The project requires a tertiary pole intended mainly directional and offices. The reference design lie in the cultural memory of Colle di Val d’Elsa and become guidelines for the composition of planimetric and volumetric architecture. Topics such as the courtyard, the aspect ratio of the roads within the urban center, the aperttura sudden perspective, the sloping roof are proposed interpretative key and contemporary. If the form is archetypal, the choice of making the ethereal building is the use of rough white plaster finish that enhances the natural plasticity. Alignments, internal streets of the town and user privacy are held together by a building envelope in Class A, fully respecting all the requirements of the current legislation requires.