This project for the design and construction of a 12,000m2 offices building will be the first Zero CO2 office building in Milan. Four thousand square metres of photovoltaic panels on the roof produce enough renewable energy to completely satisfy the building’s cooling needs. The building is on the outskirts of the city and is designed to give a new identity to the Santander area. It is raised 13 metres above ground level with piazzas, pathways and green areas below. The building is compact and extends horizontally over most of the site with a series of courtyards that allow diversification of function and maximum use of natural light and ventilation. The single building has three distinct parts that house different functions as required by the brief. The facades are glazed with high technology selective glass and the treatment of the glass varies depending on the orientation of the façade. The building was commissioned by Advanced Real estate.