Administrative complex
Design–Build
Energy renovation
Project completed: 2024
Major refurbishment on an occupied site
Certifications
Biosourced label – Level 2
E+C− label – E3C1
Ecolabel A+
Areas
24,280 m² GFA
7,314 m² – 506 parking spaces
Client (Owner)
Préfecture du Haut-Rhin
Design–Build Team
Eiffage Construction Alsace, lead contractor
Architects
Carta – Reichen et Robert Associés (Buildings A, B, and C)
TOA Architectes Associés (Buildings D, I, J, K, and the Tower)
Engineering Consultants
Artelia and Serue Ingénierie
Space Planning Consultant
Archimage Agence
Electrical Installations
Eiffage Énergie Systèmes
Technical Operation and Maintenance
Eiffage Global Services
Credits
Photography: Frédéric Delangle
Energy renovation of the administrative complex and optimization of building occupancy
The architectural concept is based on reinforcing the historic buildings located along Fleischhauer Street and complementing them with a new construction designed as a system of connectors.
The new structure links the three existing buildings and establishes a central focus within the overall composition, notably through the extension of a building dedicated to the Prefecture’s public reception areas.
A new forecourt organizes and guides the public and users toward the various services of the complex.
The potential of each building is fully optimized, enabling the site to function as a true administrative campus.
