The new bioclimatic office building of Alpha Bank located at Athinon Avenue consists of four underground levels of a total area of 17,400 m2 and the main building structure of a total area of 4,220 m2 arranged in two longitudinal, parallel three-story wings that intercommunicate at every level by means of transversal footbridges. The steel roof of the building bears a skylight, constructed lengthwise. The uniform roofing system creates an atrium in the heart of the building that enables the penetration of air and natural light. The atrium accommodates all public activities and traffic. In the adjacency of the main building, at the ground floor level, a corner bank branch in combination with a free standing glazing system marks the presence of the building from Athinon Avenue.