A sustainable transformation in the heart of Paris The Keller Pavilion, a project by nunc architectes, sustainable architectural practices within the bustling Beaugrenelle district of Paris. Originally part of a 1960s property ensemble, the pavilion is now a key component of a comprehensive redevelopment initiative. This project not only preserves the original concrete structure but enhances it with a façade clad in pre-greyed wood, embodying a commitment to environmental responsibility. The pavilion's design prioritizes the use of reused and bio-sourced materials, aligning with La Poste Immobilier's ambitious environmental goals. The building envelope incorporates local geo-sourced materials, while interior elements such as guardrails and wood carpentry have been thoughtfully reused. A bioclimatic approach underpins the design, with natural ventilation systems ensuring comfort without reliance on air conditioning. Thermal insulation is achieved through straw bales and wood fiber, while mud bricks form the interior counter partitions. A green roof mitigates the urban heat island effect and manages rainwater flow, contributing to the pavilion's passive construction standards. Flexibility is a core feature, with reconfigurable spaces designed to accommodate future uses, including an institution of higher learning set to open in 2026.

## Design Highlights

Reuse of existing concrete structure with pre-greyed wood cladding Integration of bio-sourced and geo-sourced materials Bioclimatic systems for natural ventilation Thermal insulation using straw bales and wood fiber Green roof to reduce heat island effect Flexible interior spaces with reconfigurable partitions

## Key Facts