Micro-breweries and taprooms and their use class

Brewing beer is an industrial process, and serving it on the premises is a drinking establishment. Those are two different planning uses, and since the Use Classes Order was amended in 2020 a drinking establishment has been sui generis, which means any change to or from it needs planning permission. A brewery with a taproom is therefore either a mixed use or a single use with an ancillary element, and which one you are depends on the proportions.

Get that wrong at the application stage and you end up with a permission for a brewery and an enforcement letter about the bar.

Brewing as an industrial use

Commercial brewing normally falls within Class B2, general industrial. There is a real argument, on a small enough operation, that it falls within Class E(g)(iii), light industrial, which covers industrial processes that can be carried out in any residential area without detriment to its amenity.

That distinction is worth taking seriously, because it changes everything downstream. A light industrial use sits within Class E, so movement to and from other Class E uses does not need permission. A general industrial use does not.

Where the brewery is small, electrically heated, with no significant external plant and no trade effluent issue beyond a domestic-scale connection, the light industrial argument can be made. Where there is a gas-fired copper, a hop store, a CO2 vent, chilled liquor tanks outside and deliveries by rigid lorry, it is B2 and arguing otherwise wastes everyone's time.

The test is amenity, not floor area. Set it out on the application form and in the supporting statement rather than leaving the officer to guess, and expect environmental health to be consulted either way.

Where a taproom creates a drinking establishment

Since 1 September 2020, drinking establishments and drinking establishments with expanded food provision have sat outside the use classes altogether. They are sui generis. A café or restaurant, where food consumed on the premises is the primary offer, remains within Class E.

So a taproom that sells pints to the public for consumption on site is a drinking establishment, whatever it is called on the sign. A brewery shop selling bottles and cans to take away is closer to retail, which is within Class E. A tasting room open on Saturdays for pre-booked tours, run as part of the production business, may be ancillary to the brewery rather than a separate use.

The line between ancillary and separate is drawn by looking at the planning unit as a whole and asking whether the second activity has become a use in its own right. Opening hours independent of production, a dedicated entrance, external seating, live music and advertising to the general public all push it across the line.

Mixed use and the proportions that matter

Where both activities are substantial, the correct description is a mixed use, and that is itself sui generis. Describe it accurately on the application: for example, brewery (Class B2) with ancillary taproom, or mixed use brewery and drinking establishment.

The evidence officers look for is quantitative. Floor area given to each activity, opening hours for each, expected customer numbers at peak, staff numbers, and production volume. Provide it in a table in the supporting statement rather than making them ask.

Be careful with conditions. A permission for a mixed use can be conditioned to fix the proportions, and a condition limiting the taproom floor area or the hours is normal and usually acceptable. A condition tying the taproom's existence to the brewery's operation is also common, and that one has consequences if the brewing side ever stops. Conditions that remove Class E flexibility explains how restrictive conditions survive later changes in the Order.

Noise, odour and effluent

Three technical objections account for most refusals, and all three are answerable with evidence.

Plant noise is assessed against the British Standard method for rating industrial and commercial sound affecting residential premises, comparing the rating level against the background sound level. Chillers, glycol plant, extraction and cellar cooling are the culprits. A Noise Impact Assessment should cover them, with a separate qualitative section on customer noise, arrivals and departures and any external drinking area, because patron noise is outside the scope of that standard.

Odour from the boil is a genuine issue in a mixed-use street, and it is intermittent, which makes it harder to defend. An Odour Assessment following the recognised air quality institute guidance, with a stack height and discharge velocity that carry the plume clear of nearby windows, is the usual answer. Where food is served, kitchen extraction needs its own treatment in a Ventilation and Extraction Statement.

Trade effluent is the one people forget. Brewery waste water has a high organic load, and discharging it to the public sewer requires consent from the water undertaker under water industry legislation. That is a separate consent from planning permission, and the council may still ask how it will be managed.

Hours and outdoor drinking

Conditions on hours are where the negotiation happens. Ask for what you need and justify it by reference to the surrounding uses and the existing background noise climate, not by reference to what a similar business does elsewhere.

External drinking areas attract tighter conditions than internal ones, often closing several hours earlier. If the yard is part of the business model, design it into the application from the start with a boundary treatment, a management plan covering last orders outside, glass collection and smoking, and a realistic capacity figure.

The premises licence under the licensing legislation is a separate regime with a separate application and different considerations. A licence does not authorise a use that planning does not permit, and a planning permission does not authorise sales that the licence does not cover. Run both in parallel and keep the hours consistent between them.

Industrial estate policy constraints

Many micro-breweries sit on employment land, and that brings a policy question the applicant rarely anticipates. Local plans protect designated employment areas from uses that undermine their function, and a public-facing taproom drawing evening car trips into a trading estate can be resisted on those grounds.

The counter-argument is that the primary use remains industrial, that the taproom supports the viability of a manufacturing business, and that evening activity uses parking already provided for daytime industrial operations. Support it with the parking and servicing information rather than asserting it.

Where the site is not on employment land, the opposite risk applies: residential neighbours, and a much sharper noise and odour case to make.

Structuring the application

1. Describe the development precisely, naming the use class for each element and stating which is primary.
2. Submit a floor plan with areas annotated by activity, and a schedule of hours for each.
3. Include the noise assessment, the odour assessment and any extraction details as separate documents rather than paragraphs.
4. Set out the servicing arrangement: delivery vehicle size, frequency, times, and where it stands.
5. Offer a management plan covering external areas, waste, glass and dispersal.
6. Address the employment land or residential amenity policy directly, whichever applies.

A Planning Statement that names the use classes and explains the primary and ancillary relationship in its first two pages saves a fortnight of correspondence.

This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it, and remember that a Lawful Development Certificate is the only formal way to confirm that an existing or proposed use is lawful.