This research paper contributes to the investigation of the contribution of proposing and designing a measurement method that can determine the extent of the reflection of the impact of buildings' functions on their architectural facades, and to measure the ratios and rates of reflection and reading of the building's function in advance from looking at its architectural facade by conducting a survey. This applied research study is an important step in The direction of a deeper understanding of the types of architectural facades and the mutual influence between them and the function of the building, and to what extent the indication of the function of buildings is clear and legible in their architectural facades. The research methodology is based on defining the research problem, then presenting the importance of the research field, defining the objectives, then studying the previous literature related to the research, defining applied study cases, choosing the proposed measurement method, and the reasons for choosing the applied study samples, then making questionnaire forms to conduct the research survey. The research study sample was selected from 100 people from Architects, designers, specialists in the field of architecture, and students of the architecture department in a number of universities in different schools and architectural orientations. Interchangeability with the function of the building for the public or lack of understanding of the criteria presented in the questionnaires, then monitoring the results, and the most prominent in the results is that it was found from the statistical analysis that the academic facades of religious buildings got the first place in the arrangement of the centers of the types of architectural facades of buildings, according to the strength of the indication of the function where It is characterized by the greatest effect of function reflection on the facade of the building from the point of view of the selected research sample, with an average score of (2.3), with a percentage of 17%. While it was found from the statistical analysis that the facades of the fantasy got the ninth place in the ranking of centers for the types of architectural facades for buildings, according to the strength of the indication of the function, as it is characterized by a very weak amount of the impact of the function's reflection on the facade of the building from the point of view of the selected research sample, as its average score is (0.7), with a percentage of 5%. The research paper recommends applying the applied research study on a wider scale and on a larger scale to all segments of society in order to better understand the public's feelings and interpretations of the types of architectural facades and the impact of function reflection on them in the different functions of buildings to measure the extent of their awareness and identify the understanding and awareness of the general users, which has been proven from previous studies that it often differs. About the understanding, analysis, interpretation and preference of architects and specialists in this field, as well as the need to increase cultural and scientific awareness among designers and society about what is being developed of new types of architectural facades for buildings in order to keep pace with contemporary architecture around the world.