The dream of owning your own home in the countryside has led to that Cities are expanding more and more, growing together and the destroy untouched nature. In addition, however, the demand is increasing affordable housing and small residential units in the cities. The proximity to the workplace and the good infrastructure are clear advantages of city life. The concept ‘Penthouses for everyone’ represents the individual living wishes of people at the center. It shows that sophisticated architecture can be affordable for everyone can and is also possible in cities in the course of densification. The Development of the new living space for everyone takes place via the development of flat roofs, which exist in large numbers in urban areas are. Unfortunately, the possibilities of targeted development remained roofs especially in the new development areas in the past largely unrecognized. So far, flat roofs are mostly only here planted or used for energy production. Here and there will be although they are also subsequently built on, they usually remain unused for residential purposes. How different it is in many people southern countries. It goes without saying there that flat roofs are used To use housing and to include it in the planning right from the start. The book gives an insight into the inexhaustible possibilities that arise when living on roofs. Based on numerous Examples are shown that the dream of home ownership in the countryside can also be realized in the city. It's not just small inexpensive roof houses possible. With special ‘construction kits’ larger units can also be assembled; also alternatives Forms of living can be thought of and implemented, nothing remains utopia. Ultimately, it's about living in the cities to make it more attractive again, to avoid urban sprawl and the destruction of nature to prevent and people well in the city home and return identity. However, this requires new building laws and development plans create the conditions. So far, a subsequent development of roofs is often prevented or excluded by building laws rejected for aesthetic reasons. A further construction on roof surfaces is paralyzed with the demand for adaptation to the existing situation. Only roof structures are created that are hardly recognizable as such or the given monotonous design elements record to adapt to the inventory.