MVRDV presents its new building “the Pushed Slab” in Paris. It is an energy efficient office building which will be built in the 13th arrondissement of Paris. The 19.000 m2 building will be one of the first low energy buildings realised in France with low energy consumption. The complex is located between two completely different urban grids, the dense city fabric of blocks in the north and the loose urban fabric in the south with its clear defined and straightforward infrastructure. Because of these two differences the building has become as if “two faced” - a calm side in dialogue with the urban fabric of the north side of Paris and a more dynamic side facing south, rectangular to the boulevard. The project combines proven techniques and the whole building is highly flexible when it comes to space division. The accumulation of these proven reliable techniques results in energy consumption of 49 kWh per m2 per year. The whole volume which mirrors the shape of the land is wrapped in a skin of wood while the windows form a rhythmic ribbon on each floor. The terraces and the balconies will be furnished with many trees planted in large pots.