Evaluating the role of functional and physical changes on the quality of spatial relations in Qajar period houses: A case study of Tabriz

One of the urban elements are houses in which their configuration has undergone many changes during the Qajar period. Therefore, considering the change in the physical system of houses, it seems that their functional relations must have also witnessed many changes, which has provided the basis for dealing with the issue in the current research. Therefore, the purpose of this research is to investigate the changes made in the physical-spatial structure of the architechture of a house during the Qajar period and to evaluate these changes on the functional system of different spaces of the house during this period. Based on this, 9 houses in Tabriz belonging to the Qajar period were selected as research samples for the purpose of this investigation. The analysis of the spatial-functional structure of the houses was conducted using the space syntax technique, in this regards, syntactic mathematical relationships, as well as deepstamp software and syntactic plugin in Grasshopper, were used to analyze the data. The results of the research indicated that with the passage of time and the change in the physical system of the houses during the Qajar period, even though there were changes in the shape and location of some elements and changes in the use of houses, there have not been many changes in its functional system. In other words, “spatial relations” as a subset of functional relations, with the physical transformations of space have not undergone many changes.