Designed by Anthony Béchu and Tom Sheehan, D² will be the first tower building in La Défense to have a steel exostructure: its structural framing will consist of a reinforced concrete core and an external steel grid. Built to a total height of 180 metres, D² Tower is designed to accommodate 3,700 people on 37 storeys. The first phase of the works began in June 2011 with deconstruction of the 10,600 m² of the Bureau Veritas building.
Bouygues Immobilier is carrying out the operation alongside property developer Sogeprom, on behalf of investor Sogecap, a life-insurance subsidiary of bank Société Générale.
With the Air² and D² buildings Bouygues Immobilier has signed for two of the seven projects forming the revitalisation scheme for La Défense. D² falls within the project for gradual connection of the La Défense ring road and the various levels of the Esplanade de La Défense (the main concourse): the tower block will be sited on a gently sloping pedestrian route, instead of the current void between the ring road and the concourse. This intelligent urban design makes D² a strong link between the Municipality of Courbevoie and La Défense.
Bouygues Immobilier places the D² project in the context of a High Environmental Quality (HQE®) initiative aiming for 6 ‘very-high-performance’ and 4 ‘high-performance’ targets. The objective is to achieve a level of energy consumption 30% lower than the most demanding HQE® performance level.
92400 Courbevoie, France
- Net Floor area: 54,000 m²
- Occupant capacity: 4,000 people
- Year of handover: 2014
- Height: 180 m, 37 storeys
- Development package: Developed jointly with Sogeprom