Buildings are one of the longest lasting objects in our society. Whilst they represent a shelter and a place for everyday living, they also have, during the different life phases, a significant impact on the environment. The overall objective was the evaluation and comparison of different sustainable building concepts, such as the Passive House Standard, the Sun House concept and the Low-tech Building concept, embedded within the analysis of their Life Cycle performance. The Life Cycle Assessment is based on EN 15978, DGNB-certification by ÖGNI in Austria and the database ‘ÖKOBAUDAT. The analysis was performed for the Viennese housing complex ‘young corner in Passive House Standard with about 8,500 m gross floor area. The 10-floor-building was planned by ‘Treberspurg & Partner Architekten and completed in 2011. Based on this residential building, a scenario according to the Sun House concept and a further scenario according to the Low-tech Building concept were assessed. Furthermore, former building evaluations and Life Cycle Analyses from Koch (2007), König (2009), Ritter (2014) and Treberspurg (1999) were used as complementary sources for a holistic contemplation. A central outcome of the conducted analysis was that all concepts range on a similar level for an aggregated interpretation of seven evaluated environmental impact indicators. Nevertheless, in a contrasting manner the concepts vary significantly, up to 33 % for individual environmental indicators and 38 % for particular life cycle phases. Summarizing it can be said, that this thesis points out differences but also strengths and weaknesses of different building concepts and relates them in a holistic manner.