Reuse of materials during restructuring

In the Paris La Défense business district, the Adria Tower, soon to be renamed Hopen, is undergoing major restructuring, including raising it by three storeys, replacing the façades and opening up the ground floor to the esplanade.

Artelia, which is responsible for the complete project management of the building’s dismantling and cleaning (interior and facade), has organised the selective sorting of waste materials and set up an on-site platform dedicated to re-use.


Built in the early 2000s, the Adria tower is currently being refurbished. Taking advantage of a change of tenant, its manager, Primonial REM, has decided to carry out an in-depth renovation of this office tower to bring it into line with contemporary expectations in terms of functionality, environment and urban integration. Raised by three storeys, the building will accommodate a range of living spaces (company restaurants, auditorium, cafés, etc.), some of which will be open to the general public (community, cultural and leisure activities), two large terraces, around twenty hanging gardens, etc. The project aims to achieve high-level certification (HQE, BREEAM, WELL, etc.).

As delegated project manager, Orfeo Développement called on Artelia to manage the stripping of the tower (interior and exterior stripping and cleaning). Our teams, which included specialists in deconstruction and the environment, implemented a circular economy approach that fully met the ecological and low-carbon ambitions of the project’s promoters. They organised selective waste sorting and created an on-site platform dedicated to reuse in the building’s car parks.

Around 470 units of sanitary furniture, more than 8,000 linear metres of interior partitions (solid and glazed), 1,760 doors (wood and steel) and almost 10,000 granite façade slabs were reconditioned, then offered for sale and reused on other sites. Considering the savings made on both cleaning and reuse, this operation avoided an estimated 1,895 tCO2eq of greenhouse gas emissions.