The objective of this research is to assess the environmental impacts associated with the construction and use of a residential house. Building materials and electricity end-uses were assessed. The study was used to highlight some initiatives for the residential-building industrial sector and also some of the aspects that should be considered when trying to improve sustainability indicators. As a study case, a Colombian dwelling located in the city of Pamplona was chosen. The findings of this research showed that the highest environmental impacts during the dwelling�s life cycle take place during the operation phase of the dwelling, while construction phase generates about 7-28% of the impact. Transportation and maintenance combined account for less than 10% of the life cycle impacts.