Aesthetic perceptions in architecture and urban design: bridging art and function

The philosophy of art, particularly its focus on beauty, underpins how aesthetic judgments are formed in architecture and urban design. However, overlapping philosophical orientations can cloud the criteria used to evaluate buildings and urban spaces. Drawing on Kant’s perspective, free beauty refers to design expressions relatively unconstrained by functional rules, whereas restricted beauty involves specific guidelines or ends that shape aesthetic outcomes. This study hypothesizes that clear standards and rules can unify these judgments in architecture and urban design, ultimately fostering coherent urban results. Using a descriptive–analytical methodology, the research compares instances where aesthetic judgments lean more toward free beauty–emphasizing creativity and artistic freedom–with contexts where external provisions (e.g., engineering codes, heritage statutes) reinforce restricted beauty. In doing so, it outlines key differences between purely artistic evaluations and those also subject to engineering or regulatory norms. By clarifying how free and restricted beauty apply in different scenarios, this work addresses an existing knowledge gap: while architectural products may blend both free and restricted elements, urban design typically adheres more tightly to rule-based frameworks. The findings suggest that better-defined aesthetic guidelines can ensure functional and visually integrated outcomes in modern architectural and urban practices.