When stairs become the daily obstacle standing between someone and independent living, the first suggestion is usually a stairlift. But a stairlift is not automatically the right answer, and for a growing number of households the better long-term fix is converting a downstairs room into a bedroom and wet room instead. Which one an occupational therapist actually recommends depends on a fairly specific set of factors — and knowing them before the assessment happens can save weeks of back-and-forth.
Why this isn’t just a cost comparison
It’s tempting to treat this as a straight price comparison, and the numbers do matter: a straight stairlift typically costs somewhere in the £1,500–£3,500 range, while a curved stairlift — needed for any staircase with a bend or half-landing — usually runs £3,500–£10,000 because the rail has to be custom-built to the shape of the stairs. Reconditioned units can bring the straight-stairlift figure down further, and rental is also an option for shorter-term needs. A downstairs bedroom and wet room conversion is a different kind of spend entirely: it can, in some cases, work out considerably cheaper than a lift, particularly a through-floor lift (which typically starts around £10,000 and can reach £30,000 or more) — but the true cost depends entirely on how much building, plumbing and electrical work the room needs, so there’s no single average figure to quote. What actually decides the recommendation isn’t the price tag; it’s whether the person can use the stairs safely at all, now and in six months.
What an occupational therapist is actually assessing
An OT’s home visit isn’t a tape-measure exercise. They’re weighing several things together:
- Transfer ability. Can the person get on and off a stairlift seat safely, hold a sitting position for the ride, and operate the controls? If yes, a stairlift is often the simpler, faster route.
- Wheelchair use. For someone who uses a wheelchair full-time, transferring onto a stairlift seat is often impractical without a hoist, which makes a ground-floor conversion — or a through-floor lift — the more workable option.
- Whether the condition is progressive. If mobility is expected to decline further, fitting a stairlift now only to need a full downstairs conversion in eighteen months is a false economy. OTs are trained to look past the immediate need toward where things are heading.
- Fatigue, pain and breathlessness. Even someone who can technically manage the stairs may be better served by removing the need to climb them multiple times a day.
- The impact on everyone else in the house. A stairlift fitted on a narrow staircase can make it harder for other household members to use the stairs at all; that trade-off gets weighed too.
What the house itself has to offer
Staircase shape matters more than people expect. A straight run with enough width and a safe landing at both ends is the easiest and cheapest stairlift scenario. A curved or particularly narrow staircase pushes the cost up and can, in some layouts, rule a stairlift out altogether on safety grounds. On the conversion side, the question is simpler but more binary: is there a downstairs room — a dining room, a study, occasionally a garage — that’s large enough to become a bedroom, plus either space for an adjoining wet room or a nearby existing bathroom that could be adapted? If there isn’t, the conversion route usually means an extension, which changes the planning picture considerably (see below).
Planning permission and building regulations: the part people get wrong
A stairlift almost never needs planning permission — it’s a reversible internal fitting that doesn’t alter the building’s external appearance or use. Converting an existing room into a bedroom is generally the same: an internal change of use within your own home. Turning an existing bathroom into a wet room is also typically planning-permission-free, though building regulations still apply and will check ventilation, drainage, structural stability and electrical safety. Where the picture changes is if there isn’t a suitable room to convert and the plan becomes a single-storey extension to create one — that will almost certainly need planning permission, and if the property is listed or sits in a conservation area, the rules tighten further and an early conversation with the local planning department is essential before any work is costed.
Where the Disabled Facilities Grant fits in
Both routes can, in principle, be funded through a council’s Disabled Facilities Grant, provided an occupational therapist has assessed the work as necessary and appropriate for the person’s needs and reasonable and practicable for the property. The grant is means-tested for adults (children under 18 are exempt), and the maximum award is £30,000 in England, £36,000 in Wales and £25,000 in Northern Ireland — caps that matter more for a downstairs conversion, which can consume a much larger share of the grant than a stairlift typically does. The starting point for either option is the same: contact your local council’s adult social care team, or ask your GP, to request a free occupational therapy assessment. Nothing about funding eligibility should be assumed before that assessment has actually happened.
The decision in practice
In most straightforward cases — someone who can transfer safely, whose condition is stable, and whose staircase is a manageable shape — a stairlift remains the faster and cheaper fix, often installed within days of ordering. The downstairs conversion route tends to make more sense where mobility is likely to decline further, where a wheelchair is already in daily use, where the staircase itself is unsuitable for a lift, or simply where the household would rather solve the problem once than adapt in stages. Either way, the recommendation should come from an occupational therapist’s actual assessment of the person and the property, not from whichever option a fitter happens to sell. If a quote or an installer suggests one solution before anyone has assessed transfer ability, staircase shape and the property’s realistic room options, that’s worth treating as a sales pitch rather than an adaptation plan.