The five pillars of healthy feline indoor environments - space, resources, predictability, interaction, and sensory stimulation - provide a framework for assessing and improving indoor cat welfare.
The five pillars framework provides a comprehensive welfare assessment tool that goes beyond basic needs (food, water, shelter) to encompass the behavioral and psychological requirements of indoor cats. Feline stress-related illness - particularly idiopathic cystitis, overgrooming, and inter-cat aggression - often reflects environmental inadequacy rather than primary medical pathology. A house with two cats sharing one litter box fails Pillar 2. A household with only floor-level furniture fails Pillar 1. Addressing these environmental deficiencies often resolves what appear to be medical problems without medication. The framework is both a welfare assessment guide and a practical checklist for improving indoor cat quality of life.