Design consistency in Airbnb interiors creates a cohesive, inviting atmosphere that enhances guest comfort and perception of quality. Choosing one clear theme—such as biophilic, Scandinavian, or modern farmhouse—and carrying it through every room prevents the 'furniture store mashup' effect, which can feel chaotic and unprofessional. Consistency helps listings photograph better and appeals more strongly to guests comparing multiple options, ultimately increasing clicks, bookings, and average daily rate.