International Journal of BIM and Engineering Science IJBES 2571-1075 10.54216/IJBES https://www.americaspg.com/journals/show/971 2021 2021 Superior Technical School of Architecture at Barcelona (ETSAB), Polytechnic University of Catalonia (UPC), Barcelona, Spain and Laboratory Studies of Thermal and Energy Systems, LESTE, Engineering National School of Monastir, University of Monastir, 5000, Tunisia Habiba Benzarti ep Ghedas In Tunisia, the energy consumption associated with the residential building sector has continuously increased over the last three decades. This sector was identified to be one of the most cost-effective sectors for reducing energy consumption by the progress and the use of efficient technologies. Passive and active systems using clean energies are developed to lessen the energy needs and provide a sustainable environment. The Trombe wall system is efficient if it is correctly designed. This study aims to assess the thermal efficiency of the Trombe wall system in the Tunisian climate. To achieve our goal, a promising new technology BIM (Building Information Modeling) is used to evaluate the thermal effect of passive solar heating in Tunisian dwellings. Therefore, Energy Use Intensity, Annual Energy Cost, and Life Cycle Energy Cost parameters are used to assess the performance energetic and environmental of Trombe wall system. 2021 2021 79 89 10.54216/IJBES.040205 https://www.americaspg.com/articleinfo/22/show/971