What the Research Actually Says About Home Modifications and Fall Prevention
- Fritzi Gros-Daillon
- Apr 7
- 4 min read
If you work with older adults — whether in a clinical setting, on a job site, or in a design studio — you've probably made the case for home modifications more times than you can count. The logic is straightforward: if a home can be made safer, people can stay in it longer, with greater independence and lower risk of injury.
But how strong is the evidence, really?
A 2025 systematic review published in the journal Healthcare offers one of the clearest answers we've had in years. Researchers analyzed 20 peer-reviewed studies examining home modifications for aging in place and found that 65% - 13 of those 20 studies - confirmed the effectiveness of modifications for fall prevention, functional independence, and cost savings.
That's not a marginal finding. That's a clear signal from the research literature.
What kinds of modifications are we talking about?
The studies reviewed weren't testing experimental interventions. They were examining the kinds of modifications that CAPS-trained professionals recommend every day: grab bars in bathrooms, improved lighting, threshold removal, wider doorways, non-slip flooring, stair lifts, and adjustments to kitchen and living areas to support independent function.
Bathroom and mobility improvements appeared in virtually every study. Kitchen and living space modifications showed up in 75% of interventions. Support for independent living - including assistive device provision and modifications to cooking and activity spaces - was present in 70% of studies.
These aren't luxury upgrades. They're functional changes that directly affect whether someone falls, and whether they can stay home after they do.
The CDC data reinforces the picture
The research literature doesn't exist in isolation. The Centers for Disease Control and Prevention has found that home modifications and repairs may prevent up to 50% of home accidents among older adults - including falls, which remain the leading cause of injury-related death among adults 65 and older.
That's a prevention opportunity most of us in this field think about constantly. But for the homeowners and families we serve, it often doesn't become real until something happens. A fall. A close call. A discharge from a rehabilitation facility that suddenly makes the question urgent.
The gap isn't in the research. It's in the workforce.
Here's what the data doesn't capture: the number of older adults living in homes that have never been professionally assessed. Homes built decades ago, with standard-height counters, narrow doorways, and bathrooms that would fail any aging-in-place evaluation — occupied by people who've adapted to them over the years and may not realize how much risk they're living with.
The research makes a compelling case for home modifications. What's still limited is the number of trained professionals who can execute that case: who can walk into a home, assess it systematically, communicate findings to a client and their family, and recommend modifications that are clinically appropriate, structurally sound, and financially realistic.
That's the professional gap the CAPS credential is designed to close.
What this means if you're an occupational therapist
OTs are uniquely positioned to translate research findings into individual client action. You understand ADLs, you know the clinical picture, and you're often the first professional a family trusts after a hospitalization or discharge.
CAPS certification gives you the specific vocabulary, the assessment framework, and the home modification knowledge to expand that role - and in many cases, to create a private consulting revenue stream alongside clinical work. The credential signals to builders, contractors, and families that you understand both the clinical and environmental dimensions of aging safely at home.
What this means if you're a builder or remodeler
The research is doing your sales work for you - if you know how to use it. When a client's adult child calls asking what needs to change in mom's bathroom, you're not just a contractor. With CAPS training, you're the specialist who can assess the full picture, prioritize modifications by safety impact, and execute them with confidence.
In a market where 10,000 Americans are turning 65 every single day, that expertise isn't a niche. It's the fastest-growing segment of residential remodeling.
A note on what research can't replace
The systematic review confirms that home modifications work. What it can't quantify is the difference between a modification done well and one done wrong - a grab bar installed in the right location versus one that fails under load, a lighting upgrade that actually addresses nighttime fall risk versus one that just adds brightness.
That gap is filled by training, experience, and the kind of case-based learning that happens in a CAPS course. Evidence matters. So does the professional who knows how to apply it.
Ready to earn your CAPS certification? Fritzi Gros-Daillon — NAHB Master Instructor and 2019 Educator of the Year - teaches every course personally. Classes run live on Zoom, with May sessions now open for registration.
Already working with aging clients and want a professional assessment of their home? Household Guardians offers aging-in-place consulting for families and professionals navigating home modification decisions.
→ Schedule a consulting call (update with consulting page URL)
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