The solution adopted in this building was conditioned both by the unique characteristics of the premises and by the special needs of its occupants. The problem of a plot with a lot of depth and little façade development was solved by means of a private alley to the south that separates the new volume from the pre-existing warehouses, to create along it a new façade of great development with adequate sunlight and ventilation. of the offices. In addition, as it was intended for a company dependent on ONCE, it was expected to be occupied by a large number of personnel with some kind of disability, so a program with as few levels as possible was sought. Making the most of the surface of the above ground floors that are set back to create terraces towards midday.