C1, C3 and serviced accommodation: which class applies

Serviced accommodation use class questions come down to one distinction. Class C1 covers hotels, boarding houses and guest houses where no substantial element of care is provided. Class C3 covers dwellinghouses occupied as a single household. A serviced apartment block with a reception desk, daily housekeeping and guests who never acquire security of tenure is generally C1. A flat let for a fortnight at a time to holidaymakers, with keys in a lockbox and no services, is a harder question that turns on fact and degree.

Getting the classification wrong is expensive in both directions. Operating a C3 flat as short-term accommodation without permission invites enforcement. Applying for C1 when the use is really C3 attracts policy tests about the loss of housing that need not have applied at all.

What Class C1 covers and where it stops

Class C1 is defined as use as a hotel, boarding house or guest house where no significant element of care is provided. Three features tend to appear together in a genuine C1 operation.

Occupation is transient. Guests stay for days or a few weeks, not months, and they have no security of tenure. Services are provided as part of the letting: reception or a managed check-in, linen and housekeeping, and often food. And the building is managed as a single operation rather than as a set of independent homes.

Where all three are present, C1 is straightforward, and an aparthotel with self-contained units and a staffed lobby will normally fall inside it. Where the services fall away, the classification becomes arguable, and some authorities treat serviced apartments without any on-site management as sui generis rather than C1. That is a real divergence of practice, and it is worth checking how your authority has treated comparable schemes before you settle on a description of development.

Care is the boundary on the other side. Once a substantial element of care is provided, the use moves into Class C2, which is a different policy conversation entirely.

What Class C3 covers and the single household test

Class C3 covers use as a dwellinghouse by a single person or by people living together as a single household, and it extends to small groups where care is provided and to other small groups living together as a single household, in each case up to six residents.

The phrase that does the work is single household. It implies shared living, some communal arrangement, and a degree of permanence. A family is the obvious case. A group of friends sharing on one joint tenancy can be. Six unrelated people on separate agreements sharing a kitchen is not, and that arrangement falls into Class C4 as a house in multiple occupation, which brings Article 4 directions into play in many towns.

A dwelling let for short stays is still physically a dwelling, which is why the argument is never about the building. It is about the pattern of occupation over time.

Serviced apartments and aparthotels in practice

Officers assess these by looking at how the operation actually runs rather than at the marketing.

The features that push a scheme towards C1 are a reception or managed arrival, cleaning during the stay rather than only between stays, a maximum length of stay written into the booking terms, no cooking facilities or only limited ones, a single operator holding the whole building, and business rates rather than council tax.

The features that pull it back towards C3 are self-contained units with full kitchens, individual leases or sales, separate front doors from the street, stays measured in months, and occupiers who register on the electoral roll.

Mixed schemes are common and awkward. A building with 20 apartments where 6 are let long term and 14 are serviced is likely to need a description of development covering both, and the authority may want a condition tying the split. Draft that condition yourself, because a condition drafted in a hurry by a case officer at committee tends to be less workable than one you have thought about.

Short term letting and the material change of use question

Letting a house or flat for short periods does not automatically need planning permission. The test is whether there has been a material change of use, judged as a matter of fact and degree.

The factors that matter are the frequency and duration of lettings, the number of separate occupations over a year, the intensity of coming and going, the effect on neighbours through noise and refuse, and whether the property is still used as a home at all between lettings. A householder letting a spare room a few weekends a year has not changed the use. A flat let every weekend of the year to different parties, never occupied by an owner, and managed as a business, may well have.

In Greater London a specific statutory rule applies. Short-term letting of residential premises is treated as a material change of use once it exceeds 90 nights in a calendar year, under long-standing London-specific legislation as amended in 2015. That is a hard line rather than a matter of degree, and it applies only in London.

A separate reform has been announced for England involving a registration scheme and a distinct use class for short-term lets. As at the date of this article, the position needs checking against the current legislation before relying on it, because an announcement and a change in the law are different things. The planning law timeline is the place to follow it.

Evidence of the pattern of occupation

Whichever way you are arguing, the evidence is documentary and dull.

Booking records showing dates, lengths of stay and the number of separate parties over a full year. Cleaning and linen invoices, which distinguish a serviced operation from a bare letting. Business rates or council tax records. Utility consumption patterns. Insurance documents describing the use. Staff rotas where there is on-site management. Photographs of the reception area, if there is one.

Councils gather the same material from the other direction: listings, review dates on booking platforms, neighbour diaries of arrivals, and refuse presentation. Assume the enforcement officer has looked at the listing history before they knock.

Where you are regularising an established use, the evidence for a certificate of lawfulness has to cover the full period continuously, and a gap in the record is usually fatal to the claim.

Conditions restricting occupancy periods

Conditions are how councils manage the boundary between visitor accommodation and housing, and they are worth negotiating rather than accepting.

Common forms include a maximum length of continuous stay by any one occupier, often expressed in weeks, a requirement that units are not occupied as a sole or main residence, a requirement to keep a register of occupiers and make it available to the council, and a restriction preventing the units being sold off individually. Each of these has a purpose, and each has a cost to the operator.

The register condition is the one to read carefully. A register that records names and addresses raises data questions, and a condition requiring it to be produced on demand should say to whom and for what purpose.

What to submit when regularising an existing use

For an application to regularise or establish serviced accommodation, expect to provide a description of development that names the class you are seeking, a management plan covering arrivals, cleaning, waste, noise and a point of contact for neighbours, evidence of the pattern of occupation, and a Planning Statement addressing the loss of housing where the units were previously C3.

Where the building is in a residential street, a Noise Impact Assessment is sometimes requested, though a management plan with a named contact usually does more to resolve neighbour concerns than an acoustic survey does. Where parking demand changes, a short Transport Statement helps.

Talk to the enforcement team before you apply if there is a live complaint. An application submitted after an enforcement notice is served is assessed in a much colder atmosphere than one submitted before.

This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.