Aging-in-place design applies Universal Design principles to create homes that are accessible and functional across the full range of human ability — without the institutional appearance of medical-grade accessibility products. RainFire Builders’ scope (CAPS-standard aligned) includes: zero-step entries, 36-inch minimum clear doorway widths (ADA Chapter 4), lever-style hardware throughout, blocking behind bathroom walls for future grab bars at NKBA-recommended heights, curbless shower design, roll-under kitchen and bathroom counters, non-slip flooring, and elevator shaft or stair lift provisions. These features add minimal cost when designed into construction and are far more expensive to retrofit after the fact.