Metal detecting on an SSSI: when you need Natural England's consent

Scheduled monuments protect what’s under the soil. SSSIs protect what’s in it and on it: the plants, the insects, the birds, the rock.

That changes the question. On a scheduled monument, the detector itself is the problem. On an SSSI, the problem is anything that might damage what the site is protected for. A spade in the wrong meadow can do that.

This guide covers England, with a note on Wales.

What an SSSI is

A Site of Special Scientific Interest is land that Natural England has picked out for protection. It does this when it believes the land has special features, such as its wildlife, its geology or its landform.

SSSIs can be anything from a wood to a wet meadow to an old quarry. Some sit on farmland, which is why stewardship agreements have rules about them.

Is detecting banned on SSSIs?

Not across the board. The PAS puts it carefully: metal detecting “is not permitted on some Sites of Special Scientific Interest (SSSIs) without the permission of Natural England”.

Whether it’s allowed depends on the site, and on the farm. Two things decide it:

1. The site’s own list of operations. More on that below.
2. Any farm scheme. If the land is in a Countryside Stewardship agreement, Historic England says detecting isn’t allowed on SSSIs at all. Our stewardship guide explains the scheme rules.

The ORNEC list

Every SSSI in England has a list of activities that need Natural England’s consent. Natural England calls it the ORNEC list, short for “operations requiring Natural England’s consent”.

The lists vary from site to site. We read two:

• Aversley Wood. Its list runs to about 25 items. They include cultivation, extraction of minerals “including topsoil, subsoil, and spoil”, and item 27: “Recreational or other activities likely to damage features of interest.”
• Wurt Pit and Devil’s Punchbowl. A much shorter list, about things like dumping, infilling and earthworks. No recreation item.

So read the list for the site you’re on. You can download it from Natural England’s Designated Sites System.

The ORNEC list isn’t the whole story, though. Natural England’s guidance says you must get permission for listed operations and for “other activities that may damage the SSSI, such as an event or surveying - including those carried out by a third party”. A detectorist is a third party.

Who has to ask

Not you, directly. The duty sits with the landowner.

Under section 28E of the Wildlife and Countryside Act 1981, the owner or occupier of SSSI land must not carry out, “or cause or permit to be carried out”, a listed operation unless they’ve given Natural England notice and one of a few conditions is met. The main one is Natural England’s written consent.

Natural England’s guidance says the same thing from your side. If you don’t own or occupy the land and you plan an activity such as an event or survey, you must work with the owner or occupier.

And consent from Natural England isn’t permission to be there. You still need the landowner’s, and any other permissions the activity needs.

The offences

Section 28P of the 1981 Act sets out the offences:

Who	What	Penalty under the Act
Owner or occupier	Breaking section 28E, without reasonable excuse	A fine, on summary conviction or on indictment
Any person	Intentionally or recklessly destroying or damaging the features the site is protected for, or disturbing its protected fauna, knowing it was an SSSI	A fine, on summary conviction or on indictment
Any person	The same damage or disturbance, intentionally or recklessly, without the knowledge element	A fine up to level 4 on the standard scale

Natural England’s guidance puts the owner’s risk plainly. Carry out a listed operation, or allow someone else to, without consent, and you could get an unlimited fine and have to pay to repair the damage.

That’s the farmer’s risk, and your digging could be what creates it. Expect them to take it seriously.

How consent works

If the landowner thinks consent is needed, Natural England’s process runs like this:

1. Talk first. Natural England suggests discussing the proposal, and may give informal advice. Paid advice options exist too.
2. Fill in the consent notice form. It asks who owns the land, the SSSI’s name, what you plan to do, where, how and when, and any machinery. Since 20 April 2026, Natural England’s main route is an online form.
3. Wait. Natural England acknowledges within 10 working days, and aims to decide straightforward cases within 28 working days. It can take up to 4 months.
4. Read the decision. Consent can be granted, granted with conditions, or refused. If there’s no decision in 4 months, treat it as a refusal.

Natural England says it assesses the scale and intensity of the operation against what the site can sustain. Owners can appeal a decision to Defra.

Wales

In Wales, Natural Resources Wales handles SSSIs. Its lists are called OLDSI lists, and older sites may have a PDO list.

The rule is much the same. Before an owner or occupier carries out, or allows someone else to carry out, anything on the list, they must notify NRW in writing and get its consent. NRW must respond within 4 months; no decision by then means refusal.

NRW says it is usually able to grant consent, sometimes with conditions, and that refusals are rare. It also warns that damaging an SSSI from outside its boundary could still be an offence.

How to check a field

• Ask the landowner. Natural England says all SSSIs in England are registered on the Land Charges register, and a conveyancing search checks for them, so an owner should be able to tell you.
• Use MAGIC. Natural England’s guidance points to the MAGIC map to check whether land is in an SSSI.
• Use the Designated Sites System. It gives the boundary map, the ORNEC list and why the site was designated.
• In Wales, use DataMapWales and NRW’s designated sites search.
• Ask your Finds Liaison Officer or the Historic Environment Record. The PAS Code names both as sources on protected sites, alongside MAGIC.

Then write it down. Our permission letter template has a clause for SSSIs and other protected areas.

On the coast? Our beach detecting guide covers SSSIs and Marine Conservation Zones on the foreshore. And for archaeology rather than wildlife, see scheduled monuments.

FAQ

Can you metal detect on an SSSI?

Not automatically, and not without checking. The PAS says metal detecting is not permitted on some SSSIs without Natural England's permission. Each SSSI has its own list of operations requiring Natural England's consent, and Natural England also says you need permission for other activities that may damage the site, including those by a third party. If the land is in a Countryside Stewardship agreement, Historic England says detecting on SSSIs isn't allowed.

Who applies for SSSI consent?

The owner or occupier. Under section 28E of the Wildlife and Countryside Act 1981, they must not carry out, or cause or permit, a listed operation without notice to Natural England and consent. Natural England says that if you don't own or occupy the land and plan an activity such as an event or survey, you must work with the owner or occupier.

How do I check if land is an SSSI?

In England, use the MAGIC map, or search Natural England's Designated Sites System, which also gives each site's list of operations needing consent. In Wales, Natural Resources Wales points to DataMapWales and its designated sites search. The PAS Code also suggests asking the landowner, your Finds Liaison Officer or the Historic Environment Record.

What is the penalty for damaging an SSSI?

Under section 28P of the 1981 Act, a person who intentionally or recklessly damages the features an SSSI is protected for, knowing it was an SSSI, can be fined on summary conviction or on indictment. Without that knowledge element, intentional or reckless damage or disturbance is a summary offence with a fine up to level 4. Natural England says an owner who carries out, or allows, a listed operation without consent could get an unlimited fine and have to pay to repair the damage.

How long does SSSI consent take?

Natural England acknowledges an application within 10 working days and tries to decide straightforward cases within 28 working days. It can take up to 4 months. If there is no decision within 4 months, you should take it as a refusal.

Sources

Every figure in this guide comes from one of these. We checked each one on 3 November 2026.

1. Natural England, “Sites of special scientific interest: managing your land and getting consent for activities” (GOV.UK, updated 20 April 2026). www.gov.uk/guidance/sites-of-special-scientific-interest-managing-your-land-and-getting-consent-for-activities
2. Wildlife and Countryside Act 1981, section 28E (duties in relation to SSSIs). www.legislation.gov.uk/ukpga/1981/69/section/28E
3. Wildlife and Countryside Act 1981, section 28P (offences). www.legislation.gov.uk/ukpga/1981/69/section/28P
4. Natural England, operations likely to damage the special interest: Aversley Wood (PDF, ORNEC list). designatedsites.naturalengland.org.uk/PDFsForWeb/Consent/1000002.pdf
5. Natural England, operations likely to damage the special interest: Wurt Pit and Devil's Punchbowl (PDF). designatedsites.naturalengland.org.uk/PDFsForWeb/Consent/1000187.pdf
6. Natural England blog, “Modernising submissions for Protected Sites requests” (20 April 2026). naturalengland.blog.gov.uk/2026/04/20/modernising-submissions-for-protected-sites-requests/
7. Natural Resources Wales, “Sites of special scientific interest (SSSI): responsibilities of owners and occupiers”. www.naturalresources.wales/guidance-and-advice/environmental-topics/wildlife-and-biodiversity/protected-areas-of-land-and-seas/sites-of-special-scientific-interest-responsibilities-of-owners-and-occupiers/?lang=en
8. Historic England, “Metal Detecting on Agri-Environment Land”. historicengland.org.uk/advice/caring-for-heritage/rural-heritage/metal-detecting-agri-environment-land/
9. Portable Antiquities Scheme, “Detecting on your land: know your rights as a landowner”. finds.org.uk/detecting-on-your-land-know-your-rights-as-a-landowner
10. Portable Antiquities Scheme, Code of Practice for Responsible Metal Detecting. finds.org.uk/guides/detecting-guidance/code-of-practice-for-responsible-metal-detecting