First prize in a private competition. The starting conditions were: a blue building (referring to its name: Bluenet), highly modular and fulfilling all the area available. The project emerged as an apparently simple cubic blue glass volume resting on a stone basement that spans the site, creating access holes and courtyards that provide light and natural ventilation to below ground floors. Given the climate of Seville, the glass facade is mostly opaque inside, reducing to only one third of the surface the solar radiation that finally traverses the facade. Inside a large common area relates the public and private spaces, as a technological version of the Andalusian “patio”. This place is designed as a circulation space of confluence of activities as well as the building's main thermal regulator. A structural grid of 10x10m guarantees open and flexible floor plans. The offices are placed around the courtyard, with corridors and windows on their perimeter, that bring in natural light and ventilation also to inner spaces.