This course is centered on evaluating the sustainability of the built environment by performing Life Cycle Assessments (LCA). The different types of LCA, system boundaries and life cycle impacts indicators will be covered. Conditions for creating a good Indoor Environmental Quality (IEQ) in buildings will be described, including indoor air quality, thermal, visual and acoustic comfort, relative humidity and electromagnetic radiation. Environmental impacts of selected energy systems and building materials will be assessed for a residential building case study.