Interior Design Strategies for Mental Health and Emotional Healing in Healthcare Facilities

Abstract

Healthcare interiors are not neutral containers for clinical work. Their light, sound, privacy, materiality, spatial organisation and social cues can shape how people experience uncertainty, vulnerability, safety and belonging while receiving care. This paper critically examines interior design strategies that may support mental health and emotional healing in healthcare facilities, with particular attention to psychiatric and behavioural-health settings while drawing cautiously on wider healthcare evidence. It synthesises published systematic reviews, conceptual scholarship and selected foundational studies concerning therapeutic environments, sensory conditions, privacy and control, social interaction, nature and the balance between safety and dignity. Rather than treating design as a cure, the paper frames the interior environment as one component of a wider care system that can support or obstruct therapeutic relationships and daily coping. The synthesis suggests that the most defensible approach is not a single “healing style” or colour palette, but a coherent set of person-centred choices: legible layouts; meaningful privacy and choice; balanced daylight and controllable lighting; acoustic comfort; non-institutional but durable materials; opportunities for solitude and connection; access to nature and outdoor space; culturally responsive artwork; and safety measures integrated with dignity. Evidence remains uneven, often context-specific, and frequently stronger for perceived experience than for causal clinical outcomes. The paper proposes an evidence-to-design framework and a post-occupancy evaluation agenda. It is a literature-based synthesis, not a new systematic review, clinical trial or empirical study.