This study employs a descriptive and analytical research design to investigate the impact of aging on the stability of interior color preferences in Jordan. A structured questionnaire was administered to 302 participants representing various age groups and genders. The results reveal a significant shift in color preferences as individuals age, with more than 70% of respondents aged 55 and older favoring neutral tones such as beige, white, and brown. The study also highlights noteworthy gender differences, where males predominantly prefer white, while females show a stronger inclination towards beige. These findings provide interior designers, architects, and heritage conservationists valuable insights. By understanding how color preferences evolve with age and differ between genders, professionals can create environments that cater to an aging population's aesthetic and psychological needs. Additionally, the study emphasizes the importance of integrating these preferences into conserving heritage buildings, ensuring that restored spaces remain relevant, comfortable, and culturally significant for contemporary users.