Last updated on March 31st, 2022
Agricultural building cost estimator
In the market for a new farm building? Farm buildings come in all shapes and sizes, from prefabricated kit sheds to custom-built barns. In this guide, we’ll provide you with an agricultural building cost estimator. We’ll cover both steel and wood farm buildings in different sizes. This will help you assess how much your project could potentially cost.

In the market for a new farm building? You may need a new dry workspace for the winter months, or a new barn or shed to store agricultural produce, vehicles or equipment. Alternatively, you may need a new home for livestock, or just more space if your business is expanding.
Farm buildings come in all shapes and sizes, from prefabricated kit sheds to custom-built barns.
In this guide, we’ll provide you with an agricultural building cost estimator. We’ll cover both steel and wood farm buildings in different sizes. This will help you assess how much your project could potentially cost.
Farm building type | Low cost | High cost | Average cost |
---|---|---|---|
Steel kit building cost (small garage or shed typically 3m x 3m) | £500 | £2,000 | £1,250 |
Steel agricultural building cost (3.6m x 7.2m) | £6,000 | £10,000 | £8,000* |
Steel agricultural barn cost (9.6m x 18m) | £25,000 | £35,000 | £30,000* |
Wooden agricultural building cost (3.6 x 6m) | £3,000 | £4,000 | £3,500 |
Our costs are ballpark averages – get a local tradesperson to quote now
Farm building cost guide
A number of different factors can affect new farm building costs. These include the materials used and the size of the structure. But you should also remember that delivery and installation can add a significant extra cost to your total budget.
And if you want any additional features such as doors, windows, cladding and equipment, these will also push the final cost up higher.
You’ll usually find it cheaper to install a kit farm building, as these cost around £1,250 for a small portable shed or garage. For custom or large farm buildings, you could expect to pay up to £30,000*.
*Prices include the delivery of a pre-designed kit including steel structure, roof, non-insulated walls and doors. Prices exclude concrete bases and installation.
For civils/groundworks you can typically add 50% to the price. So for a £30,000 steel building, add £15,000 for groundworks/concrete.
On average, £1,000 per day will cover a team of three and plant hire for the installation works. This could be a couple of days for a simple building or up to one or two weeks for a larger steel building.
Steel agricultural building cost per square metre
Steel is one of the most common materials used for agricultural buildings, as it is strong, durable and hard-wearing.
You can expect to pay on average, between £6,000 – £10,000* for a 3.6m x 7.2m steel agricultural building. (*Prices include the delivery of a pre-designed kit including steel structure, roof, non-insulated walls and doors. Prices exclude concrete bases and installation.)
Wooden agricultural buildings prices
If you prefer your farm buildings built of traditional wood rather than steel or another material, you can expect to pay between £3,000 – £4,000. This is for a 3.6m x 6m shed.
FAQs
Will I need planning permission for a new farm building?
You may need planning permission to build a new barn or extend an existing agricultural building. In some cases though, such as for large farms, you may be exempt from planning permission requirements. This is known as agricultural permitted development. Before any work starts, it’s always a smart idea to check with your local authority for detailed information on what planning permission is required for farms.
What is BS 5502?
BS 5502 is a voluntary British Standard that new agricultural buildings should ideally meet. During your build, It’s recommended to follow its guidelines on best practices. This should help you to build a safe structure that is durable and fit for purpose.
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