The analytical category of habitability is generally understood to be a measurement of the quality and dignity of the internal conditions of a residence. However, this definition is insufficient. It is better to speak of external habitability, which refers to variables such as sustainable urban development, social inclusion, and social construction of territory. In this chapter, the social impacts of nine urban intervention projects in Comuna 8, Medellín, Colombia are assessed though a lens that combines internal and external habitability analyses. Beginning with an in-depth theoretical discussion of habitability in the Spanish literature that relates it to urban English-language "Quality of Life" (QoL) literature, the chapter then examines how the existent analyses of the habitability produced by the Municipality of Medellín are insufficient, and proposes a matrix of qualitative and quantitative indicators for the integrated measurement of internal and external habitability.