2134/25971 Farid Fouchal Farid Fouchal Vanda Dimitriou Vanda Dimitriou Tarek Hassan Tarek Hassan Steven Firth Steven Firth Argyris Oraiopoulos Argyris Oraiopoulos Jonathan Masior Jonathan Masior Sven Schimpf Sven Schimpf Decision support tool for selection of best building retrofit action Loughborough University 2017 MCDM Building retrofit BIM Decision support Energy performance Built Environment and Design not elsewhere classified 2017-08-04 10:47:03 Conference contribution https://repository.lboro.ac.uk/articles/conference_contribution/Decision_support_tool_for_selection_of_best_building_retrofit_action/9433358 This paper shows a process of developing a decision support tool to automatically generate building retrofit alternatives and rank them using energy performance analysis, user requirements, relevant benchmarks and regulations. Refinement of the retrofit scenarios follows a set of steps from creation of a Building Information Model of a base-case representing the status of the building at the time of the analysis, then creation of combinations for the possible retrofit scenarios. TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) based multi criteria approach is adopted as it relies on identified best alternatives using selected criteria. Ranking of alternatives follows their relative closeness to the identified ideal alternative. Best options are graphically presented.