Most people figure that if something is buried on their land, it’s theirs by default, but the law in many places says otherwise. You might be digging a flower bed and hit a hoard of old coins or a piece of ancient jewellery, only to find out that the government has a much stronger claim to it than you do.
It’s a frustrating reality where your property deed suddenly has a massive asterisk next to it the moment you find something historically significant. You’re not just dealing with finders keepers; you’re navigating a complex web of treasure acts and heritage laws that can turn your lucky find into a legal nightmare if you don’t report it. These 12 things are exactly what you’ll have to hand over if you’re ever lucky (or unlucky!) enough to dig them up.
Gold and silver items over 300 years old must be reported.
The Treasure Act 1996 is very clear about this. If you find any object that’s at least 300 years old and contains more than 10% precious metal, it’s classified as treasure and belongs to the Crown. This includes coins, jewellery, religious objects or decorative items.
You have 14 days to report your find to the local coroner, and failing to do so is actually a criminal offence. Museums get first dibs on purchasing the item at market value, which gets split between you and the landowner if you’re not the same person. You don’t get to just pop it on eBay.
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Archaeological artifacts need professional assessment.
Pottery shards, Roman tiles, medieval tools or any objects of historical significance should be reported to your local Finds Liaison Officer. Even if they’re not classified as treasure under the Act, they might be important for understanding local history.
Taking these items without reporting them can result in prosecution under heritage protection laws. The Portable Antiquities Scheme exists specifically to record these finds, and they’ll tell you if what you’ve found is significant. Most Roman pottery won’t be treasure, but it still matters to archaeologists trying to piece together the past.
Protected bird nests and eggs are completely off-limits.
The Wildlife and Countryside Act 1981 makes it illegal to intentionally take, damage or destroy the nest of any wild bird whilst it’s being built or in use. This applies to common species like robins and blackbirds, not just rare birds. Finding eggs in your garden doesn’t mean you can collect them, even from an abandoned nest.
All wild bird eggs are protected, and possessing them without a licence is illegal. If you disturb a nest accidentally whilst gardening, you must stop work immediately and leave it alone until the birds have finished nesting.
Badger setts cannot be disturbed or filled in.
If badgers have dug a sett in your garden, you cannot block it, destroy it or disturb the badgers without a licence from Natural England. The Protection of Badgers Act 1992 makes it a criminal offence to interfere with badger setts.
Even if they’re destroying your lawn or undermining structures, you need official permission before taking action. This often frustrates homeowners, but badgers are heavily protected in the UK. You can be fined up to £5,000 and face six months in prison for illegally interfering with a sett.
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Bat roosts are strictly protected by law.
If bats are roosting in your shed, garage or outbuildings, you cannot remove them, block their access or disturb their roost without a licence. All British bat species are protected under the Wildlife and Countryside Act and the Conservation of Habitats and Species Regulations.
Even if you’re planning renovations, you need a licensed ecologist to survey for bats first and create a mitigation plan. Disturbing bats or destroying roosts can result in unlimited fines and up to six months imprisonment. The bats were probably there before you were, legally speaking.
Human remains must be reported immediately.
Finding bones in your garden that might be human requires you to stop digging and contact the police straight away. It doesn’t matter if they’re ancient or recent, you cannot simply rebury them or keep them. The police will determine if they’re of forensic interest or archaeological significance.
Whether or not they’re determined to be ancient and not part of a crime scene, they typically go to a museum or receive proper reburial. Keeping human remains without proper authority is illegal under various laws, including the Human Tissue Act 2004.
Unexploded ordnance belongs to the Ministry of Defence.
Britain was heavily bombed during WWII, and unexploded bombs, shells and grenades still turn up regularly in gardens, especially in cities like London or Plymouth. If you find anything that looks like military ordnance, do not touch it, move it or try to clean it.
Call the police immediately, and they’ll contact bomb disposal. These items remain the property of the MoD and are obviously extremely dangerous. People have been killed trying to dismantle “harmless” old grenades they dug up. Take it seriously and keep well away.
Protected plant species cannot be uprooted or sold.
If rare orchids, wild garlic or other protected plants are growing in your garden, you cannot dig them up and move them or sell them. The Wildlife and Countryside Act protects numerous plant species from being picked, uprooted or destroyed.
This applies even on your own land in some cases, particularly if the plants are part of a designated Site of Special Scientific Interest. You’re generally allowed to enjoy them where they are, but removing protected species without a licence is illegal. Most people don’t realise their garden might contain legally protected flora.
Slow worms and other reptiles are protected.
Slow worms, common lizards, grass snakes and adders are all protected under UK law. You cannot intentionally kill, injure or sell these reptiles. If you’re doing garden work and uncover reptiles sheltering under logs or compost heaps, you must leave them alone or carefully move them to safety.
Taking slow worms from your garden to keep as pets is illegal. All British reptiles receive some level of protection, and deliberately harming them can result in fines. They’re beneficial for your garden anyway, eating slugs and other pests.
Medieval or Roman coins often qualify as treasure.
Even a small hoard of old coins can meet the definition of treasure. If you find two or more coins from the same find that are at least 300 years old, they’re legally treasure and must be reported. Single coins don’t usually count unless they’re gold or silver and meet the age requirement.
Metal detecting in your own garden might seem harmless, but the law still applies to everything you find. Roman and medieval coins turn up surprisingly often in British gardens, especially in historically significant areas. Report them properly, and you might get a reward if a museum wants them.
Meteorites have uncertain legal status but should be reported.
If a meteorite lands in your garden, the legal ownership is actually murky in UK law. Technically, they might be considered a treasure trove or might belong to the landowner, but there’s no clear precedent. The ethical and scientific thing to do is report it to the Natural History Museum or a university.
Meteorites are scientifically valuable, and keeping quiet about one deprives researchers of important data about its fall trajectory and composition. You might be able to keep it or receive compensation, but hoarding it without reporting it means vital scientific information is lost forever.
Someone else’s lost property must be reported if valuable.
If you find jewellery, wallets, or other valuable items buried in your garden that clearly belonged to someone else, you’re supposed to hand them to the police. Under the Theft Act 1968, keeping lost property without making reasonable efforts to find the owner can be considered theft by finding.
The police hold items for a set period, and if the owner doesn’t claim them, you might get them back. This applies even if you found something buried in your own garden, as it likely belonged to a previous resident or was lost by someone else. Just because it’s on your property doesn’t automatically make it yours.