Beyond Physical Accessibility for Inclusive Age-Friendly Homes: Insights from a Comparative Study of Two Residential Developments

Supporting aging adults who wish to maintain their independence and stay in their homes is becoming an increasingly prevalent issue in the United States and worldwide. Aging-in-place is a popular term in aging literature, defined as one's ability to live as they possibly can, confidently and independently, in their private home. However, current housing design and construction considerations for aging adults are typically limited to projects specifically catering to retirement or senior communities, focusing primarily on physical accessibility. There is insufficient research or application addressing the cognitive and physical aspects of aging in residential design, construction, and operation despite the growing emphasis on smart buildings. To examine the current housing options for aging adults in the United States, this case study offerred a comprehensive comparison of two residential units in terms of internal spatial features, design, and construction costs. One unit adheres to the requirements outlined in the Fair Housing Act and the Americans with Disabilities Act, targeting individuals aged 55 and above. The other unit, with comparable dimensions, lacks the same emphasis on accommodating aging individuals. Both housing units were developed and budgeted in Lawrenceville, Georgia, in March 2021. By examining floor plans, accessibility, building systems, and costs associated with these two units, it was found that the construction cost of the housing designed for 55 years and older was 35% greater than the comparable project. The major contributor to the cost difference was the restriction of designing an accessible living space on one level rather than features that support aging. Hence, this paper provides a suggested range of current smart trends, home sensors, and aging-friendly features that cater to the various physical, cognitive, and social/psychological needs of aging adults. This research highlights the pressing need for comprehensive housing design and construction strategies that consider cognitive aging alongside physical aging.