Clever Approaches to Building Above the Street: Trinity, Puteaux, France
Session: Track F: Best Tall Building Award By Function: Office, Part 2
Managing Director Offices & Mixed-use Projects Europe, Unibail-Rodamco-Westfield
Architect & CEO, Cro&Co Architecture
Trinity is a living tower, a tower to be lived, and designed to be in interaction with its surroundings. Its off-center core introduces a new architecture in La Défense. Usually enclosed, the core is opened up and becomes one of the main elements of the project. Animated by the occupants, activity is revealed in the façade, promoting interaction between inside and outside: movement of the panoramic elevators, upper-level gardens, suspended meeting rooms, kinetic facades; all elements that give a dynamic to the scheme. From inside, the large openings provide exceptional views of La Défense. The tower offers shared, flexible spaces, , including a rooftop with a wellness center, a business center and auditorium, three double-height floors at the top, and a sequence of terraces and meeting rooms (convertible into kitchens) suspended beneath every fourth floor, and directly connected to lift landings. Natural light streams into the landings thanks to a panoramic shaft, and the full-depth floor slabs benefitting from a triple orientation. This openness gives comfort of use and orientation within the building.
By incorporating high environmental standards, Trinity Tower has received both Haute Qualité Environnementale (HQE) Exceptionnel and BREEAM Excellent certifications. It is the first office tower in France to obtain a faultless HQE certification with a total of 14 targets reaching the High Performing level (Très Performant). As it is built above a roadway, it enables the reuse of the existing sealed soil. In addition, the tower’s construction of a tower on this site contributes to furthering urban densification rather than urban sprawl.