Abstract : One of the pillars of architecture is modern environmental techniques, in which modern architectural theories seek to achieve environmental compatibility between building materials and the environment. This is done through the use of modern environmental technologies and treatments in buildings in general and in façades in particular. The façades of buildings that use modern environmental architectural technologies and treatments allow for an increase or decrease in lighting, ventilation, and temperature. These are the conditions of internal spaces that require consideration by the architectural designer when using modern environmental architectural techniques and treatments. This achieves compatibility with climatic variables throughout the year. Therefore, the research aimed to identify the applications of modern environmental technologies in building façades, how to achieve thermal comfort for users, and the extent to which they rationalise the energy consumed in achieving thermal comfort. To achieve the research goal, the study analysed the covers of eight buildings in terms of modern environmental technologies (mobile façades). An analytical comparison was also conducted between the study cases to determine how these technologies achieve thermal comfort, hence the extent of the impact of applications of modern environmental technologies (mobile interfaces) became clear. About case studies in obtaining a built environment characterised by appropriate thermal comfort for users, as well as the extent of rationalisation of energy consumed in achieving thermal comfort in the interior spaces of buildings.