel collapsed in 1646 and the facade in 1771; Gabriel Bréfeil led a partial reconstruction in the mid-19th century. In the cemetery, remains of the earlier Saint-Martin church are still visible: a Romanesque nave, a 15th-century apse and a 16th-century wall bell tower, with written traces back to 961.

The church is dedicated to Saint Martin, a figure known in France for kindness and generosity toward those in need. This connection runs through the building's identity and links the local community to a long religious tradition.

The building sits along a quiet street in the village and is easily reached on foot while walking through the area. The surroundings are peaceful, often with small gardens or trees, making it feel integrated into the rural landscape.

The brick bell tower with its pointed spire stands against the south side of the first nave bay, and its ground floor holds the baptismal chapel. The stairway to the bells is reached through a separate polygonal turret. The tower's spire is brick, not stone, and the entrance below the pale facade has a carved panel and projecting brick cornice rather than a carved wooden door.