Tour T1

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Height: Architectural 185 m / 607 ft
Height: To Tip 185 m / 607 ft
Floors Above Ground 36
Floors Below Ground 4
# of Elevators 18
Tower GFA 70,000 m² / 753,474 ft²
# of Parking Spaces 766


Official Name Tour T1
Other Names Tour GDF-Suez
Structure Type Building
Status Completed
Country France
City Courbevoie
Street Address & Map Boulevard de la Mission Marchand - La Defense
Postal Code 92400
Building Function office
Structural Material concrete
Completion 2008
Rankings Click arrows to view the next taller/shorter buildings
Regional Ranking #85 Tallest in Europe
National Ranking #5 Tallest in France
City Ranking #2 Tallest in Courbevoie

Companies Involved

Developer Gerald D Hines Interests
Design Valode & Pistre Architects
Structural Engineer
Design Terrell Group
Main Contractor GFC + Bouygues
Other Consultant
Façade Permasteelisa Group
• Vertical Transportation Lerch Bates Europe
• Wind Centre Scientifique et Technique du Bâtiment
Material Supplier
• Paint/Coating AkzoNobel

About Tour T1

T1 Tower was conceived as a giant glass plate, folded to the south along its vertical axis and cut by a gradual arc on its north face. This dynamic shape, whose appearance changes depending on the viewer’s vantage point, assures its insertion within the complex urban context and provides a new landmark for the La Défense skyline. The tower’s horseshoe-shaped geometry provides for great panoramic platforms at each level. Its design incorporates high quality working conditions, functional efficiency, and flexible office configurations.

The tower is oriented north–south with its giant curved glass plate tracking the sun’s path through the sky. A silk-screened shading pattern on the tower’s curtain wall glazing enhances the towers thermal performance. The high level of insulation and reduced exposure of the façades reduces heat loss in the winter. Great attention was given to the building’s relationship with the environment. The architectural and technical systems provide for the comfort of the tower populace, and assure high health and safety performance. The tower is fitted with climate-controlled heating and lighting systems.

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