Torre Telefónica Diagonal ZeroZero

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Height: Architectural 110 m / 361 ft
Height: Occupied 101.7 m / 333 ft
Height: To Tip 112.5 m / 369 ft
Floors Above Ground 25
Floors Below Ground 2
# of Elevators 6
Tower GFA 29,545 m² / 318,020 ft²
# of Parking Spaces 200


Official Name Torre Telefónica Diagonal ZeroZero
Other Names Zero Zero Tower, Diagonal ZeroZero Telefonica Tower
Structure Type Building
Status Completed
Country Spain
City Barcelona
Street Address & Map Avinguda Diagonal, 00
Postal Code 08019
Building Function office
Structural Material composite
  • Core: Reinforced Concrete
  • Columns: Steel
  • Floor Spanning: Reinforced Concrete
Proposed 2005
Construction Start 2008
Completion 2011

Companies Involved

Owner/Developer Consorci de la Zona Franca de Barcelona
Design Estudi Massip-Bosch Arquitectes
Structural Engineer
Design MC2 Estudio de Ingenieria
MEP Engineer
Design Master Ingenieria
Main Contractor FCC
Material Supplier
• Ceiling Armstrong World Industries

About Torre Telefónica Diagonal ZeroZero

Housing its main tenant, Telefónica España, the building is located by the sea at the origin of Barcelona’s main thoroughfare, Diagonal Avenue. The building takes the linearity of the street on the perimeter as the generator of its form creating a trapezoidal prism—sharp and stylized.

On the inner part of the façade, a series of very slender [16x16 cm (6x6 in) above the 13th floor, 16x32 cm (6x12.6 in) below] steel pillars 135 cm (53 in) apart carry the vertical loads and generate a screen to help diffuse light. An exterior rhomboidal lattice structure made of 24x68 cm (9.4x26.7 in) steel pipes supports all torsion and horizontal loads. The exterior lattice is not only a key structural element, but casts deep shadows on the façade thus reducing solar radiation. Vertical bands of white ceramic painted pattern cover 25% of the curtain wall. The style of the patterned bands was inspired by the salted spray that comes from the nearby sea. Visually the bands emphasize the slender form while further helping to control sunlight.

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