The building consists of for distinct parts : The Canyon is the architectural retranscription of a depression of the ground. Space created, a kind of artificial valley, makes it possible to place a great part of the program while profiting from a great contribution from light and a large opening on outside. The canyon contains the essence of the treasure of the library and the activity which is dependent for it. Surface of this one is used like surfaces available for the public. The canyon contains the mysterious activity specific to the library but it is also the support of the public activities.
The Interval corresponds to the space delimited by the ground of the canyon and suspended boxes. It is the heart of the library. It is all the vacuum ranging between the two structuring masses of the project. It is the continuity of the park in the building, without visual rupture. It is a place largely open on outside, it is a place of meetings and discovered library. It is an oversize amphitheatre which can accomodate all kinds of events. It is the place of vertical connections.
Boxes – A double tablecloth of boxes float above the vacuum. They contain primarily reading rooms and the Library of the Parliament. Their spacing allows a broad diffusion of the light in the central atrium. They enjoy a dominant situation on environnenment and make it possible to be isolated from it more or less.
The Peel – The whole of the building is sheathed of an external skin. The varition of its porosity and its opacity generates a mysterious and progressive discovery of the new Library.