A flagship project in the ongoing renovation of public buildings by the French State in the Île-de-France region, the rehabilitation of the DRIEAT headquarters on Rue Miollis, in the heart of Paris’s 15th arrondissement, reflects the State’s objectives to rationalize its property portfolio while pursuing a bold environmental ambition, championed by the Ministry for Ecological Transition — under which the DRIEAT operates.
The project balances urban, functional, and performance-related goals. While the building’s original structure on Rue Miollis is preserved, its façade and relationship with the street are completely reimagined through an architecture that breaks away from the typical office aesthetic while affirming its public role. The transparent ground floor opens onto a central garden, helping to reconnect the site with the surrounding pedestrian areas. New extensions provide both functional solutions — offering connections and office space across floors — and a fresh identity. They highlight the use of bio-sourced materials and promote high-quality workspaces.
The site is also being reclaimed by nature. A reduction in parking spaces, expansion of planted surfaces, and requalification of existing outdoor areas are all part of the transformation into a cooling island in what is currently a highly mineralized urban environment.
Vegetation is a key feature — in the central courtyard, on rooftops, and along façades — and is complemented by the use of durable, high-quality materials: brick cladding on the Rue Miollis façade, wood for the extensions and window frames, among others.
Project Owner
Regional and Interdepartmental Directorate for Environment, Planning and Transport (DRIEAT)
Project Team
Architects : AIA Architectes, Atelier Philéas
Engineering & cost consulting : AIA Ingénierie
Environmental expertise : AIA Environnement
General Contractor : SPIE Batignolles
Timber construction : MATHIS
Commissioning : ENEOR
Facility Management : VIGILIS (Guinier Group 1823)
BIM : BIM in MOTION
Kitchen design : BEGC
Acoustics : Art Acoustique
Surface Area
20,173 m²
Cost
€36 million (excl. tax)
Timeline
Expected delivery : 2025