Accessibility is a whole-room problem, not a product. We design bathrooms where the door, the floor, the clearances, the fixtures, and the lighting work together — and that still look like the rest of your house, not a hospital.
32 in.
Clear door width a walker or wheelchair needs
ICC A117.1
30 × 48 in.
Clear floor space to approach each fixture
ICC A117.1
0.42 DCOF
Minimum wet slip resistance we specify for floor tile
ANSI A137.1
$10,000
Montgomery County tax credit for meeting the livability standard
Design for Life
Most accessibility advice online quotes the ADA. The ADA was written for public buildings, and applying it literally to a private bathroom gives you a room that feels institutional and often does not physically fit. Montgomery County homeowners have something better: the county’s Design for Life program defines two residential benchmarks — visitability (a home someone with mobility limits can enter and use) and livability (a home someone can keep living in) — and attaches property tax credits to meeting them.
That gives a remodel a target that is designed for houses rather than lobbies, and a financial reason to make the decisions early. The features have to be identified with the permit application, so it belongs in the first design conversation. Our aging in place page covers the credit tiers and the other funding paths in detail.
Nearly every hall bathroom in Bethesda, Chevy Chase, and Twinbrook is the same 5 × 8 feet. It will take a curbless shower, a 32-inch clear door, and a roll-under sink. It will not take a full 60-inch turning circle around the fixtures — and a contractor who tells you otherwise has not drawn it. Here is the room, to scale.
A grab bar beside a slippery floor is not an accessible bathroom. These are the decisions we make as a set, and what each one means in the houses around here.
We specify tile with a wet dynamic coefficient of friction (DCOF) of 0.42 or better, inside the shower and out, so the walking surface is continuous. This matters more here than in most markets: WSSC’s hard water leaves a mineral film that quietly reduces traction on a floor that tested fine when it was new. Matte porcelain and a smaller module on the shower pan hold up; the polished stone in a lot of 1990s Potomac baths does not.
A walker or wheelchair needs a 32-inch clear opening. Mid-century hall baths here routinely have 24- to 28-inch doors, and the door itself is not the whole story — a standard hinge holds the leaf in the opening. Swing-clear hinges recover about 1¾ inches, rehanging the door to swing out recovers the floor space it was eating, and a pocket door is on the table wherever the wall is non-bearing. Widening the rough opening is the last resort, not the first.
Every fixture needs a 30-by-48-inch clear floor space to approach it, and a wheelchair-usable room needs a 60-inch turning circle or a T-shaped turn. This is where honest measurement matters: in a 5-by-8 hall bath the circle does not fit around the fixtures, and the answer is either a T-turn, a relocated toilet, or square footage borrowed from a closet. We would rather tell you that at the measurement than at framing.
A curbless or roll-in entry removes the last obstacle in the room. Whether it is achievable depends on the floor structure — joist direction and depth in a Bethesda rambler, slab construction in a Rockville condo. A linear drain along the back wall usually notches fewer joists than a center drain. Where curbless is genuinely not possible, a 1½- to 2-inch threshold gets most of the benefit.
A 17- to 19-inch comfort-height seat makes sitting and standing far easier, and it looks like any other toilet. The clearances matter as much as the fixture: code wants 15 inches from the centerline to any wall and 21 inches of clear space in front, and older local bathrooms frequently have 12 or 13. If a transfer or a caregiver needs to be accommodated, the compartment usually has to grow, not just the toilet.
Bars are engineered to hold a 250-pound load, which requires solid in-wall blocking — not drywall anchors, and never a suction bar. We block a continuous band from 18 to 48 inches above the floor across the whole wet wall, so the bar height is a decision you can make later. Specify them in the same finish as the faucets and they read as towel bars, because half the time that is exactly what they also are.
A roll-under sink needs about 27 inches of knee clearance, 30 inches of width, and an insulated or offset P-trap so nobody is resting a knee against a hot pipe. Wall-hung vanities give you the clearance and make the floor easier to clean; a comfort-height vanity suits someone who is unsteady rather than seated. Drawers beat doors at every mobility level, because reaching into the back of a base cabinet is the part that gets hard first.
Most 1950s hall baths in this area still have one ceiling fixture and a bulb over the mirror. We layer it: even ambient light, task lighting at the mirror, a wet-rated fixture inside the shower, and low motion-activated lighting for the 2 a.m. trip. For anyone living with dementia, Parkinson’s, or a vision change, contrast does as much work as light — 30 or more points of light-reflectance difference between floor, wall, and fixtures makes edges legible instead of ambiguous.
Split-levels and capes with the bath a half-flight up
Twinbrook and Rockcrest ramblers, King Farm and Fallsgrove townhomes
Chevy Chase Village, Somerset, Martin’s Additions
Avenel, River Falls, Falconhurst primary suites
| Upgrade or Scope | Estimated 2026 Cost* |
|---|---|
| Grab bars with solid in-wall blockingBlocking is a fraction of this while the wall is open; the rest is bars, layout, and finish. | $400 – $1,200 |
| Comfort-height toilet, installedFixture and installation. Moving it to gain clearance adds a WSSC plumbing permit and cost. | $600 – $1,400 |
| Widen a door to a 32 in. clear openingFraming, drywall, trim, and paint. Swing-clear hinges or an out-swing rehang: $300 – $700. | $1,200 – $3,000 |
| Slip-resistant floor, 5 × 8 bathroomTile specified to 0.42 DCOF wet or better, with flush transitions at the door and shower. | $1,600 – $3,500 |
| Roll-under vanity and accessible fixturesKnee clearance, insulated trap, lever or touch controls, and reachable storage. | $2,200 – $6,000 |
| Layered and contrast lighting packageAmbient, task, wet-rated shower light, and motion-activated night lighting. DPS electrical permit included. | $900 – $2,500 |
| Curbless / roll-in showerRecessed floor structure, linear drain, 36 in. clear entry, blocking, and a seat. | $18,000 – $28,000 |
| Full accessible hall bathroom (5 × 8)Everything above in one project: shower, door, floor, toilet, vanity, lighting, and finishes. | $28,000 – $48,000 |
| Wheelchair-usable primary bath with turning spaceLarger footprint, relocated fixtures, roll-in shower, and a genuine turning space. | $45,000 – $85,000 |
*These figures are rough planning estimates only. Your actual quote will depend on in-home measurements and the current cost of materials and labor at the time of your project, as well as the specific finishes and scope you choose. For an accurate price, schedule a free in-home consultation with our team.
We design accessible bathrooms for homeowners across a wide range of needs, and the specification changes with the person — not with a product line:
Replace a step-over tub with a low-threshold or curbless walk-in shower.
Plan now so the bathroom still works in ten years — and qualify for county credits.
Made-to-measure vanities, including roll-under and comfort-height designs.
Full bathroom renovations in Bethesda, Rockville, Chevy Chase, and Potomac.
Five-star reviews from homeowners across the DMV area.
Kitchen Remodel & Custom Addition
This was our fourth project with iDesign in the past couple of years, and they impress us every time — the office responds quickly and the crews show up when promised. For our full kitchen renovation and custom addition, the showroom team explained every phase and worked in everything on our list. They even matched the paint and style of the addition to the rest of the house, something other contractors had told us was impossible.
Roger
Multi-Room Home Remodel
iDesign made our dream home happen. Coordinating separate contractors for a multi-room remodel had been a struggle, but working with one design team and their own crews took all of that stress away. Communication was excellent from start to finish across nearly 2,400 square feet of renovation — including the kitchen, which had felt overwhelming before. We are grateful to the whole team.
Man J.
Full Condo Remodel
Our condo received a stunning top-to-bottom remodel: a flawless kitchen transformation, a bathtub-to-shower conversion, popcorn ceiling encapsulation, and new recessed lighting that brightens the whole space. The craftsmanship is exceptional, and the customer service made a major renovation completely stress-free.
Elena D.
Second-Story Addition & Rental Prep
We were on a hectic timeline preparing our house as a rental before moving out of the DMV, and we could not have navigated it without iDesign. They built a custom second-story addition, replaced the kitchen backsplash, installed a new bathroom vanity, and repainted several rooms — and they connected us with a licensed architect for the DC permits, which saved us a huge headache. Their attentiveness and input were invaluable.
Rami B.
Emergency Repair & Bathroom Remodel
When water started leaking through our ceiling one morning, the iDesign team and their plumber were at our house within hours and quickly traced it to a pipe under the bathroom floor. The price they offered was so good that we ended up redoing the entire bathroom. The work was wonderful, finished quickly, and barely disrupted our routine — we would call them again without hesitation.
Claudia F.
Visit our showroom to compare grab-bar finishes, slip-resistant tile, and comfort-height fixtures side by side.
iDesign Interior Solutions · North Bethesda, MD
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