• Offices
  • On going

In short

Planner: Paris La Défense
Investor / Developer : SCI White Tower / Linkcity
Architect: IF Architects
Project Management Assistant: LaSalle IM
Companies : Bouygues Construction

Area: 51,000 sq.m. of office
Height: 150 m
250 square feet of retail space open to the public
Public spaces: 2,000 sq.m. newly created (Zaha Hadid Square), and 5,500 sq.m. redeveloped

Location: Esplanade Nord, quartier Saisons (Courbevoie)
Delivery: 2020

The Alto Tower, built by SCI White Tower, is partly located on the site of the demolished Saisons office building. It is addressed on the new Place Zaha Hadid, a public space level with the Boulevard Circulaire, as well as on the Place des Saisons. It is accompanied by the creation of a business that takes place in part of the Anchor car park.

The aim of the Alto project is to develop a new tertiary operation in Paris La Défense, at the tip of the Seasons district and at the corner of the intersection of rue Louis Blanc and boulevard Circulaire, with an innovative and daring architectural and environmental approach.

Designed by IF Architects, with a height of 150 m with a flared shape and a surface area of 51,000 sq.m., it will feature a façade covered with glass scales, a unique feature that will complement the skyline of Paris La Défense. The project will benefit from the highest environmental certification standards: HQE Exceptional and BREEAM Excellent.

In the extension of the Alto Tower, at the level of the Boulevard Circulaire, a shop will be created by the operator
The tower car park will have 254 parking spaces for bicycles, encouraging employees and visitors to use soft modes of transport.

Total opening
With 2,000 sq.m. of landscaped, green and open parvis, the Alto base is a unique interface with the city. It can accommodate a nomadic catering offer and events, and is a daily focal point connecting employees. A complete living space that also houses the Alto business, accessible from the forecourt and the tower, and which can complete the catering offer or display the colours of an innovative flagship.

This architectural project is part of the requalification and development of generous urban spaces, including the creation of a new square and the redevelopment of the existing surroundings. The objectives for the development of the public spaces are as follows:

  • to open up the Seasons district;
  • to create a new Zaha Hadid square that links the redeveloped Boulevard Circulaire, the new Alto tower and the Place des Saisons (2000 sq.m. of public space gained from the road infrastructure);
  • create a link between the Place des Saisons and the new Zaha Hadid Square;
  • Redevelop the Louis Blanc alley by integrating soft mobility, VIP services and deliveries from the tower.

Alto, a service-oriented experience and a breathtaking view
Alto, these are services that rise to a crescendo. It is a fragmented and diversified catering offer, from the forecourt to the upper floors. It is also a sports and wellness area with a unique 180° view on the 23rd floor, as well as spaces to welcome, gather and entertain, combining ergonomics and attraction.
The ultimate experience of the Alto Tower: its two protected and green open terraces on the 36th and 37th floors. 340 sq.m. of outdoor space on two levels, with unlimited potential for use.

Key figures :

  • 51,000 sq.m. of modular and scalable surfaces
  • Opening and circulation on 150 m height
  • 37 floors to stimulate collective intelligence
  • a vertical village of 4,600 talents
  • 2 000 sq.m. of private forecourt
  • 2 terraces with R+36 and R+37
  • 5 diversified catering offers

A liberated architecture with curved lines, Alto escapes by creating a dialogue between form and space, and presents a silhouette of a daring appearance.


A liberated architecture with curved lines, Alto escapes by creating a dialogue between form and space, and presents a silhouette of a daring appearance.


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  • Alto
  • Alto
  • Alto