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Tree Tool Guide: Protected Trees

A guide to protected tree status, including Tree Preservation Orders (TPOs) and designated Conservation Areas

Oliver Lewis avatar
Written by Oliver Lewis
Updated this week

In England, certain trees are protected by enhanced legal protection. These protections are designed to safeguard valuable trees from avoidable harm, preserve local environmental character, and provide councils with oversight before works take place. Two key categories dominate this landscape: Tree Preservation Orders (TPOs) and trees in Conservation Areas. Understanding the difference – and what the law actually requires – is essential for anyone planning work that may affect trees.

In all cases, there are specific statutory control which restricts work such as cutting down, topping, lopping, uprooting, wilful damage or destruction. Protection does not prevent all works, but it creates a legal requirement to notify or seek consent from the Local Planning Authority (LPA) before undertaking them.

Tree Preservation Orders (TPOs)

A Tree Preservation Order is a legal order made by a Local Planning Authority under sections 197–214D of the Town and Country Planning Act 1990, supported by the Town and Country Planning (Tree Preservation) (England) Regulations 2012.

A TPO can protect:

  • A single tree

  • A group of trees

  • An area of trees

  • Woodlands

TPOs are used to protect trees with significant amenity value, particularly where the tree is visible to the public or contributes to local character.

It is a criminal offence to carry out any of the following without LPA consent:

Cutting down

  • Topping

  • Lopping

  • Uprooting

  • Wilful damage

  • Wilful destruction

Penalties can include:

  • Unlimited fines in the Magistrates' Court

  • A requirement to plant a replacement tree

  • Potential civil action for damages

Trees in Conservation Areas

Under section 211 of the Town and Country Planning Act 1990, anyone wishing to carry out work to a tree in a Conservation Area must give the LPA six weeks’ written notice (a “section 211 notice”).

This applies to trees with a stem diameter of 75mm or greater (measured at 1.3m above ground level). Note that there is no need to apply for “consent” – only to notify. LPAs can let the notification lapse, object, or make a TPO.

Ancient or Veteran Trees

Ancient trees are the oldest living trees of their species, having moved beyond full maturity into a distinct “ancient” life stage. They are irreplaceable ecological and cultural assets, often hundreds of years old—and in some species, much older. Ancient trees are always veteran trees, but are set apart by their exceptional age, slow growth stage, and highly developed features of decay and habitat complexity. Ancient trees can be found across woodlands, parklands, farmland, churchyards and hedgerows. Many began life in landscapes or management systems that no longer exist—hence their survival is often a rare link to past habitats, land use and cultural practices. Ancient trees are “old in comparison with other trees of the same species.” The threshold varies significantly:

  • Birch may be ancient at 120–150 years,

  • Oak may become ancient at 400+ years,

  • Yews may reach ancient status at 800–1,000+ years.

Veteran trees are mature trees that have developed the characteristic features associated with age, long life, and ecological importance. They are not necessarily “ancient” in a strict chronological sense. Instead, a tree becomes a veteran because of the features it possesses—features that make it valuable for wildlife, landscape history, and habitat continuity. These include hollowing trunks, cavities, decaying wood, retrenched crowns, and other structural attributes that take decades or even centuries to form. As the guide notes, while all ancient trees are veteran trees, not all veteran trees are ancient

Other types of protected trees

Beyond TPOs and Conservation Areas, several other designations can also restrict works:

  • Trees protected by Section 106 Agreements

  • Trees that are subject to Forestry Commission Felling Licenses

  • Trees that contain nesting birds, roosting bats or other protected species.

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