Although this building has a non-continuous front façade on Avinguda Diagonal, at the back it aligns with the axis that is initiated by the nearby Torre Agbar. The building has two distinct parts: ten lower floors, irregular and rhomboid-shaped, which are aligned to Avinguda Diagonal and become the basement of the building; and seven upper floors, trapezoidal-shaped, which break the alignment. These floors retreat into the interior of the structure, creating a slimmer volume that crowns the building. The amount is set on 5665 m2 above ground and 7300 below ground. Unique in its composition, the earth-tone façade consists of front-hole, horizontal architraves, which are supported by vertical structures. The panels are precast reinforced concrete with fiberglass and coloured mass of GRC (Glass Reinforced Concrete).