The CB 21 project aims to endow La Défense with a new generation of towers respecting the environment and having a strong architectural identity while at the same time keeping the fundamentals which make Gan Tower one of the symbols of La Défense. At the end of this transformation, which will pair architectural originality and environmental innovation, La Défense will have a new tower with a unique location and visibility; a tower which will be both a testimony of La Défense's history and a reflection of customers' new expectations.
• Location: La Défense 1 • Developer: Groupe Foncière des Régions • Architect: Ateliers 234 – Jean Mas • Opening date: 2011 • Floor area: 100,000 m² (1.1 million sq. ft) • Height: 250 m (820 ft) • Floors: 49