This research is part of a project related with the environmental-energetic conditions of Río Turbio city. The city is located in the south extreme part of Argentine Republic territory. This research embraced the residential area of the city with the purpose of develop techniques of retrofitting in order to improved the higrothermic comfort, as well as, optÍmÍze the energetic consume of the dwellings. There are exposed the methodology and the results of the potential capacity of saving. As a conclusion, there are exposed the data emerged from the primary consumption of energy of energy for the residential and tertiary sector, urban area.