The existing building on the site of the former Winter Velodrome was completely stripped out with only the main structure being kept.

Boasting a capacity of 2,200 people, the office building 10 Grenelle contains an auditorium, a business centre, a restaurant and numerous conference rooms. Architectural firm B. architecture designed the facades adorned with adjustable perforated metal flaps. 

The reception area in the centre of the block provides a glass setting, inside which a wooden staircase designed by Ora ïto undulates upwards.

CALQ, representing the design team, brought its wealth of technical know-how to bear on the construction of this sensitive project, taking responsibility for coordination of studies and site management.