This research aims to analyze the decorative elements and arrays of Qajar-era houses in Tabriz based on three key dimensions: aesthetic, functional, and sense of place. The study focuses on identifying how these dimensions contribute to the architectural value and cultural significance of the houses. The objective is to assess how decorative features enhance the spatial identity and functionality of the houses, and how these elements resonate with the social and historical context of the Qajar period. The research utilizes a mixed-method approach, combining qualitative analysis with a quantitative evaluation. A total of 20 experts in the field of architecture and urban planning were selected for this study. Data were collected through surveys and expert interviews, and were analyzed using the PLS-SEM (Partial Least Squares Structural Equation Modeling) method. For weighting the criteria, Shannon entropy was applied, allowing for a more precise ranking of the houses based on their aesthetic, functional, and sense-of-place dimensions. The results indicate that "House X" achieved the highest score in terms of aesthetic and functional appeal, while "House Y" excelled in creating a strong sense of place. The findings also show significant correlations between the design elements and the socio-economic status of the original owners. The study concludes that the decorative arrays of Qajar houses not only reflect the artistic trends of the period but also serve as crucial elements in defining the identity and spatial experience of these historical buildings.