This prize is awarded to the project considered to be most significant in terms of environmental and energy quality. It underlines the decision of Bouygues Immobilier to make sustainable development a key part of its strategy.
Bouygues Immobilier's project was in competition with the Bank of America Tower in New York (Cook and Fox Architects), the Hearst Tower in New York (Foster and Partners), the High Rise Office Building in Qatar (Jean Nouvel) and the Maroc Telecom Tower in Rabat (Jean-Paul Viguier).
A building with a total floor area of 45,000 sq. metres, Mozart Tower is located in the future Seine Ouest business district of Issy-les-Moulineaux. The technical commission was particularly impressed by the building's excellent environmental standards and site integration.
Designed by US firm Arquitectonica, Mozart Tower fully satisfies demanding standards for environmental efficiency, project management and site integration.
In-depth studies were conducted on the orientation of the building, which has been designed to ensure the comfort of both occupants and local residents. The architecture, which places the emphasis on curves and reflections, lets light in at all levels, without overshadowing neighbouring buildings. At the same time, the building is positioned to act as a sound barrier, reducing noise from the nearby ring road.
Mozart Tower is a showcase in environmental technology. It achieved an excellent score in the HQE® Bâtiments Tertiaires certification process (high environmental quality in office buildings), with high or very high ratings for 12 criteria out of 14. For example, the roof includes 1,000 sq. metres of photovoltaic panels. Also, the North and South façades feature a new-generation double skin structure. Their characteristics differ depending on which way the façades face in order to maximise energy exchanges between the inside and outside.
The success of this project also involved understanding the requirements of the building's users. Bouygues Telecom, which will use this building as its head office, wanted to create an open environment to foster dialogue. As a result, Mozart Tower will include a vast reception hall as well as several meeting areas.
Scheduled for delivery in 2010, Mozart Tower was sold to Les Docks Lyonnais in April 2007.