Intelligibility evaluation of houses in Dezful city in Qajar and Pahlavi periods using UCL Depthmap software

What is identified in the attitude toward the house is the visual and perceptual structure that is formed for the audience. Intending to evaluate the level of visual clarity in Dezful houses during the Qajar and Pahlavi periods, this article tries to analyze the course of its developments and answers the question of What was the evolution of visual clarity in Dezful houses during the Qajar and Pahlavi periods? The present research was conducted using a combined method, based on the quantitative data obtained from the Depthmap software and the analysis of these data using the method of logical reasoning. The case samples included 20 houses, which were selected purposefully, considering the lack of physical interventions, from among the houses of Dezful in the Qajar and Pahlavi periods. The results of the research show that the houses of the Pahlavi period have a higher level of Connectivity compared to the Qajar period. Also, in the Qajar period, houses with one yard are more integrated than houses with two and three yards, and according to this, the houses of the Pahlavi period are considered more integrated than the houses of the Qajar period. The results of the research on visual clarity indicate that this criterion has a lower level in the Qajar period than in the Pahlavi period Therefore, by passing from the Qajar period to the Pahlavi period, the amount of Intelligibility in the houses has increased, and it has made the houses of the Pahlavi period more legible and more visually clear than the Qajar houses.