The greatest challenge for this project was to insert another small tower in the sea of buildings that conforms the city, within the rigid rules of the real estate market and, nevertheless, offer small kindnesses. The proposed scheme was based on a structure that could alternate the opening directions of the apartments, guaranteeing the best guidelines for views, aeration and insolation. This strategy could be imagined as systemic in a metropolis whose current model are isolated towers in their narrow plots. This implementation respects neighbours as it preserves adequate distances between apartments. In practice, it is an operation contrary to the generic designs stamped on any terrain, indiscriminately, which unfortunately represent the bulk production in the last decades of vertical dwelling buildings. Lots of construction and little architecture. Our intention was to attribute quality to the building from this site, from its urban situation, by spreading these conditions to the street, not only to the object. The construction is made of exposed reinforced concrete, that is, the structure, finish, volumetry and expression are born of the technical quality and rationality of the associated constructive systems. Each material was thought from its qualities: wood panel ceilings, internal plaster panels (for thermo-acoustic efficiency), and glass over all the face that opens to the balconies. The objective is the rationalization of works, generating speed and quality, as well as low maintenance cost and sustainability.