Built between 1643 and 1644 on the site of a demolished former chapel, the church of Saint-François d'Assise in Crésuz was destroyed by fire in the village in 1667, and immediately rebuilt with a nave featuring a barrel vault with openwork coping, cut into the braces. In 1900, the nave was lengthened on the side of the entrance with an ashlar porch, and the bell tower was moved. The original church was built by mason François Quidort and carpenter Jacques Ruffieux. The church at Crésuz served as a model for the chapel at Châtel-sur-Montsalvens.

High-quality Baroque furniture adorns the interior. On the high altar, dating from 1646 and saved from the fire, is a painting by Loys Vallélian, nephew of Dom Beaufrère (Bifrare), the prior of Broc, parish priest of Crésuz and founder of the church. It depicts Saint Francis of Assisi receiving the Child Jesus from the hands of the Virgin Mary, based on a work produced by Rubens in 1617 for the church of Saint-Antoined in Antwerp. Gottfried Locher, a famous Flemish painter living in Freiburg, completed the high altar with a painting of the Immaculate Conception in 1770. The two rococo side altars, dating from 1669 and 1670, are dedicated to Saint Anne and Saint Peter on the right. Fifteen medallions from the life of Christ are arranged around the divine Child. A stained glass window by Gaston Thévoz, placed in the choir in 1943, shows Joseph as a counterpart to a Madonna by Alphonse Dorthe.

The two bells date from 1668, the smaller Marguerite, the name of her godmother, cast by Jean Richenet, and the larger Françoise with the mysterious monogram IAM GM (GM perhaps standing for: goss mich / 'm'a coulée'). The organs by Zurich organ builder Theodor Kuhn were installed in 1919.

In collaboration with the commune of Crésuz