Psychological Comfort in Built Interiors: An Interpretative Study Based on Four Human Personality Types

Psychological comfort in interior built spaces is a significant but often neglected design aspect that heavily weighs on human satisfaction and well-being. Conventional design methodologies focus on physical comfort parameters-thermal, visual, and acoustic comfort but the user’s psychological experience remains poorly explored. The given study analyses psychological comfort as a lived quality influenced by spatial design and subjective perception. The study took the concept of psychological comfort from the classical theory of temperament, defining four basic personality types (sanguine, choleric, melancholic, and phlegmatic) and their variation in responses to interior environments. The literature review, behavioural interpretation, and spatial analysis on interior design variables such as lighting, colour, space scale, enclosure, materiality, and hierarchy were examined to see how these factors affected psychological comfort across personality dimensions. The result evidenced that psychological comfort is subjective, personality-dependent, and associated with emotional involvement in space. It also pointed out that human-centred and inclusive design approaches become necessary for maintaining mental well-being with functional and aesthetic quality in interior spaces.