Dark kitchens and delivery only food premises

A delivery only kitchen with no customers on site does not slot neatly into any use class, and that is the whole problem. Dark kitchen planning permission usually turns on a single question. Is the premises selling hot food for consumption off the premises, which has been sui generis since September 2020, or is it a food production unit that falls within Class E(g)(iii) light industrial, or within the wider Class E because the sale is made elsewhere?

There is no settled national answer. Councils have reached different conclusions on similar facts, and the practical route through is a Lawful Development Certificate or a planning application with the analysis set out in full, rather than an assumption.

Which class a delivery only kitchen falls into

The Town and Country Planning (Use Classes) Order 1987, as amended in 2020, removed the old A classes. Restaurants and cafes moved into Class E(b) as the sale of food and drink mostly for consumption on the premises. The sale of hot food for consumption off the premises became sui generis, with no class of its own.

A dark kitchen fits awkwardly because the customer never attends. Food is cooked, packed and handed to a rider, and the sale is concluded through an app. Three readings are argued:

• sui generis, on the basis that hot food is being sold for consumption off the premises and the absence of a shopfront does not change the substance of the transaction
• Class E(g)(iii), light industrial, on the basis that the premises is a food production unit whose process could be carried on in a residential area without detriment to amenity
• Class E(b), where the kitchen sits within an existing restaurant and delivery is ancillary to a genuine dine-in trade

The third is the easiest. A restaurant that adds delivery does not change use, provided the dine-in trade remains real and the delivery operation does not become the dominant activity. Where the seating is removed and the frontage papered over, the planning unit has changed and so has the use.

Where the hot food takeaway analysis bites

The strongest argument for sui generis is that the character of the activity, rather than the shopfront, defines the use. Hot food leaves the premises for consumption elsewhere. That was the test under the old A5 class and the 2020 amendment did not rewrite it.

The counter-argument is that a takeaway's planning effects come from customers arriving on foot and by car, and a dark kitchen has none of those. What it has instead is a concentration of delivery riders, extraction plant running long hours, and a servicing pattern more like a small factory.

The honest position is that the answer depends on the facts and on the authority. Where the existing use is Class E and the operator wants certainty, a Lawful Development Certificate under section 192 of the Town and Country Planning Act 1990 is the only formal route to confirm that no permission is needed. It costs a fraction of an enforcement dispute.

Intensification adds another layer. A single-brand kitchen that becomes a six-brand operation running eighteen hours a day may amount to a material change even where the original use was lawful, which is the same analysis set out in when doing more of the same needs consent.

Extraction, odour and the flue

Odour is the issue that decides most applications. Commercial cooking extraction needs a flue that discharges at a height and velocity sufficient to disperse odour away from sensitive receptors, and on a terraced high street with flats above the shops that is difficult.

The Ventilation and Extraction Statement should cover the cooking types and volumes, the canopy and filtration specification, the duct route, the termination height in relation to surrounding openings and eaves, the discharge velocity, and the maintenance regime. Environmental health officers look for a design that matches the menu. A kitchen frying at high volume needs more than the carbon filter that suits a salad operation.

Two practical points. The flue route usually crosses a rear elevation and may need the freeholder's consent as well as planning permission, and on a listed building or in a conservation area an external flue is a separate consent question in its own right.

Plant noise and the residents above

Extraction fans, refrigeration and air conditioning run when the flats above are trying to sleep. Assessment follows BS 4142:2014+A1:2019, comparing the rating level of the plant with the background sound level at the nearest window, with corrections for tonality and impulsivity.

Specify the plant before applying. An assessment based on a generic fan and then re-specified at installation is the classic route to an enforcement complaint three months after opening. Where the numbers are tight, the answers are attenuators, anti-vibration mounts, acoustic enclosures and running the plant at reduced speed overnight, and all of those need to be in the Noise Impact Assessment rather than promised later.

Riders, mopeds and the kerb

A busy delivery kitchen generates a steady pattern of riders arriving, waiting and leaving. The waiting is what neighbours complain about. Groups on the pavement, engines idling, phone screens at night.

Deal with it in the application rather than in response to an objection. Show a rider waiting area inside the premises or in a rear yard, state the number of riders expected at peak, show where mopeds and cycles park, and set out how the operator will manage the kerbside. A short servicing and delivery note carries real weight with a highway authority, particularly on a route with loading restrictions.

Hours, conditions and temporary permissions

Expect conditions restricting opening hours, plant operating hours, delivery and collection times, and sometimes the number of riders on site. Some authorities grant a temporary permission of one or two years on a first application in a sensitive location, which is a reasonable outcome when the alternative is refusal.

A temporary permission is not a soft option. The operator has to reapply with monitoring evidence, and the fit-out has to be written off if the renewal fails. Where a temporary consent is offered, ask for a longer initial period and offer a management plan with a complaints procedure instead of a short leash.

The evidence a council will ask for

For a change of use to a delivery kitchen in a high street unit, the pack usually contains a Planning Statement setting out the use class analysis, an extraction and odour statement, a plant noise assessment, elevations showing the flue, a servicing and rider management note, and a schedule of proposed hours.

The applications that fail tend to share a pattern. No use class analysis at all, an extraction design copied from a previous job, plant noise left to a condition, and no acknowledgement that people live above. The ones that succeed read as though the operator has thought about the flat above the shop, because the officer has.

PlanScope drafts documents of this kind from your site details and flags the facts it cannot verify rather than inventing them. Odour and acoustic design need input from a suitably qualified professional, so treat a draft as the starting point for that work. Enter your postcode on PlanScope to see which reports the unit is likely to need.

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.