The project is about the renovation of an existing prefabricated building. The single storey office space became a two-storey area through the steel floor that is designed during the renovation process. The façade structure is the main peculiarity that attracts attention in the project. There is a color system that is composed of the random distribution of orange and gray on the glass curtain wall. The grey colors in diverse shades are grounds for the dominant orange color. The colored glasses, which their colors are randomly arranged, develop a systematic façade arrangement through their location on a structure that has ordered intervals.