In Mexico and the rest of the world, housing represents one of the main problems in economic and social areas, and the impact of this problem can be summarized in the following seven points:

1. High rates of housing backlog;
2. It is difficult for people to get a house due to low incomes;
3. Insecurity in housing tenancy;
4. Shortage of spaces to build houses that may offer regular infrastructure and that may be near to employment sources;
5. Difficulties to provide the same access to services in rural areas, and in the fringes of the city;
6. Big differences between houses in indigenous communities, rural environments, and urban areas;
7. Low community standards in neighborhoods.

The program of United Nations for human settlements UN HABITAT (2011), mentions that there are seven elements to consider a housing service suitable: availability of services, materials, facilities and infrastructure; affordability; and habitability. In this topic, Congregación Mariana Trinitaria A.C. through this program, provides supports and solutions to build, enlarge or improve houses; and to allow access to basic services and technologies that contribute to environmental protection.