The abbey was rebuilt and enlarged in the seventeenth century (1693), after a fire destroyed the church, sacristy, chapter house, dormitory above and a large part of the cloister on July 25, 1510.

During the French Revolution, following the expulsion of the last abbess and nuns in October 1792, the abbey church was turned over to quarrymen.

In 1835, an "iron factory" was set up in the remaining buildings (abbey dwelling, refectory, dormitories and part of the cloister).

This small pavilion, rebuilt in 1699, as attested by the date engraved on the pediment of one of the dormer windows, was originally the residence of the priests in charge of the Divine Office for the nuns.

With the canalization of the Blavet, the installation of the factory and its subsequent transformation into a private residence, the pavilion became one of the entrances and was henceforth known as the porterie.

[3] At the end of the 17th century, Abbess Suzanne de Plœuc commissioned the construction of a new building, the logis abbatial.