Building 78: Catalyst for Green Reindustrialization in Rennes

In the heart of the Pôle d'Excellence Industrielle (PEI) in La Janais, Chartres-de-Bretagne, the Building 78 embodies the desire of Rennes Métropole and the Brittany Region to relaunch an innovative, decarbonized industry anchored in the local fabric. Inaugurated in April 2025 after an ambitious low-carbon rehabilitation, this vast site of 25,000 m2 is part of an economic and environmental transformation engine. A reinvented industrial heritage …