A historic school enclave in France is transformed into a bioclimatic benchmark: natural materials, passive ventilation and a design that minimises energy use give shape to a bright, comfortable space connected to its surroundings.
The refurbishment and extension of the Joséphine Baker Schools revolve around a bioclimatic approach that prioritises reducing energy demand and the rational use of resources. The project combines a renovated historic pavilion with new constructions designed to optimise thermal performance. The building envelope employs materials such as limestone, terracotta, and wood, not only for their heritage coherence but also for their ability to enhance thermal inertia and reduce losses. Natural ventilation is integrated as a central strategy, allowing spaces to be cooled without relying on intensive mechanical systems. The design of openings and latticework favours solar control, preventing overheating and making the most of natural lighting.
The building achieves an E3C2 level within the E+C- experiment, reflecting advanced energy performance and a significant reduction in life-cycle carbon footprint. Its primary energy consumption of 52.6 kWhep/m²·year is notably below usual standards, thanks to a balance of compactness, orientation, and passive strategies. The result is a school complex that improves user comfort, limits energy expenditure, and demonstrates how heritage refurbishment can be integrated with current efficiency criteria.
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