Ph.D. in Interior Spaces is a specialized research degree that studies and designs interior settings, with a focus on how spaces affect human behavior, well-being, and functionality. The program typically lasts 3-5 years and covers themes such as spatial design, architectural theory, environmental psychology, sustainable design methods, lighting, acoustics, materials, and the cultural and social consequences of interior spaces. Students perform unique research on topics such as the relationship between interior environments and health, the function of design in increasing productivity, and the influence of technology on interior spaces. Graduates frequently seek professions in academia, design consultancies, architectural firms, urban planning, healthcare design, and commercial or residential development. Admission usually requires a master's degree in interior design, architecture, or a related field, along with a strong foundation in design theory, research, and spatial analysis.