The space is on the ground floor of an apartment block where one of the last coal bunkers in Barcelona was located.The inside height, approximately 2.5 meters under street level, allowed the construction of a metal and wood mezzanine at access level, taking advantage of the natural slope of the street. The mezzanine does not cover the space entirely but leaves an open midsection which gives natural light to the lower level and creates a double-level space. The workspace distribution is the same on both levels: a row of offices along the wall which is illuminated by the existing skylights in the mezzanine.