Housing is one of the main themes related to the creation of the city and plays a central role in the definition about how people live together. The development of new living strategies face many different fields of interest: urban planning, economy, social sciences, ecology, sustainability, technology. Architectural composition plays a central role in the definition of how all these matters can coexist and how it is possible to increase urban density and people’s quality of life. The analysis of Louis Sauer’s work on low-rise high-density houses outlines a solution useful for a variety of situations. Higher urban density makes it possible to increase real estate income from investments and, consequently, to increase the architectural quality of the buildings as well as the urban landscape. It gives a tangible answer to many aspects related to urban sustainability making the city more compact, reusing brownfields instead of greenfields, facilitating pedestrian cycle mobility or the use of public transport instead of private cars, and thus helping to reduce urban pollution and the use of natural resources.
