CB21 Tower


16 place de l’Iris
92400 Courbevoie





Surface area

68,000 m²


Harrison & Abramovitz, Saguez & Partners


CNP Assurances (joint investor)

Delivery date

1974 / 2008 /2021

Built in the 1970s, the CB21 Tower was one of the first skyscrapers to grace the European business district of Paris-La Défense. Occupying a prime location at the entrance to the district, the building enjoys strong visibility and close proximity to multiple transport systems. At a daring 188 metres tall, it is one of Paris’s quintessential modern landmarks, a timeless steel and glass architectural wonder that never ceases to reinvent its interior spaces and purposes.

A visionary tower

Conceived in the 1960s by US architects Harrison & Abramovitz, the tower was given a new look by Saguez & Partners design agency, first in 2008 then again in 2021, in order to offer a unique experience amid inspiring and resolutely elegant living areas.

An attentive host

The renovation of the CB21 Tower’s service offering in 2021 drew inspiration from the concept of a business hotel, combining elegance, nobility and modernity.
With its new design, the CB21 Tower is constantly reinventing itself to meet the aspirations of some and the requirements of others: a monumental reception hall worthy of a business hotel, a restaurant offering a wide array of atmospheres and flavours, fitness spaces, chat corners and places for sharing and meeting at any time of day.

Responding to current challenges

With regard to energy, the CB21 Tower has pursued high standards over the years in terms of its operation, energy expenditure and renovation quality.
In December 2022, the CB21 Tower was an award-winner in the “Bâtiment de la ligue Cube Paris-La Défense” category at the CUBE 2020 awards, in recognition of its environmental performance.
CB21 was recognised for reducing its energy consumption by 23% and CO2 emissions by over 17% in 2022.

This performance was primarily achieved through the following measures:

  • Remote real-time monitoring of consumption for over three years with the aid of an energy manager;
  • Energy performance contract since 2018;
  • Innovative fittings including, since 2021, energy recovery lifts used to power lighting in the various lobbies;
  • Low-carbon policy based on a long-term works plan and sourcing of 100% green electricity.

CB21: a true heaven of nature

An oasis of greenery amidst a mineral environment, CB21’s 1,500 m² grounds are a kaleidoscopic maze of twisting trails, planted areas and landscaping features each exuding its own distinct atmosphere. Nowhere else in Paris-La Défense can you stroll around, meet people and breathe freely in such inspiring surroundings.

Certifications & awards


  • French HQE Exploitation -Sustainable Management component: Exceptional – Sustainable Building component: Excellent
  • BREEAM Refurbishment – Good
  • WiredScore


  • 1st place in the 2022 CUBE 2020 awards

Supporting artistic creation

As a signatory of the “1 building, 1 piece of art” Charter, Covivio supports artistic creation with a view to making it accessible to as many people as possible. As such, we commissioned Hugo Servanin, a young graduate of EnsAD (École nationale supérieure des Arts Décoratifs), to create a work: inspired by Edouard Manet’s painting Le Déjeuner sur l’herbe, Hugo’s Objet 10 establishes a link between impressionism and artificial intelligence.

The CB21 tower in 3 words


Located in the very heart of Paris-La Défense, the CB21 Tower was one of the first skyscrapers to grace Europe’s largest purpose-built business district.


A series of renovations and refurbishments have enabled CB21 to continuously improve its energy performance.


The CB21 Tower houses a comprehensive, upscale service offering worthy of the most prestigious hotels.

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