Tour CB21
skyscraper in Paris La Défense
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.
History
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 was the second tallest building in Paris upon its completion. 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.
“Tour CB21” enters the record as skyscraper in Paris La Défense. Crown Archives preserves that source wording while asking what Tour, CB21 and skyscraper can confirm, complicate or overturn.
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“Tour CB21” is worth following because a concise public description often conceals a longer documentary argument. Here, Tour, CB21 and skyscraper provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Mar 26, 2026. The linked authority identifier is Q995371. Authority coordinates are 48.889, 2.250. 2 of 4 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1972 and 1974.
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This entry incorporates text from “Tour CB21” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.