Tree pruning rules: what homeowners can (and can’t) do

Pruning or removing a tree in Hertfordshire is not always as simple as cutting back branches on your own land. A Tree Preservation Order, conservation area rules, neighbouring rights, nesting birds and nearby hazards can all affect what you may legally and safely do.

This guide is not legal advice, and local procedures can vary between Hertfordshire councils. However, it provides a sensible first step for checking permissions and gathering the right information before arranging tree surgery.

Start with a permission check

Begin by identifying the tree’s location, ownership and condition. Ask yourself whether it stands within a conservation area, whether it has a Tree Preservation Order (TPO), and whether the proposed work involves pruning, felling or removing deadwood.

Do not rely on the tree’s size or appearance to decide whether restrictions apply. A tree can be protected even if it is in a private garden, and a protected group of trees may be covered by one order. Check the relevant council planning or tree protection service before work starts.

• Check the council’s online planning records or contact its tree team.

• Confirm whether a TPO applies to the individual tree or a wider group.

• Check whether the property is inside a designated conservation area.

• Record photographs, the tree’s position and the work you are considering.

TPOs and Conservation Areas explained

Tree Preservation Orders

A TPO is a legal protection placed on a tree, group of trees or woodland because of its contribution to the local area. You generally need written consent from the local planning authority before pruning, cutting roots, uprooting or removing a protected tree.

Unauthorised work can lead to serious penalties, so do not assume that removing a dead, damaged or dangerous tree is automatically permitted. If there is an immediate safety risk, take reasonable steps to protect people and property, keep clear evidence of the condition and contact the council as soon as possible.

Conservation Areas

In a conservation area, you normally need to give the council at least six weeks’ notice of proposed work to a tree above the relevant size threshold. This gives the authority time to decide whether a TPO is needed. The council may allow the work, request changes or make a TPO.

These are separate controls. A tree in a conservation area may not have a TPO, while a TPO may apply outside a conservation area. Confirm both before booking a contractor.

Evidence councils usually request

Applications and notices work best when they explain exactly what is proposed and why. Councils commonly ask for the property address, a clear site plan, photographs, the tree species if known, and a description of the tree’s size and position.

You may also need to describe the pruning method, the amount of growth to be removed and the reason for the work, such as dead branches, structural defects, clearance from a building or management of an overgrown canopy. An arboricultural report can be useful where the tree is large, declining, close to a target or involved in a planning concern.

A qualified arborist can inspect the tree, identify defects and prepare supporting evidence in straightforward terms. They can also help ensure that the proposed work is proportionate, rather than recommending unnecessary removal.

Neighbours, boundaries and access

Branches extending over your boundary do not automatically give you permission to enter a neighbour’s garden or cut the tree back heavily. You may generally prune overhanging growth back to your boundary, provided the work is reasonable and does not breach a TPO or other restriction. You should offer the cut branches back to the tree owner rather than placing them over the fence without agreement.

Extra care is needed with trees growing on a boundary. Ownership can depend on the trunk’s position, land records and the circumstances in which the tree was planted. Discuss proposed work with the neighbour before arranging it, particularly where a shared tree, roots, access equipment or removal is involved.

Get permission before entering adjoining land, placing a vehicle on a verge or blocking a road or footpath. Work near public routes may require traffic management, and branches over roads, pavements or driveways create a higher risk if they are cut without proper control.

Wildlife, timing and safe methods

Before pruning, check for active bird nests and other signs of wildlife. The Wildlife and Countryside Act protects wild birds, their nests and eggs, so avoid disturbing an occupied nest and postpone non-urgent work until it is no longer in use. A professional can advise if bats or other protected species may be present in cavities, loose bark or dense ivy.

Timing also affects the tree’s health. Excessive pruning, topping or cutting large limbs can create decay points, weaken the structure and encourage disease. Good tree surgery uses suitable cuts, removes only what is necessary and considers the species, season, weather and surrounding targets.

DIY or professional help?

Small, ground-level work on an unprotected tree may be manageable for a careful homeowner, but climbing trees or using a chainsaw introduces significant risks. Use this quick guide before deciding:

• DIY may be reasonable: light pruning from the ground, with no protected status, cables, traffic or signs of damage.

• Call a professional: the tree is tall, requires climbing or stands close to a house, road, footpath or parking area.

• Always seek specialist help: branches are near power lines, the trunk is split or leaning, or there are cavities, fungal growth or extensive deadwood.

• Pause and check permissions: the tree may have a TPO, be in a conservation area or stand on a shared boundary.