The Pla de l’Estany Regional Archive (ACPE) is located in the cloister of the Sant Esteve monastery in Banyoles. It became operational in 2007 thanks to the agreement signed between the Catalan Goverment (Generalitat de Catalunya), the Pla de l’Estany Regional Council and the Banyoles City Council. It has the dual function of Pla de l’Estany Regional Archive and Banyoles Municipal Archive.

It has three types of spaces: the one intended for the public, with a consultation room and a multipurpose room; the work room, for archivists, and the documentation custody room, which corresponds to two deposits with a capacity for 5,500 linear meters, one for photographic collections and the other for large-format documents —parchments and plans.

It houses a rich variety of documentary heritage that illustrates the society, economy and history of the region. We highlight the collection of the Banyoles Town Hall (1244-2017); that of the company José Gimferrer SA, manufacturer of jute bags (1914-1989); that of the farmhouse of Can Mariscot de Camós (1214-1941), and the collection of photographs by Lluís Martí (1880-2012). The collection of Carles Fontserè (1910-2016), poster artist, photographer, illustrator, set designer and writer, deserves a separate chapter. A recognized poster artist during the Civil War, Fontserè had to go into exile first in Paris and then in New York, but ended up returning to Catalonia, specifically in Porqueres, where he lived the last 34 years of his life.