Accor and Banque des Territoires are restoring La Citadelle Vauban on Belle-Île-en-Mer, with the historic fortress set to become France’s first Emblems Collection hotel in summer 2027.
Announced on 3 July, the partnership will bring hotel accommodation, dining, wellness facilities and a redesigned museum to the listed monument overlooking the entrance to Le Palais harbour in Brittany.
Accor will oversee the development and run the finished property. Banque des Territoires, part of the Caisse des Dépôts group, has come on board as a long-term equity investor via its Territoires d’Histoire(s) programme.
A 90-key hotel within the fortress
La Citadelle Vauban will include 57 rooms, 24 suites, six duplexes, two apartments and one private house. The accommodation will be spread through a defensive complex that has overlooked the island’s main port for nearly five centuries.
Plans also include two restaurants and a bar, seminar spaces and a wellness area covering nearly 2,000 square metres. The project is intended to preserve the citadel’s identity while introducing the comfort and service expected from a contemporary luxury hotel.
Belle-Île-en-Mer lies off the southern coast of Brittany, while the fortress occupies a position above boats entering and leaving Le Palais. Guests will stay within the monument, with accommodation distributed through its historic buildings.
Restoring a monument built in 1549
First constructed in 1549, La Citadelle Vauban was expanded in the 17th century by Sébastien Le Prestre de Vauban, the military engineer whose fortifications shaped defensive sites across France. The entire complex is classified as a historical monument.
The citadel had previously operated as a hotel but closed in 2020. Renovation work is now being directed by Valode & Pistre Architectes in association with Pierre-Antoine Gatier, Chief Architect of Historical Monuments.
Their task is to adapt the fortress for hotel and cultural use without erasing the fabric that gives the property its character. That involves integrating guest rooms, hospitality spaces and modern infrastructure into a site originally designed for military defence.
Maud Bailly, CEO of Sofitel Legend, Sofitel, MGallery & Emblems, said the project is meant to bring an important monument back into use while generating durable value for Belle-Île.
The museum will remain open to the public
A museum within La Citadelle Vauban will be completely redesigned by Studio Adrien Gardère. It will be accessible to hotel guests, island residents and other visitors, maintaining a public route into the fortress after the hotel opens.
The exhibitions will examine Belle-Île’s defensive and military history, supported by an outdoor trail through the site. Its collection includes paintings, plans, engravings and ship models, with the Fondation du patrimoine supporting the restoration of selected pieces.
“The best way to transmit heritage is to find a use for it. The project to transform La Citadelle Vauban into a hotel and museum is the best guarantee of its longevity,” Alexandre Giuglaris, CEO of the Fondation du patrimoine, said in the project announcement.
The citadel is the first project supported through a partnership between the Fondation du patrimoine and Banque des Territoires’ Territoires d’Histoire(s) programme, which is sponsored by Stéphane Bern.
More than 100 permanent jobs planned
When it opens, La Citadelle Vauban is forecast to be Belle-Île’s biggest private employer. Estimates put the figure at more than 100 permanent positions and almost 70 seasonal jobs across the hotel, restaurants, wellness facilities and museum.
The development also plans to work with island businesses, producers, artisans and suppliers. Its stated commitments cover staff training, protection of local ecosystems, a reduced environmental footprint and continued cultural access to the monument.
Caisse d’Épargne Bretagne is participating as a banking partner. Accor has not included a final investment figure in its official announcement, although France Bleu reported that the overall cost had been discussed within a range of €60 million to €100 million.
Emblems Collection’s first address in France
Emblems Collection is Accor’s luxury portfolio of distinctive hotels intended to retain strong individual identities while gaining access to the group’s booking, loyalty and commercial systems. The brand is targeting 60 properties worldwide by 2032.
La Citadelle Vauban will be Emblems Collection’s first property in France, occupying a historic fortress on the coast. The hotel and public museum are scheduled to open in summer 2027.
