What Tree Preservation Orders Mean for Your Property

Published 19 March 2026

If you have ever wondered why tree applications appear so frequently on planning portals, you are not alone. Our data shows that tree-related applications make up over 11% of all planning cases, more than 62,000 applications in our database. That makes tree work the third most common planning application type in the UK, ahead of householder extensions and listed building consent combined.

Why Are There So Many Tree Applications?

Two main legal protections drive this volume, and between them they cover millions of trees across the UK.

Tree Preservation Orders (TPOs)

Councils can place TPOs on individual trees, groups of trees, or entire woodlands that contribute to local amenity. Once a tree has a TPO, you need the council's written consent before you can cut it down, lop it, top it, uproot it, or wilfully damage it. The protection extends to the roots, so even digging near a protected tree can require permission if it might damage the root system.

TPOs are made by the council's own initiative, often when a tree is perceived to be under threat. If your neighbour starts talking about removing a large oak, the council can slap a TPO on it within days. The order takes effect immediately, even before it is formally confirmed. There are currently hundreds of thousands of TPOs in force across England and Wales, though no single register exists that lists them all comprehensively.

Conservation Area Trees

In a conservation area, the rules are different but equally strict. You must give your council six weeks' written notice before carrying out work on any tree with a trunk diameter of 75mm or more, measured at 1.5 metres from ground level. That is roughly the thickness of a tennis ball. This applies to every qualifying tree in every conservation area, whether or not it has a specific TPO. The council then has six weeks to either make a TPO (preventing the work) or let the notice period expire (allowing it to proceed).

There are approximately 10,000 conservation areas in England alone, covering town centres, historic villages, suburban streets, and rural landscapes. If you live in one, virtually every significant tree in your garden is protected by default.

What Counts as "Work"?

The definition of "work" is broader than most people expect. You need permission for:

Felling - cutting down a tree entirely
Crown reduction - reducing the overall size of the canopy
Crown thinning - selectively removing branches to allow more light through
Pollarding - cutting back to the trunk or main framework branches
Crown lifting - removing lower branches to increase clearance
Removing major limbs - even a single large branch
Root pruning - cutting roots that could affect the tree's health or stability

You generally do not need permission for:

Removing dead branches - though you should still notify the council if the tree has a TPO, as "dead" is a matter of professional judgment
Trees that are dead, dying, or dangerous - but you must give the council five days' notice (or act immediately if there is an urgent safety risk) and be able to prove the tree was genuinely dangerous
Fruit picking - harvesting fruit from a protected tree is fine
Minor pruning - removing small twigs and shoots that will not affect the tree's overall health or appearance

The Application Process

Tree applications are free to submit, which partly explains why there are so many. For TPO trees, you submit a formal application to the council describing the proposed works, justifying why they are necessary, and (for removal) proposing replacement planting. The council then has eight weeks to decide.

For conservation area trees, the process is simpler. You submit a "Section 211 notice" describing the intended works. The council then has six weeks to respond. If they do nothing, you can proceed. If they want to prevent the work, they must make a TPO within that six-week window.

In both cases, you should include a clear specification of the works (ideally prepared by a qualified arboriculturist), photographs of the tree, and a justification. Common justifications include: the tree is causing subsidence damage, it is blocking light to a disproportionate degree, it has structural defects that make it a safety risk, or it is outgrowing its location.

The Penalties for Unauthorised Work

Ignoring a TPO is a criminal offence. Fines can be unlimited in the Crown Court, and magistrates can impose fines of up to 20,000 pounds per offence. The council can also require you to plant a replacement tree of an appropriate species and size at the same location. These replacement trees automatically inherit the original TPO protection.

In practice, enforcement varies. Some councils actively prosecute (particularly for mature specimen trees in prominent locations), while others take a more pragmatic approach for minor breaches. But the risk is real, and ignorance of a TPO is not a defence. It is your responsibility to check before carrying out any tree work.

For conservation area trees, unauthorised work carries similar penalties. Cutting down a tree in a conservation area without giving notice can result in prosecution and a requirement to plant a replacement.

Common Reasons for Refusal

Not all tree applications are approved. Common reasons for refusal include:

Insufficient justification - "I don't like the leaves" is not a valid reason to fell a protected tree
The tree contributes significantly to amenity - if the tree is visible from public areas and contributes to the character of the streetscape, the bar for removal is high
Alternative solutions exist - if crown reduction would solve the problem without removing the tree entirely, the council will usually prefer that option
Poor replacement proposals - if you want to remove a mature oak and replace it with a small ornamental cherry, the council may not consider that adequate mitigation

Subsidence and Insurance Claims

One of the most contentious areas of tree work is subsidence. Clay soils shrink and swell depending on moisture content, and large trees can draw significant moisture from the ground. This causes ground movement that can crack foundations. Insurance companies often insist on tree removal as a condition of settling subsidence claims.

However, councils are not obliged to allow removal simply because an insurance company requests it. The council must balance the amenity value of the tree against the damage it is causing. In practice, most subsidence cases are resolved through a combination of engineering solutions (underpinning) and tree management (crown reduction to limit water uptake) rather than outright removal.

How to Check if Your Trees Are Protected

TPO information is held by your local council, usually available on their planning portal or by contacting the tree officer directly. Some councils publish interactive TPO maps, while others require you to submit a written enquiry. If you are buying a property, your solicitor's local authority search should reveal any TPOs affecting the land.

For conservation areas, check the council's website for a map of designated conservation areas. If your property falls within one, assume all significant trees are protected until you confirm otherwise.

Search your postcode on Planning Signal to see recent tree applications near your property. If neighbours are regularly applying for tree work, it is a strong indicator that your area has protections in place.