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Changing the use of a building for care.
The building looks right, the price works, and the agent says planning will be a formality. That last part is the one to check before anything is signed, because it is the part that decides whether the deal exists at all.
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Do you need planning permission for it?
Planning and registration are two permissions, from two authorities, on two tests. Either can say no on its own. Answer for your building and your numbers, and see which of the five answers you get.
- 01The property
- 02Who is there
- 03The detail
- 04Your answer
Choose one
It depends on your address — check these
This is England only, and it is general information rather than advice on a site. Planning turns on fact and degree, and two identical services at two addresses can get different answers. Nothing in the 2026 permitted development amendments changed the residential or care use classes — the position on C2, C3 and C4 stands — but the address-specific constraints change constantly, and only the planning authority's own record settles them. Current at 4 September 2026.
The start-ups this actually covers
Typical answers for the models people ring about. Indicative only — every one of these turns on the facts of the address and how the service is really run, which is exactly why the certificate route matters.
| What they want to start | Likely class | Planning | The thing that decides it |
|---|---|---|---|
| Domiciliary care agency, office based | Commercial, E | No | Working from home is usually fine until staff and visitors arrive |
| Live-in care agency | Commercial, E | No | Care happens in the client’s home; you are running an office |
| Supported living, 3 adults, own tenancies, with care | C3(b) | Often no | Whether they genuinely live as one household |
| Supported living, 8 adults, staff on shift | C2 | Yes | Over six, and not a household |
| Children’s home, 2–3 children, shift staff | C2 | Almost always | Children plus non-resident staff is not a household, whatever the number |
| Children’s home with a permanently resident carer | C3(b) arguable | Certificate | Whether the carer genuinely lives there as part of the household |
| Supported accommodation, 16–17, support only | C4, C2 or sui generis | Grey | Support is not care, so the C3(b) route may not be open — the least settled question in the sector |
| Semi-independent, 4 adults 18+, no care | C4 HMO | Usually permitted | Whether an Article 4 direction is in force locally |
| Residential care home or nursing home | C2 | Yes | Nothing to argue — plan for it |
| Respite or short breaks with beds | C2 | Yes | Turnover defeats the household test on its own |
| Residential family centre | C2 | Yes | Assessment, staffing and turnover |
| Day centre for older or disabled people | Commercial, E | No, if already E | The building’s current lawful use, and the traffic |
| Day nursery or crèche | Commercial, E | No, if already E | Same class; conditions on the existing permission can still bite |
| Shared Lives — someone joins a carer’s family home | C3 | Usually no | It is a household, and it stays one |
| Extra care scheme, self-contained flats plus on-site staff | C3 or C2 | Grey | How much care is tied to the tenancy — take advice before design |
| Buying a closed care home to reopen | C2 already | Usually no | Whether the C2 use has been abandoned, and what the conditions say |
| Converting an office or shop to a care home | E to C2 | Yes | Prior approval gets you a dwelling, not a care home |
Three permissions, three different bodies
Planning, building control and the regulator each ask a different question, and satisfying one tells you nothing about the others.
Planning asks whether this use is acceptable in this place: neighbours, parking, the character of the area, and what the local plan says. Building control asks whether the fabric is safe and compliant for how it will now be used. The regulator asks whether a service delivered from this building can meet the standards people are entitled to.
Buildings fail on any one of the three, and the failures are not interchangeable. A property with planning permission can still be unusable because the layout cannot support the staffing model. A building that is physically perfect can be refused because the road cannot take the traffic.
So the order matters. Establish whether the use is achievable in principle before spending money on anything else. Everything downstream depends on that answer, and it is the cheapest answer to get.
Test the building first
The property check runs through whether a building can realistically hold the service you have in mind, before you are committed to it.
Three assumptions that cost people money
All three are made confidently and regularly.
"It was a care home before"
Previous use helps, but it can lapse, the type of care may differ, and standards move. A building that was compliant for its last use twenty years ago is not automatically suitable for the service you intend to run in it now.
"The agent said it is fine"
Agents are selling. Some know planning well and most do not, and none of them carry the risk if they are wrong. Nothing an agent says should survive contact with the planning authority's own view.
"We will sort it after completion"
The single most expensive assumption on this page. If permission is refused after you own the building, you own a building you cannot use for the purpose you bought it for.
The order that protects you
Four steps, cheapest first.
Ask the planning authority before you offer. Most run a pre-application service. It costs a modest fee and a few weeks, and it is the only way to hear the authority's own view rather than somebody's opinion about it.
Get a surveyor who knows care buildings. Not a general residential survey. Someone who will look at circulation, door widths, bathroom provision, fire strategy and plant, and tell you what conversion would actually involve.
Test the layout against your staffing model. A building that needs an extra person on every shift because of its shape has a permanent cost attached to it. That cost belongs in the purchase decision, not in year two.
Make the offer conditional. Subject to planning, subject to survey, subject to whatever else is genuinely load-bearing. A seller who refuses any condition is telling you something.
Budget for the gap between exchange and opening. Permissions, works, recruitment and registration all take longer than planned and none of them generate income. Running out of money while technically doing everything right is the most common way these projects fail.
Planning categories and processes are not stated here
Use classes, permitted development rights, application routes and fees change, differ by nation and are interpreted locally. This guide names none of them, and no summary should be relied on in place of advice on your own site.
Take planning advice from a planning consultant or solicitor who knows the local authority, and take the authority's own view in writing wherever you can get it.
Ring us before it is urgent. It is a much shorter conversation.
Thirty minutes, no charge, no obligation. If you have found a building and are about to offer, that is exactly the right moment to call rather than after.
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