Farm shops and the proportion of own produce

Selling your own produce at the farm gate is normally treated as part of the agricultural use and needs no permission. A farm shop change of use arises the moment bought-in goods become more than an incidental part of what is on the shelves, because at that point a retail use has started and retail is Class E(a) under the Use Classes Order 1987 as amended. There is no statutory percentage that marks the line. What there is, in practice, is a planning judgement about the scale and character of the retailing relative to the farming, and a condition that the authority will want to impose to hold the position it has accepted.

Get that condition drafted in a form you can live with for twenty years. That is the real task.

When selling produce is ancillary to farming

Use of land for agriculture is not development under section 55(2)(e) of the Town and Country Planning Act 1990. Selling the output of the holding has long been read as part of that use, on the same logic that lets a dairy sell milk from the yard.

The ancillary question is judged across the planning unit, which is normally the whole holding rather than the shop building. Factors that matter: floorspace given to sales against floorspace given to production and storage, the proportion of goods grown or reared on the holding, staffing, opening hours, the amount of parking, whether the premises are advertised to passing trade, and the volume of customer traffic on the access.

A trestle table of surplus vegetables beside a track with an honesty box is clearly ancillary. A converted barn with a chiller aisle, three staff and a car park for twenty cars is a shop that happens to sit on a farm. Everything in between is argued.

The point at which retail becomes the primary use

A material change of use has occurred when the retailing is no longer subordinate. Two things usually tip it.

The first is sourcing. Once a meaningful share of turnover comes from goods bought in for resale, the business is trading as a shop. Butchery and bakery lines bought from wholesalers are the usual route, because they are what customers expect and what makes a visit worthwhile.

The second is the buildings. Converting a barn, forming a shopfront, installing refrigeration and laying a car park are all physical works that evidence a change in the character of the use, and a change of use plus building works is far harder to characterise as ancillary. Where the shop occupies part of a building that also has other activities in it, the question of whether it forms a separate planning unit arises in much the same way as it does for upper floors above a shop.

If the shop has been trading for years without permission, a certificate of lawfulness of existing use under section 191 of the 1990 Act is the route to certainty, and it needs sales records and photographs covering the relevant period, not recollection.

Conditions limiting the proportion of bought-in goods

Most rural authorities will grant a farm shop and then restrict it. The common forms are a condition tying sales to produce grown or reared on the holding, a condition capping the floorspace given to bought-in goods, or a condition capping bought-in goods as a share of turnover.

Those three are not equally sensible. A turnover condition is hard to monitor and hard to enforce, because the authority has to audit your accounts to establish a breach. A floorspace condition is measurable on a site visit. A condition limited to produce from the holding alone is often simply unworkable for a shop that needs a year-round offer.

All conditions must meet the six tests in the planning practice guidance on the use of conditions: necessary, relevant to planning, relevant to the development permitted, enforceable, precise and reasonable in all other respects. A condition you cannot comply with in January fails the last of those, and it is better to argue the point at application stage than to live in breach.

Offer the wording yourself. A condition defining a shop as one where a stated proportion of net sales floorspace is given to produce grown, reared or processed on a defined holding, with a plan showing that holding, is precise, enforceable and something you can actually operate. Put the draft in the Planning Statement and explain why it meets the six tests.

Cafes and seating areas within a farm shop

A cafe is Class E(b), the sale of food and drink for consumption on the premises. A handful of seats serving coffee to shop customers can be ancillary to the shop. A 60 cover tearoom with its own entrance, its own hours and customers who never enter the shop is a separate use.

Hot food for consumption off the premises is sui generis and sits outside Class E entirely, so a farm shop that starts selling hot pies to take away has moved beyond what its permission allows.

Kitchen extraction is the practical constraint. Any commercial cooking generates odour and noise, and in a rural setting the nearest dwelling is often the farmhouse or a converted cottage within the same yard. Authorities ask for a Ventilation and Extraction Statement setting out the flue route, termination height, filtration and the noise level of the fan at the nearest window. Deal with it in the application rather than at the discharge of conditions stage, because a flue designed after the roof is finished is the one that ends up terminating in the wrong place.

Parking, access and signage in the countryside

Farm shops generate trips that the original farm access was never designed for. Expect the highway authority to look at visibility in both directions, the geometry of the bellmouth, surfacing of the first few metres so mud is not carried onto the carriageway, and whether vehicles can turn and leave in forward gear.

A Transport Statement is usually proportionate for a shop of this scale rather than a full assessment, and it should cover the trip generation, the parking provision including a disabled bay and cycle parking, delivery arrangements and the seasonal peak. Christmas trees and pick-your-own both produce traffic on a handful of days that bears no relation to the annual average, and it is better to describe that honestly with a management plan than to present an average and be caught out.

Signs need separate consent. Advertisements are controlled under the Town and Country Planning (Control of Advertisements) (England) Regulations 2007, and the roadside sign that brings in passing trade is often the element most likely to be refused in open countryside.

Evidence of turnover and sourcing

Build the record from the start. Keep sales data split between own produce and bought-in goods, keep supplier invoices, keep a plan of the holding with the cropped and grazed areas marked, and keep a note of staff hours split between farming and retailing.

Two situations make that record valuable. If the authority alleges a breach of a sourcing condition, the burden of showing compliance falls on you in practice even where it does not in law. And if you later apply to vary the condition because the business has changed, a five year run of figures is the only thing that will persuade an officer the original restriction has become unreasonable.

Describing the use in the application

Write the description of development so it matches what you intend to do. "Change of use of agricultural building to farm shop (Class E(a)) with ancillary cafe seating" tells the officer what is proposed and sets up the condition. "Change of use to retail" invites a permission far broader than the authority wants to give and will be narrowed by condition anyway, probably in terms you had no hand in.

And say in the supporting statement what you are not doing. A shop that will not sell hot takeaway food, will not open before 8am and will not operate a separate restaurant is easier to grant than one that is silent on all three.

Enter your postcode on PlanScope to see which reports a farm shop application 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.