Triangle perceives itself first of all in the metropolitan scale of the city of Paris. Its singular shape, that of an irregular pyramid on trapezoid bassis, contrasts with the unique perception which would offer a classic tower in simple extrusion. This volumetry confers on Triangle of the multiple and dynamic perceptions, which vary according to the point of observation. She thus becomes a " actress " of the Parisian silhouette and will bring instead of the Door of Versailles and to the site of the Exhibition center a big visibility since the whole metropolis. 

On the scale of the Place of the Door of Versailles, the insertion of a symbolic and recognizable building along the avenue Ernest Renan, at the heart of the Exhibition center and set back from the place and the neighbouring buildings will play an important role in the reorganization of flows and in the perception of urban space while reactivating the historic axis connecting the 15th district of Paris and the bordering municipalities of Issy-les-Moulineaux and Vanves. 

The precise calibration of its volumetry favors its insertion and aims at limiting the impact of the building on its environment. Its triangular shape has two functions; it can of generous viewing angles of the sky for the local residents and it reduces, like a sundial, the projection of shadows on the neighbouring buildings. 

Triangle is thought as a city piece that we would have made revolve and placed vertically. For the visitor, the project is perceived at first since the square of the Door of Versailles where converges the network of the public transportation. The base of the building is opened to all, since the square and along the avenue Ernest Renan who will find the appearance of a livened up Parisian street, with its businesses and services. The Northeast axis facing the center of honorable Paris two oblique elevators which will connect the atrium since the base up to a panoramic restaurant at the top of the tower. This visit can then go on in the highest levels of Triangle, up to the belvedere where from we shall discover exceptional views on the whole metropolis. 

Triangle will so become one of the major places of Paris. It will recreate an urban strong and livened up space Place of the Door of Versailles, will offer a point of reference since which we can perceive the urban panorama and will appear as a remarkable silhouette in the system of axes and monuments of the city, like a signal right in the heart of the Exhibition center. " - Herzog and of Meuron

Client: VIPARIS