Many people would rather adapt the home they love than move, whether they are planning ahead for later life, recovering from an illness, or caring for a family member with a disability. With the right building work, a house can become safer and easier to live in for years to come. In Cornwall, where many homes are older, on sloping plots or full of steps, that often means more than adding a grab rail.
This guide covers the main types of accessible adaptation, from ground-floor bedroom and wet room extensions to level access and wider doors, plus the regulations and funding questions worth raising early. It is general guidance only, and the right solution always depends on the person's needs.
Start with an assessment of needs
Before thinking about building work, it helps to understand exactly what is needed now and what may be needed in future. An occupational therapist (OT) can assess how someone moves around the home and recommend adaptations, such as the type of shower, door widths or whether a stairlift or through-floor lift is suitable. An OT assessment is usually part of any council grant application, so it is often the right first step.
Designing for future needs can save money later. For example, a ground-floor shower room built with space for a wheelchair to turn may avoid a second round of work in a few years.
Ground-floor bedroom and wet room extensions
Where stairs are becoming difficult, one of the most effective solutions is to create a bedroom and accessible bathroom on the ground floor. Options include:
Converting an existing room, such as a dining room, garage or study, and adding a wet room next to it. Our garage conversions guide explains what that project involves.
Building a single-storey extension containing a bedroom and wet room. Our home extension guide and permitted development guide explain planning.
Building a self-contained annexe for a relative who needs support but wants some independence. See our annexe guide.
Bungalows are often a good starting point for adaptation. Our bungalow renovation guide covers ways to rework the layout.
Designing an accessible wet room
A wet room has a level-access shower with no tray to step over. Key points include:
Floor falls and drainage: the floor must slope towards a drain so water does not spread. On a suspended timber floor this needs careful construction; on a solid floor the screed is laid to falls.
Waterproofing: the floor and lower walls must be fully tanked before tiling.
Slip resistance: choose flooring with good slip resistance when wet.
Space: allow room for a shower seat, a carer if needed, and a wheelchair to turn where relevant.
Fixtures: grab rails need solid fixings, so plan where they go before walls are finished. A raised-height WC, lever taps and a thermostatic shower are often recommended.
Ventilation: good extraction is essential to avoid condensation and mould.
Level access, wider doors and ramps
Getting in and out of the house, and moving between rooms, matters as much as the bathroom. Common adaptations include:
Level or low thresholds at the main entrance and garden doors.
Wider door openings for wheelchairs and walking frames. This may involve altering internal walls, and if a wall is load-bearing it will need a structural engineer and Building Regulations approval. See our guide to removing a load-bearing wall.
Ramps: a ramp needs to be gentle enough to use safely, with handrails and a level landing at the door. Longer rises need gentler slopes and rest landings, so space is often the limiting factor. An OT can advise on gradients for the person using it.
Paths and parking: firm, even, well-drained paths and a level parking space close to the door. Our resin driveway service can provide smooth, permeable surfaces.
On sloping Cornish sites, creating level access can mean regrading the garden or building retaining walls. Our retaining walls and sloping sites guide explains what is involved.
Stairlifts, through-floor lifts and hoists
If moving bedrooms downstairs is not practical, a stairlift or through-floor lift may help. Through-floor lifts need a suitable opening in the floor and ceiling, which is structural work. Ceiling track hoists also need a structure strong enough to carry the load, so a builder or engineer should check this before installation.
Planning and Building Regulations
Internal adaptations often do not need planning permission, but extensions, ramps that significantly raise ground levels and external changes may, particularly in conservation areas or on listed buildings. Check with Cornwall Council; our planning permission guide explains the basics.
Extensions, structural alterations, new drainage and most new bathrooms in new spaces will usually need Building Regulations approval. See our Building Regulations guide.
Funding and VAT: questions to ask
Disabled Facilities Grants (DFGs) may help towards the cost of essential adaptations for a disabled person, such as level-access showers, ramps, wider doors or stairlifts. They are means-tested for adults and the process usually includes an OT assessment. Ask Cornwall Council about eligibility and how to apply before work starts, because work carried out before approval may not be funded.
Certain building work for a disabled person, such as ramps, widening doorways and some bathroom adaptations, may also qualify for VAT relief. HMRC's guidance on VAT relief for disabled people explains the conditions.
Frequently asked questions
How long does a ground-floor bedroom and wet room extension take?
It depends on size, planning and site conditions, but allow for design and approvals as well as the build itself. A converted room is usually quicker than a new extension.
Can a wet room be built upstairs?
Often, yes, but the floor needs careful construction to create the falls and waterproofing, and the joists may need strengthening.
Do I need an occupational therapist?
For a grant, an OT assessment is usually required. Even without a grant, OT advice helps make sure the work meets real needs.
Adapting your home? Talk to us
Cornish Building Company carries out property renovations and home extensions across the whole of Cornwall. If you are planning accessible adaptations, we can talk through the building options for your home. Call us on 01208 816991 or contact us to discuss your project.
