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Tour CB21

Buildings and structures completed in 1974Harrison & Abramovitz buildingsLa DéfenseOffice buildings completed in 1974Skyscraper office buildings in France
TourGan
TourGan

Tour CB21, formerly Tour Gan, is an office skyscraper located in La Défense, the high-rise business district situated west of Paris, France. It was designed by celebrated American architect Max Abramovitz. Built from 1972 to 1974, the tower is 179 m (587 ft) tall at roof height. However, it reaches 187 m (614 ft) once including the antenna located on the roof. It is the fourth-tallest skyscraper in La Défense after Tour First, Tour Total and Tour Areva. Its ground shape is in the form of a Greek cross. In 1972, during construction, a protest campaign opposed the building of Tour Gan. Protesters demanded a reduction in height. However, the tower was completed at the planned height. Today, the main tenants are Suez Environnement and AIG France. The structure is owned by Fonciere des Regions.

Excerpt from the Wikipedia article Tour CB21 (License: CC BY-SA 3.0, Authors, Images).

Tour CB21
Place de l'Iris, Arrondissement of Nanterre

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Latitude Longitude
N 48.888888888889 ° E 2.2498055555556 °
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Tour CB21

Place de l'Iris 16
92400 Arrondissement of Nanterre, Quartier Gambetta
Ile-de-France, France
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TourGan
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Tour Generali

Tour Generali (English: Generali Tower) was a skyscraper planned for construction in the business quarter of La Défense in Courbevoie (Hauts-de-Seine, France). (Note that Generali also owns another prominent high-rise building on Avenue Louise in Brussels, which is also known locally as the "Tour Generali".) The project was officially initiated on 18 October 2006 and is being built for Italian insurance company Assicurazioni Generali. Part of the modernisation of La Défense, the project is being constructed by Vinci on the old site of the Iris building, which was completed in 1983. Tour Generali would have an estimated height of 319 meters (1100 feet) from ground level, at a total cost estimate of 500 million euros. The building would have had 400m² of PV cells, 800m² of solar panels and 18 axial wind turbines on site to produce energy. Other environmental initiatives being taken in the project include mixed-mode ventilation with night purging, use of thermal mass, district heating/cooling and multi-service chilled beams (e.g. ventilation, cooling heating and lighting). This building was to be constructed as a "green" building, and would have include a wind turbines in its spire, solar panels, and other environmentally friendly elements. The main entrance of the tower would have been at the 6th level of the tower along the elevated esplanade/promenade, which rises 18 metres above ground level. The Tour Generali had undergone a redesign and was shortened to 265m, which meant it would have longer held the title of the tallest building in the European Union. The project was cancelled in 2011.