Planning permission for a micro-distillery

Distilling spirits is general industry. A micro-distillery falls within Class B2 of the Use Classes Order, which matters because it rules out the flexibility that a brewery with a taproom sometimes enjoys and because it sets the baseline for what the environmental health team will ask about. The three issues that decide a small distillery application are vapour and odour from the still, the fire separation and storage volumes for high-strength spirit, and the noise from extraction and chilling plant.

The bonded store is a customs matter rather than a planning one, but it drives the layout, and the layout is what you are applying for.

Where distilling sits in the Use Classes Order

The Use Classes Order 1987, as amended in 2020, places general industrial processes in Class B2 and storage or distribution in Class B8. Spirit distilling involves a process that is not appropriate in a residential area as a Class E activity, so B2 is the correct description for the production element.

That has three practical consequences. A unit with a B2 planning history can take a distillery without a change of use application, which is the quickest route to occupation. A unit in Class E, including a former shop, office or light industrial unit under E(g), needs a change of use application to B2, and there is no permitted development route from E to B2. And where you want a tasting room, shop or bar, those are separate uses that need to be described and assessed in their own right rather than assumed as ancillary.

The mixed-use description is the one to get right. "Change of use to spirit distillery (Class B2) with ancillary visitor tasting room and retail sales" tells the officer what is proposed and limits the risk of a condition that bars the visitor element entirely.

Still operation, vapour and odour control

Distillation releases ethanol vapour and the aromatic compounds that give the spirit its character. In an industrial estate with no sensitive receptors nearby, this is usually straightforward. In a mixed-use building, a railway arch or a unit backing onto housing, it is the issue that takes the longest to resolve.

What a planning officer and the environmental health officer will want:

• a description of the process, batch sizes, number of runs per week and operating hours
• the extraction arrangement, including the discharge point location and height
• condenser and vapour recovery arrangements, which substantially reduce emissions to air
• odour control where mashing or fermentation takes place on site, which is often more odorous than distillation itself
• an assessment against the relevant odour guidance, scaled to the risk

An odour assessment for a small distillery in an industrial location may be a short qualitative appraisal. Where housing is close, expect to need a proper assessment using recognised methodology, with the discharge point and dispersion addressed. Our note on getting permission for a children's nursery in a house covers the comparable problem of fitting an intensive use into a sensitive setting.

Put the flue on the drawings at the start. Retrofitting a discharge point at the right height after approval often needs a fresh application.

Fire risk, spirit storage and separation

High-strength spirit is a flammable liquid, and storage volumes drive both the building regulations position and the planning layout. The planning application needs to show where the spirit safe, the receiving vessels and the bonded store sit, how they are separated from the public areas, and how the building is accessed by the fire service.

Two thresholds to be aware of, both outside planning but both shaping the scheme. Storage of dangerous substances above certain quantities engages the Control of Major Accident Hazards Regulations 2015, which for most micro-distilleries is not reached but should be checked against the actual inventory. And hazardous substances consent under the Planning (Hazardous Substances) Regulations 2015 has its own controlled quantities, which again a small operation is unlikely to exceed but which a growing one may.

Fire engineering for the building is governed by Approved Document B and, where a strategy is needed, by BS 9991 or BS 9999. A Fire Statement is required at Planning Gateway One for relevant buildings under the Building Safety Act 2022 framework and Article 9A of the Development Management Procedure Order 2015, and it must be prepared by someone with the necessary fire-engineering competence. Most micro-distilleries in existing single-storey industrial units fall outside the Gateway One trigger, but the competence point applies to any fire document you submit.

Where you are converting a building with residential above, take advice early. A distillery under flats is a materially different proposition from one in a detached shed.

Noise from plant and extraction

Noise is the most common reason an otherwise acceptable distillery application attracts conditions that hurt. The sources are the extraction fan, the chiller or glycol plant, the compressor and any bottling line.

BS 4142:2014+A1:2019 is the method, and it works by comparing the rating level of the specific sound, with corrections for tonality, impulsivity and intermittency, against the measured background sound level at the nearest noise-sensitive receptor. The key variable is background level at night, because chillers often run continuously. A unit that is fine at 2pm on an industrial estate can fail at 3am.

Commission the background survey before you specify the plant. Doing it the other way round means designing mitigation to fit a plant selection you are already committed to, which is more expensive and sometimes impossible.

Effluent and washdown drainage

Distilling produces spent wash, pot ale or stillage depending on the process, plus washdown water with a high organic load. Discharging that to the foul sewer needs the sewerage undertaker's consent under the Water Industry Act 1991, and the undertaker may set limits on volume, strength, temperature and pH, or refuse altogether.

The planning application should state the volumes, the disposal route and the consent position. Where the undertaker will not accept the load, the options are tankered removal, pre-treatment on site or an alternative route, and each has a layout consequence: a tank needs space and vehicle access, pre-treatment needs plant and possibly an environmental permit.

Also address surface water separately. Yard areas where casks and drums are handled need a sealed drainage system with an interceptor rather than a direct connection to a watercourse.

Visitor tours and retail as separate elements

Tours, tastings and a shop are usually what makes a micro-distillery viable, and they are the part most likely to be constrained by condition. Describe them precisely: numbers per tour, tours per day, opening hours, whether alcohol is consumed on the premises and whether the retail element serves passing trade.

The distinction the authority cares about is whether the visitor element is clearly subordinate to production or is in substance a bar. A tasting room serving tour participants is ancillary. A room open to the public in the evening with no tour attached is a separate drinking establishment use, which is sui generis and assessed on noise, dispersal and parking as a licensed premises would be.

Licensing runs separately under the Licensing Act 2003, with its own application, representations and conditions. A planning permission does not grant a premises licence and a licence does not authorise the planning use. Deal with both, and keep the hours consistent between them, because inconsistent hours are a common source of enforcement difficulty.

Deliveries, cask movements and access

Grain in, casks and bottles out, plus waste removal. The transport evidence should set out vehicle types, frequency, the swept path for the largest vehicle at the access and within the yard, and where loading happens relative to the site boundary and any housing.

A transport statement proportionate to the scale is normally enough for a small unit, with a parking assessment where the visitor element generates car trips. Where the unit is in a town centre or an arch with on-street servicing only, the servicing arrangement becomes the critical issue and should be agreed with the highway authority before submission. The full report index sets out what a transport statement and a noise assessment contain, and a planning statement is the document that ties the use classification, odour, noise and servicing evidence together.

Conditions on extraction, storage volumes and visitor numbers

Expect a decision notice that controls the operation rather than the building, and check each condition against your business plan before accepting it.

1. Extraction and odour abatement to be installed in accordance with an approved scheme and maintained thereafter.
2. Plant noise limited to a stated level at a defined boundary point, with a verification test after installation.
3. Hours of production, deliveries and visitor opening, often differentiated.
4. A cap on visitor numbers or tours per day where the ancillary element was a concern.
5. Maximum spirit storage volume on site.
6. No external storage of casks or drums except within an approved area.
7. A delivery and servicing arrangement in accordance with an approved plan.

The visitor cap is the one to negotiate. A condition expressed as a maximum number of visitors per day is easier to live with than one restricting tours to stated times, because it leaves scheduling flexibility. Ask for it that way round in the application rather than after approval.

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. For specialist technical reports, qualified professional input may be required. To see which documents a distillery unit is likely to need, enter your postcode on PlanScope.