Farm shop: Class E, F2 or sui generis

A farm shop selling only what the holding produces is usually ancillary to the agricultural use and needs no permission. A farm shop selling mostly bought-in goods is a retail use in its own right, and that is a material change of use. The farm shop use class question therefore has three possible answers, and which one applies turns mainly on the proportion of goods produced on the holding.

The three are: ancillary to agriculture and so not development at all; Class E(a) retail; or, in narrow circumstances, Class F2(a), the local community shop category introduced in 2020. A fourth outcome, sui generis, arrives once you add hot food to take away.

When a farm shop is ancillary to the holding

Section 55 of the Town and Country Planning Act 1990 makes development the carrying out of building works or the making of a material change in the use of land. Selling your own produce from a building on your own farm is part of the agricultural operation, in the same way as grading, packing or storing it.

That analysis holds while the selling stays subordinate to the farming. A trestle table of potatoes at the gate is plainly ancillary. A converted barn with a car park, a till system, refrigerated display and staff is harder to describe that way, even where every item on the shelf was grown a field away.

Two factors push a shop out of ancillary status even without imported goods. Scale, where the retail floorspace and the traffic it generates become a use in their own right rather than an adjunct to farming. And permanence of infrastructure, where a purpose-built retail unit signals a separate planning unit.

The building matters too. Agricultural permitted development rights do not extend to buildings used for retail, so a barn erected under those rights and then fitted out as a shop raises a question about the original notification as well as about the use.

The point it becomes a retail use

There is no percentage in the legislation. What exists is a well-established approach in practice: the higher the proportion of goods brought in from elsewhere, the more likely the use has become retail.

Authorities commonly assess this by reference to the proportion of goods, measured by value or by shelf space, produced on the holding. A shop where the clear majority of sales are of the farm's own produce, with a small range of complementary items, is usually treated as ancillary. Once bought-in goods dominate, the shop is a retail use whatever the sign over the door says.

Assemble the evidence before you need it. Sales records split between own produce and bought-in goods, a stock list, a plan showing shelf allocation, and a note of what is grown or reared on the holding and when. A council investigating a complaint will ask for exactly that, and reconstructing it after the fact is difficult.

Where the shop has grown gradually over years, the lawful use may already have changed without anyone applying. A lawful development certificate under section 191 is the way to establish what the lawful use actually is.

Where the class boundaries fall

Assuming the use is retail rather than ancillary, which class applies affects what can change later without permission.

Class F2(a) is the one applicants misread. It was created for the isolated, low-density village shop, and it carries both a floorspace ceiling and a requirement that there is no other such facility within 1,000 metres. A farm shop on a main road two fields from a village with a convenience store does not qualify.

The difference matters on exit. A shop in Class E can become a café, a nursery or an office without permission. A shop in F2 cannot move into E at all, because the 2020 order deliberately kept community uses out of the flexible class.

Adding a café and what that changes

A café is Class E(b), so where the shop is already in Class E the addition of a café area is not, in itself, a change of use.

Three things complicate that. If the café becomes the dominant use of the building, the character of the use has changed and the council may take the view that permission was needed. If the café serves hot food principally to take away, that element is sui generis. And if a new building or an extension houses the café, the works are development regardless of the use classes position.

Practically, a café brings the issues a shop does not: cooking extraction and odour, plant noise, foul drainage capacity, grease management, refuse, and a substantially longer dwell time in the car park. On a rural site with a private treatment plant, drainage capacity is often the binding constraint rather than planning policy.

Where the shop is ancillary rather than in Class E, adding a café is the point at which the whole operation usually stops being agricultural.

Parking, access and the highway view

Highway officers look at farm shops closely, because the combination of a rural road, a high speed limit and a right turn into a car park is a recognised risk.

Expect questions on visibility splays at the access, measured to the current standard for the road's speed, on whether the access is wide enough for two vehicles to pass, on parking provision including coach or trailer space if you expect it, and on where deliveries turn. A Transport Statement is normally proportionate for a shop of this scale and should cover the seasonal peak rather than an average week, because a pick-your-own weekend in August is the condition that matters.

Roadside signage is a separate consent. Advertisements on the highway verge or on the boundary frequently need advertisement consent and, where they are on highway land, the highway authority's agreement.

If the site is or was in another use, the general approach to evidencing a change is set out in the agricultural to equestrian change of use article, which deals with the same ancillary question in a different setting.

Conditions controlling goods and floorspace

When permission is granted for a farm shop, conditions are the norm and they tend to be tight.

The common ones restrict the proportion of goods sold that must be produced on the holding, cap the retail floorspace, tie the shop's occupation to the agricultural unit, limit opening hours, and remove permitted development rights for extensions. Some require an annual record of sales to be made available to the authority.

Read them before you accept the permission. A condition requiring a stated proportion of goods to originate from the holding is enforceable, and a bad harvest is not a defence. If the proportion is unrealistic, negotiate it at the application stage or seek to vary it later under section 73, which is a full planning decision that can be refused. How conditions of this kind bind a building is covered in conditions restricting use class or occupier.

A Planning Statement that sets out the farming operation, the produce, the proportion sold from the holding and the highway position gives the officer the structure of their report.

Enter your postcode on PlanScope to see which documents a farm diversification application is likely to need.

This is general guidance, not legal advice. A lawful development certificate is the only formal way to confirm that a use is lawful, so 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.