Under the supervision of the study “Simone Micheli” we have created a new concept for the hotel B4 in Via Giorgio Stephenson 55. We call it “HOTEL molecule”, the idea came up by looking at a photograph of the molecule. We wanted to design a space using this form hexagonal to divide the space and create different areas: reception | waiting room | area brunch | restaurant | bar. The challenge was to create a business-friendly hotel where different kinds of people can come all over the 'year because of its location near to the Milan Fair.