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Châteaufort Auditorium

Type
CulturalYear
2019 - 2025Status
Completed
Project : Construction of a 200-seat auditorium
Architects : Lead Architect Leo Berellini - Associated Architect Roger Elbaz + DET + Cost Management
Client : Municipality of Châteaufort
Budget : €2M
The new multipurpose hall in Châteaufort, a commune in the Île-de-France region near Paris, France, replaces an old, dilapidated facility located in the heart of the village, which was insufficient for the commune’s dynamic cultural life. The project is situated at Domaine d’Ors, set back from the town center, in a protected natural site near the Mérantaise valley and behind the former castle outbuildings.

The project aims for discretion and landscape integration: the hall is embedded in the slope of the land, with a green roof extending the clearing. Two glass galleries connect it to the historic buildings. The architecture favors sobriety and heritage respect.

The structure rests on shallow foundations adapted to sandy terrain. The longitudinal walls are made of rammed earth, internally lined with hempcrete, providing both structural support, insulation, and environmental integration. The walls measure 25 m × 15 m, are 60 cm thick, and 5.85 m high. The construction site mobilized a specialized team to ensure material and workmanship quality.

All architectural elements have been optimized for thermal performance: slab and buried wall insulation, green roof with 20 cm of insulation, reversible heat pump, and double-flow ventilation with heat recovery. The use of local and ecological materials, such as earth and hempcrete, limits the carbon footprint and ensures optimal hygrometric comfort.
Main entrance of Châteaufort auditoriumPanoramic view of Châteaufort auditorium in its natural environmentAerial view of Châteaufort auditorium with green roofAerial view of Châteaufort cultural building at Domaine d'OrsGreen roof of Châteaufort auditorium integrated into landscapeDetail of green roof at Châteaufort auditoriumArchitectural perspective of Châteaufort auditoriumPerspective view of Châteaufort cultural facilityDetail of rammed earth wall at Châteaufort auditoriumInterior staircase of Châteaufort auditoriumExterior staircase and access to Châteaufort auditoriumDetail of green roof at Châteaufort auditoriumOverall view of Châteaufort auditorium completed in 2025Facade of Châteaufort auditorium in 2025Châteaufort auditorium in winter under snowExterior perspective of Châteaufort auditoriumOverall view of the cultural project in ChâteaufortContemporary architecture of the auditoriumMain facade of the cultural facilityNight view of the illuminated auditoriumLandscape integration of the cultural buildingEntrance hall and box office of the auditoriumFoyer and public circulation spacesAuditorium with seating and stageInterior view of the 200-seat hallStage and technical equipmentSeating and auditorium chairsStage lighting and performance ambianceDressing rooms and backstage artist spacesTechnical spaces and performance control roomBackstage and artist preparation areaArchitectural illustration of the cultural projectBar and relaxation space for the publicReception and public information areaVertical circulation and access to floorsAdministrative spaces of the auditoriumOffices and workspaces of the facilityStorage and technical storage spacesWorkshops and set preparationService spaces and technical maintenanceTechnical installations and audiovisual equipmentTechnical rooms and facility heating systemSite plan and urban integration in ChâteaufortGround floor plan of the auditorium
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