What is the 7 year rule for farmers?

The seven year rule farmers ask about is an inheritance tax rule, not a planning one, and it usually means one of two things. The first is the ownership condition for Agricultural Property Relief: land occupied by the owner for agricultural purposes generally needs two years, while land owned by one person and occupied by someone else, such as a tenant, generally needs seven. The second is the seven year survival period for a lifetime gift to fall out of the estate. Both matter to diversification, because moving land or buildings out of agricultural use can change whether the relief applies at all. HMRC publishes the conditions on gov.uk. Take advice from your accountant and a solicitor before you rely on any of it.

What is the most profitable thing to farm in the UK?

There is no reliable single answer, and any list that gives you one is guessing. Profitability varies by soil, climate, scale, contract, capital position and the year, and high margin enterprises are usually high margin because they are hard, risky or capital hungry. The nationally representative source is Defra's Farm Business Income statistics, which break results down by farm type and separate income from agriculture, from agri-environment schemes, from diversification and from basic payments. Read the current edition for your farm type rather than a blog list, and note how large the non agricultural share of income has become on many farms.

What is the most profitable item to farm?

The question usually produces a list of high value niches: saffron, truffles, asparagus, medicinal herbs, micro leaves, alpacas. Each has real examples behind it and each has a reason it has not scaled, normally labour, establishment time, market depth or the fact that success attracts competitors quickly. The safer framing is which enterprise best uses an asset you already hold and cannot easily sell: a building, a road frontage, a skill, a licence, a roof. That framing tends to produce more durable answers than a ranking of crops.

Do I need planning permission to diversify a farm?

Usually yes for a change of use, and sometimes no for the building work itself. Permitted development rights in the General Permitted Development Order cover agricultural buildings and some conversions, including Class R for changing agricultural buildings to a flexible commercial use and Class Q for conversion to dwellings, both with conditions and prior approval. A farm shop, a campsite, an events business or a holiday let will normally need express permission, and highways, parking, drainage and neighbour amenity are where applications get difficult. Solar on a farm building often falls inside permitted development under Part 14. Check with the local planning authority before you commit.

Does diversification affect farm subsidy or agricultural relief?

It can, in both directions, which is why the tax conversation belongs at the start rather than at the end. Taking land or buildings out of agricultural use can affect eligibility for agri-environment schemes and can change how inheritance tax reliefs apply, since Agricultural Property Relief attaches to agricultural use and a diversified trade may depend on Business Property Relief instead. On farm generation used by the farm itself is generally easier on this point than a commercial letting, because the building stays in agricultural use. None of that is advice. Ask your accountant about your own holding before you spend anything.

Diversifying a farm: how the options compare on capital, labour and planning

Most farm diversification lists rank ideas by how interesting they sound. This one ranks them by what they cost in capital, in labour and in planning risk, because those are the three things farm businesses are actually short of. Farmers arrive at this page looking for new income streams, and the opportunities that survive contact with a working farm are fewer than the lists suggest. We arrange solar on farm buildings, so we have an interest in one of these options and we will say plainly where it is the wrong answer.

Contents

Farm diversification means earning from the holding rather than farming it harder

Farm diversification is the practice of generating income from a farm's land, buildings, location or skills through activity outside conventional agricultural production.

That definition is wider than it first looks. A farm shop is diversification and so is letting a redundant grain store for storage, planting woodland, opening a campsite, running a contract fencing business, or putting solar panels on a roof. What they share is that the return comes from an asset the farm already owns rather than from another hectare of the same crop.

The reason so many farmers explore it is structural. Basic payments are ending in England and being replaced by schemes that pay for actions rather than for area, input costs have moved faster than farmgate prices, and weather volatility has made single enterprise farm businesses fragile. Diversification spreads that risk across several income streams. However, it does not remove the risk, and a second business with its own exposures is still a second business, even when it sits on land you already own.

The three questions that decide which option suits a farm are always the same. How much capital does it need before it earns anything? How much labour does it need every week, forever? And how much planning risk sits between the idea and the income? Rank any list of farm diversification ideas against those three and it reorders itself quickly. Farms that diversify well tend to be the ones that answered those questions before they started, and research on farm business performance keeps pointing at the same conclusion.

SOURCE

Defra, Farm Business Income statistics, which report income by farm type and separate agriculture, agri-environment schemes, diversification and basic payments. Checked September 2026.

SEE ALSO

What a farm building roof can carry

What are the four main types of diversification?

Business strategy divides diversification into four types, horizontal, vertical, concentric and conglomerate, and each one maps onto a recognisable group of farm diversification ideas.

Horizontal. Something new for the customers you already have. A farm shop selling your own produce alongside a neighbour's, or adding boxes and online ordering to an existing gate sale.
Vertical. Taking a step up or down the chain. Milling your own grain, butchering your own livestock, pressing your own juice, packing instead of selling in bulk.
Concentric. A related market served with the same assets and skills. Contracting for neighbours, letting storage, woodland, and renewable energy on the buildings.
Conglomerate. Something unrelated to farming. A wedding venue, a wedding photographer's studio in a converted barn, self storage as a standalone business.

The further you move down that list, the more the new venture depends on skills the farm business does not currently have. Horizontal and concentric opportunities suit most farms best, because they use what is already there. That is not an argument against it. It is an argument for being honest about who is going to run it, because a conglomerate diversification run part time by someone who is also calving usually fails for reasons that have nothing to do with the idea.

The options, ranked by what they cost you

The diversification options farms actually run

The popular options divide cleanly into those that need continuous labour and those that need almost none, and that division predicts which ones survive a busy season.

Agritourism, glamping and holiday lets

Agritourism is the most visible group and the most demanding. Glamping, shepherd's huts, campsites, farm stays and open days all convert location and character into revenue, and in the right place the margins are genuinely good. Agritourism is also the group farmers most often name first when asked about diversification. They are also seasonal, reputation driven and relentless: bookings, cleaning, complaints, insurance, licensing and reviews do not pause for harvest. Planning is often contested, because neighbours notice tourism in a way they do not notice a grain store.

Farm shop, box schemes and selling online

A farm shop captures retail margin on your own produce and on local lines from other producers. It needs footfall, parking, highways consent, staff and retail skills, and the online side of it is its own business: a shop that sells online well is running two operations rather than one. Many farms find the online channel outgrows the physical shop, and many find the opposite. The variable is whoever is running it.

Letting buildings, storage and workspace

Letting redundant buildings for storage, workshops or light commercial use is the quiet option that supports a great many farms, and it produces some of the steadiest income streams available to farm businesses. Capital is low if the building is sound, labour is close to nil once a tenant is in, and the income is contracted rather than weather dependent. Class R of the General Permitted Development Order allows a flexible commercial use for some agricultural buildings subject to prior approval, which shortens the planning route. Note that taking a building out of agricultural use has tax consequences worth checking first.

Alternative crops, livestock and contracting

Alternative enterprises keep you in farming: vineyards, soft fruit, alpacas, rare breeds, medicinal herbs, contracting for neighbouring farms. They use skills you already have, which is their advantage, and they carry market risk directly, which is their disadvantage. This group is also where the most popular internet lists concentrate, and where the gap between an article and a business plan is widest.

Woodland, natural capital and public goods

Planting, natural capital and agri-environment agreements pay for outcomes rather than output. Establishment is often grant aided, ongoing labour is low, and the horizons are long. In England the England Woodland Creation Offer is the main planting route, and Farming in Protected Landscapes funds projects inside National Parks and National Landscapes. Biodiversity net gain units are a newer market and the advice on them is still maturing.

FIG. 1 Farm diversification options by capital, labour and planning risk

Option	Capital	Labour	Planning	The point to watch
Agritourism and glamping	Medium to high	High and continuous	Usually full permission, often contested	Revenue is seasonal and reputation driven
Farm shop and online sales	Medium	High, plus retail skills	Full permission, plus highways and parking	Margin depends on footfall and on the online side working
Letting buildings and storage	Low to medium	Low once let	Class R or full permission for change of use	The closest competitor to energy on a labour basis
Equine, events and education	Medium	High	Full permission, licensing, insurance	People on the holding changes the risk profile
Alternative crops and livestock	Low to medium	High, and it is still farming	Often none, but check the buildings	Market risk sits with you rather than with a tenant
Woodland and natural capital	Low, often grant aided	Low after establishment	Grant scheme rules rather than planning	Long horizons; the England Woodland Creation Offer is the route in England
Renewable energy on buildings	Medium	Effectively none	Often permitted development on a farm roof	Saves cost rather than earning revenue, which changes the tax

No revenue figures are given, because returns on every line here depend on location, scale and who runs it. The three columns that are comparable across options are what each needs from you before it earns anything. Source: Compiled from Defra scheme guidance, the Town and Country Planning (General Permitted Development) (England) Order 2015 and published farm business research. Checked September 2026

Why renewable energy behaves differently from the rest

On farm generation reduces a cost rather than creating a revenue line, and it needs no ongoing labour once it is commissioned.

That is the whole of its case, and it is worth being precise about it. A glamping site earns money and consumes time every week of the season. A farm shop earns money and consumes time every day. Solar on a farm building consumes a few hours a year: a visual check, a clean where the site needs it, an inverter inspection. There is no customer, no rota, no reviews and no seasonal peak. For farmers short of people rather than short of ideas, that is the distinguishing feature, and it is why generation ranks well against options that look more exciting on paper.

The economics follow from self-consumption. A unit generated and used on the holding displaces the full price you pay to import, while a unit exported earns whatever the supplier's tariff is, which is much less. So the enterprises that suit solar best are the ones with a large daytime electrical load: grain drying and store ventilation, refrigeration and cold store, milking and milk cooling, poultry and pig ventilation, packing and grading lines, and water pumping. Farms with none of those export most of what they make, however, and the case weakens accordingly.

There is also a planning advantage. Solar panels on a farm building frequently fall inside permitted development under Part 14 of the General Permitted Development Order, subject to conditions, where a campsite or a farm shop needs an express planning permission that a neighbour can object to. Fewer things between the decision and the income is worth something on its own.

THE TEST

What share of generation the farm consumes rather than exports. That single proportion decides the case, not the size of the roof.

SEE ALSO

Capital cost and payback, measured

SEE ALSO

A first look at what a roof would carry

ENERGY IS THE RIGHT FIRST MOVE IF

The farm already carries a large daytime electricity load: grain drying, refrigeration, milking, ventilation or packing
You have south facing or east to west roof area on buildings in sound condition
You have no spare labour, which rules out most retail and tourism ideas
You want the payback modelled before you spend, rather than after you open

SOMETHING ELSE COMES FIRST IF

The holding uses very little electricity, because generation you cannot use is worth far less
The buildings need re-roofing anyway, in which case sequence the roof and the array together
You need new income rather than a lower cost base, which is a different financial problem
The real asset is the location: a road frontage, a view or a village edge that retail or tourism would monetise

What solar does not solve

Generation lowers the electricity cost of a farm business and does nothing about any other line on the account.

It does not replace lost basic payments, it does not create new income streams the way a letting or a holiday cottage does, and it does not help farmers whose problem is revenue rather than cost. It does nothing for diesel, for heat from oil, LPG or biomass, or for fertiliser. It will not rescue a business that is loss making before the electricity bill, and a scheme that only works alongside a grant that does not exist is not a scheme.

There is a second honest point, and it is the one this page exists to make. Leasing fields to a solar developer is not the same business as generating for your own use. A land lease is a property transaction: a developer takes a long lease, builds and operates at its own cost, and pays rent, with an option agreement, a planning process and a counterparty who will not be the same company in twenty years. Generating for the farm is an energy project you own. They involve different advisers, different documents and different risks, and they should not be compared as though they were two versions of the same idea.

We arrange rooftop and on farm generation for a farm's own consumption. We do not broker land to developers. Where a land lease or an operational asset is what you are looking at, our sibling site solarfarmsforsale.co.uk covers solar land and operational assets, and our agricultural land page sets out the planning and lease questions to settle first.

NOTE

Diversification that adds revenue and diversification that removes cost are different financial problems. A farm business short of cash flow usually needs the first.

Farm diversification grants, and where to check what is open

Grants for farm diversification in England are administered through several separate Defra and government schemes with their own windows, and none of them is a general diversification fund.

The honest position is that support is narrower and more specific than the phrase farm diversification grants suggests, and windows open and close faster than any website can track. Farmers researching opportunities here should treat every summary, including this one, as a pointer to the scheme page rather than a substitute for it. What follows is where to look rather than what is open today.

Farming Investment Fund. Defra's productivity funding, including the Improving Farm Productivity grant, which has in past rounds covered rooftop solar equipment for a farm's own use, and the Farming Equipment and Technology Fund for smaller items.
Farming in Protected Landscapes. For farmers and land managers inside National Parks and National Landscapes in England, funding projects under climate, nature, people and place.
England Woodland Creation Offer. The Forestry Commission's planting scheme, with capital and maintenance elements over a long term agreement.
Rural England Prosperity Fund. Delivered through local authorities for rural business and community projects, with local criteria that differ area by area.
Devolved equivalents. Scotland, Wales and Northern Ireland run separate programmes through the Scottish Government, the Welsh Government and DAERA, and the English scheme names do not apply.

Two practical notes. The gov.uk tool find funding to help your business become greener filters by nation, sector and size and is kept current in a way that commercial grant round up pages are not, checked September 2026. And most grants pay a share of eligible costs against a specification, so a costed scheme has to exist before the window opens. That is usually what decides whether a farm applies in time. Our grants page goes through the energy schemes in detail.

Cost the energy option properly before you rank it

Send the postcode and the buildings you would consider. We come back with what those roofs can carry, what they would generate against your consumption, and what it costs, so energy can be compared against the other ideas on the same basis.

No survey fee and no obligation to proceed.

Questions about diversifying a farm

What is the 7 year rule for farmers?: The seven year rule farmers ask about is an inheritance tax rule, not a planning one, and it usually means one of two things. The first is the ownership condition for Agricultural Property Relief: land occupied by the owner for agricultural purposes generally needs two years, while land owned by one person and occupied by someone else, such as a tenant, generally needs seven. The second is the seven year survival period for a lifetime gift to fall out of the estate. Both matter to diversification, because moving land or buildings out of agricultural use can change whether the relief applies at all. HMRC publishes the conditions on gov.uk. Take advice from your accountant and a solicitor before you rely on any of it.
What are the four main types of diversification?: In business strategy the four types are horizontal, vertical, concentric and conglomerate diversification. Horizontal means adding something new for the customers you already have, such as a farm shop selling your own produce. Vertical means taking over a step above or below you in the chain, such as milling, butchering or packing what you grow. Concentric means using the same assets and skills for a related market, such as contracting or storage lettings. Conglomerate means something unrelated to farming altogether, such as a wedding venue or a data centre on a redundant yard. Renewable energy sits in the concentric group, because it uses land and buildings you already hold.
What is the most profitable thing to farm in the UK?: There is no reliable single answer, and any list that gives you one is guessing. Profitability varies by soil, climate, scale, contract, capital position and the year, and high margin enterprises are usually high margin because they are hard, risky or capital hungry. The nationally representative source is Defra's Farm Business Income statistics, which break results down by farm type and separate income from agriculture, from agri-environment schemes, from diversification and from basic payments. Read the current edition for your farm type rather than a blog list, and note how large the non agricultural share of income has become on many farms.
What is the most profitable item to farm?: The question usually produces a list of high value niches: saffron, truffles, asparagus, medicinal herbs, micro leaves, alpacas. Each has real examples behind it and each has a reason it has not scaled, normally labour, establishment time, market depth or the fact that success attracts competitors quickly. The safer framing is which enterprise best uses an asset you already hold and cannot easily sell: a building, a road frontage, a skill, a licence, a roof. That framing tends to produce more durable answers than a ranking of crops.
Do I need planning permission to diversify a farm?: Usually yes for a change of use, and sometimes no for the building work itself. Permitted development rights in the General Permitted Development Order cover agricultural buildings and some conversions, including Class R for changing agricultural buildings to a flexible commercial use and Class Q for conversion to dwellings, both with conditions and prior approval. A farm shop, a campsite, an events business or a holiday let will normally need express permission, and highways, parking, drainage and neighbour amenity are where applications get difficult. Solar on a farm building often falls inside permitted development under Part 14. Check with the local planning authority before you commit.
Does diversification affect farm subsidy or agricultural relief?: It can, in both directions, which is why the tax conversation belongs at the start rather than at the end. Taking land or buildings out of agricultural use can affect eligibility for agri-environment schemes and can change how inheritance tax reliefs apply, since Agricultural Property Relief attaches to agricultural use and a diversified trade may depend on Business Property Relief instead. On farm generation used by the farm itself is generally easier on this point than a commercial letting, because the building stays in agricultural use. None of that is advice. Ask your accountant about your own holding before you spend anything.

Lenzie Consulting Ltd arranges the survey, the design and the installation through an MCS-certified partner. We are not authorised or regulated by the Financial Conduct Authority and we do not give financial, tax, legal or planning advice. Take your own professional advice before committing to any diversification project.