The dream of owning a home in the countryside has led to cities expanding more and more, growing together and destroying unspoiled nature. In addition, however, the need for affordable and attractive living space in cities is also increasing. Proximity to work and good infrastructure are clear advantages of city life. The 'Penthouses for all' concept focuses on people's individual living wishes. It shows that sophisticated architecture can be affordable for all and is also possible in cities in the course of densification. The new living space for all is developed by building on flat roofs, which are plentiful in urban areas.

Unfortunately, in the past the possibilities of targeted development of roofs remained largely unrecognized, especially in the newly built districts. So far, flat roofs here have mostly only been planted or used for energy generation. Here and there they are also built on later, but as a rule they remain unused for residential purposes. The situation is very different in many southern countries. There, it is a matter of course to use flat roofs for living and to include them in the planning right from the start.

The book gives an insight into the inexhaustible possibilities of living on roofs. Numerous examples show that the dream of a home in the countryside can also be realized in the city.