What the ADA Does and Does Not Cover in a Private Home

Why this matters

A customer says "it has to be ADA" and the job gets harder: the office quotes a public-building standard nobody asked for, the tech tells a family the law requires something it does not, or a landlord refuses a tenant's grab bars because "we are not an ADA building." Each costs something real: an inflated quote that loses the job, a promise the shop cannot back up, a fair housing complaint with the shop's name on the invoice. The fix is knowing which law reaches which building, and that in a private house the ADA's design numbers are a reference you choose, not a rule you are bound by.

This card owns the law layer for the accessibility group. This is not legal advice; where the card names a fork, that is the point to call the right agency or an attorney.

Four laws, four different triggers

Accessibility in housing is four federal instruments, each with its own trigger, and they stack rather than replace each other.

On top of those sit state and local building codes, which may adopt ANSI A117.1 (a consensus standard for accessible design, published by the International Code Council) and add their own housing chapters. A state layer can be stricter than every federal row above, and in several states it is.

Where Title III stops at the front door

The ADA's Title III does not reach a private home used as a home. It covers places of public accommodation (shops, offices, clinics) and commercial facilities. A house, condo or apartment lived in by its occupant is outside it, and so are the 2010 ADA Standards for Accessible Design that Title III enforces.

The exception is the home that is also a business. Under the Title III regulation at 28 CFR 36.207, when a place of public accommodation is located in a private residence, the part used only as a residence is not covered, but the part used for the business, or used both for the business and as a residence, is. A home daycare or a tax preparer seeing clients at the kitchen table brings the client entrance, the path to the business room and the restroom clients use inside Title III. The bedrooms do not come with it.

Title II is the government side, reaching state and local government programs, including public housing a housing authority operates (almost always also under Section 504, below).

The Fair Housing Act's design rules: one date, one unit count

The Fair Housing Amendments Act of 1988 added design and construction requirements, implemented at 24 CFR 100.205. They apply to covered multifamily dwellings designed and constructed for first occupancy after March 13, 1991:

• every unit in a building of four or more units that has an elevator, and
• ground-floor units in a building of four or more units without one.

A covered unit must meet seven requirements: an accessible building entrance on an accessible route; accessible public and common-use areas; doors usable by a person in a wheelchair; an accessible route into and through the unit; light switches, outlets, thermostats and other environmental controls in accessible locations; reinforced bathroom walls so grab bars can be added later; and kitchens and bathrooms a wheelchair user can maneuver in. HUD recognizes several safe harbors for meeting them, including specified editions of ANSI A117.1 and HUD's own Fair Housing Accessibility Guidelines.

It does not reach detached homes, duplexes and triplexes, upper-floor walk-up units, or anything first occupied before the 1991 date. And it is a construction requirement binding those who design and build the covered building, not a contractor renovating a unit years later. Your remodel of a 1996 ground-floor unit need not bring it into compliance, but the blocking was supposed to be in the wall, which changes how you mount a grab bar there.

The modification right, in one clause

Separately from design, the Fair Housing Act requires a housing provider to permit reasonable modifications a disabled resident needs to use the dwelling, generally at the resident's own expense in private housing. That right reaches far more housing than the design rules do. See related: Reasonable Modifications for Tenants.

Section 504: the funding decides

Section 504 of the Rehabilitation Act reaches any program receiving federal financial assistance, including federally assisted housing (public housing, many project-based subsidized buildings, housing built with certain federal grants). HUD's 504 regulation at 24 CFR Part 8 sets the build-out floor: in new construction and substantial alteration of covered multifamily projects, at least 5 percent of units (and at least one) accessible for people with mobility impairments, and at least another 2 percent (and at least one) for people with hearing or vision impairments.

The practical difference: under 504 the housing provider generally pays for a structural change a resident needs, as a reasonable accommodation, unless it is an undue financial and administrative burden or a fundamental alteration of the program. Under the plain Fair Housing Act in private housing, the resident generally pays. Same grab bar, different payer, so ask where the building's money came from before you quote.

ANSI A117.1 and the building code

The International Building Code's accessibility chapter (Chapter 11, as adopted by your jurisdiction) points to ANSI A117.1 and sorts dwelling units into Accessible, Type A (more fully accessible) and Type B (roughly the Fair Housing Act level) units, at the counts your adopted edition sets. The International Residential Code, which governs most detached homes and townhouses, carries essentially no accessibility requirement in its base text.

State and local layers are where the variation lives. California writes its own housing accessibility chapter (Chapter 11A of the California Building Code) on top of the federal floor. Some cities and counties have visitability ordinances (a zero-step entrance, wider interior doors, a usable main-floor half bath) that usually apply to new homes built with public money or incentives. Your building department will tell you which IBC and A117.1 editions it has adopted and any local amendment: a five-minute call before any job touching a multifamily building's common areas.

Using the 2010 ADA Standards as a reference in a house

In a private home, nobody can require the 2010 ADA Standards. Use them anyway as a dimensional reference: they are the most widely published and tested numbers available, an occupational therapist, an inspector and a funding program will all recognize them, and they encode real research on reach, clearance and load.

But they were written for a public building used by strangers. A home has one or two known users, and that changes the answer:

• The Standards place grab bars 33 to 36 inches above the floor (609.4). For a user who is short, or who pushes up from a low seat, the right height may sit outside that band.
• They place a toilet seat 17 to 19 inches high (604.4). A tall user with weak hip extensors may need it higher; a user who transfers from a low wheelchair may need it lower.
• They size clear floor space for a standard adult wheelchair (305.3, 30 by 48 inches). A power chair with a tilt function or a scooter can need much more.

The person's actual function wins over the reference number whenever the two disagree, and the scope should say which you followed and why. See related: The Accessibility Walkthrough With the Person Who Lives There.

Worked example: four calls in one week

A plumbing-and-handyman shop gets four requests in five days. The same layered question sorts all four.

Call 1: a detached ranch house, owner-occupied, the owner's spouse now uses a walker. No law above reaches this bathroom. The shop starts from the 2010 Standards' numbers and adjusts to the spouse, and the quote should not say "ADA compliant," a claim with no standard behind it here. "Grab bars per the 2010 ADA Standards' 250-pound-force design load, heights set to the user" is accurate and useful.

Call 2: a ground-floor unit in a twelve-unit garden-apartment building with no elevator, first occupied in 1996, privately owned, a tenant wants grab bars. Two federal rows apply. The design rules applied when it was built, so the bathroom walls should have reinforcement for grab bars; the tech confirms it with a stud finder and a small inspection hole before relying on it, because "should have" is not "does." And the tenant's request is a reasonable modification, generally at the tenant's expense, needing the landlord's permission. The shop wants the landlord's written approval before drilling.

Call 3: a second-floor unit in a thirty-unit building owned by a county housing authority, a resident needs a roll-in shower. Title II and Section 504 both reach it. The request goes to the authority as a reasonable accommodation, and the authority generally decides and pays. The shop's customer is the authority, and if its specification names a standard, that standard binds the job by contract.

Call 4: a detached house where the owner runs a licensed home daycare from the converted garage and front room. Title III reaches the business portion: the entrance families use, the route to the daycare rooms and the restroom children and parents use. A ramp at that entrance is the business owner's Title III question, and the 2010 Standards are the benchmark there rather than a voluntary reference. The family's upstairs bathroom is not covered.

What changes the answer. Move Call 2 to a building first occupied in 1989 and the design rules drop away, so the reinforcement is probably not there, though the modification right still applies. Put Call 1 under a visitability ordinance and usually nothing changes, because those generally govern new construction, unless the remodel is funded by the program carrying the ordinance. Fund Call 1 with a federal grant and 504 still may not reach it: a grant to an individual homeowner is not assistance to a housing program, and the grant's own terms decide which standard applies.

Where to stop, and what to walk in with

Three points are where you stop acting on this card and hand off:

• A dispute over whether a landlord must permit a change, or who pays. Send the resident to HUD's Office of Fair Housing and Equal Opportunity, their state fair housing agency or a fair housing organization, and do not start work meanwhile.
• Whether a covered building was built compliant. That is the owner's and builder's exposure, for their attorney.
• A business-owner customer asking whether their space now complies with Title III. Quote the work; route the compliance opinion to an accessibility specialist or attorney.

Walk in with the first-occupancy year, unit count, elevator or not, owner, any federal assistance, the written request and photos. Those facts decide which row applies, and most disputes start with nobody writing them down.

References

• Americans with Disabilities Act Title III regulation, 28 CFR Part 36, including 36.207 (places of public accommodation in private residences); 2010 ADA Standards for Accessible Design, sections 305, 604 and 609
• Fair Housing Act design and construction requirements, 24 CFR 100.205; HUD Fair Housing Accessibility Guidelines
• Section 504 of the Rehabilitation Act, HUD regulation at 24 CFR Part 8
• ANSI A117.1, Accessible and Usable Buildings and Facilities, in the edition your jurisdiction has adopted through the IBC
• See related: Reasonable Modifications for Tenants; The Accessibility Walkthrough With the Person Who Lives There