Population growth, immigration and the growing gap between rich and poor are major challenges for housing and urban planning in large cities. Vertically Integrated Socialism suggests a pragmatic system that incorporates the conflicting needs, interests and aspirations of different social classes.

The apartment block offers 64 free housing units for the most under privileged. One floor higher comprises 16 apartments for the working class. The upper middle class is accommodated in 4 luxury duplexes and an exclusive penthouse 5 storeys up is home to an extremely rich individual. The rent for each level is paid by the residents of the floor above.

Grenier places a studio in the church of the Grootseminarie and a model of the entire building. A video explains the concept of the social integration model.

Vertically Integrated Socialism is an architectural template that is designed to concentrate and organise the economic, political and social inequalities of the modern metropolis. Residents themselves choose how they participate in this microcosm and whether it results in order and stability or unrest and revolution.