Tree Work Regulations in the UK: What You Need to Know Before You Cut

Why Tree Work Has a Legal Framework

Trees are a protected natural resource in the UK. Whether you manage a commercial estate, a residential development or a private property, carrying out tree work without understanding the applicable regulations can result in significant fines, enforcement action, and costly remediation requirements.

The legal landscape around tree work is more complex than many property managers and facilities teams realise. It involves multiple overlapping pieces of legislation, planning policy and local designations — and ignorance of the rules is not a defence.

This guide explains the key regulations governing tree work in the UK, what they mean in practice, and what you need to do before instructing any tree maintenance on your site.

Tree Preservation Orders (TPOs)

A Tree Preservation Order is a legal instrument used by local planning authorities to protect specific trees or groups of trees that have amenity value. Once a TPO is in place, it is a criminal offence to cut down, uproot, top, lop, or carry out any works to the protected tree without the prior written consent of the local planning authority.

Key points about TPOs:

• TPOs can be placed on individual trees, groups of trees, woodlands, or areas of trees
• They apply to trees of any species — there is no minimum size requirement
• Works that would normally be considered routine maintenance require formal consent if the tree is protected
• Emergency works are permitted without prior consent only where there is an immediate risk to life or property — but the local authority must be notified as soon as possible
• Unauthorised works on a TPO tree can result in fines of up to £20,000 per tree on summary conviction

Before instructing any tree work on your site, check with your local planning authority whether any trees are subject to a TPO. Many councils maintain publicly accessible TPO maps, though the information is not always fully up to date. A qualified arborist will typically carry out this check as part of any pre-works survey.

Trees in Conservation Areas

Conservation Areas are designated areas of special architectural or historic interest, and many towns and villages across Hertfordshire, Buckinghamshire and the wider South East contain Conservation Area designations.

Under the Town and Country Planning Act 1990, any tree in a Conservation Area with a trunk diameter of 75mm or more, measured at 1.5m from the ground, is subject to protection — even if there is no TPO in place.

The procedure for works to Conservation Area trees is:

• Submit a Section 211 notification to the local planning authority at least six weeks before works are due to take place
• The local authority has six weeks to respond — they may consent, impose conditions, or serve a TPO to prevent the works
• If six weeks pass without a response, works can proceed
• Emergency works follow the same procedure as for TPO trees — immediate notification required

This six-week requirement is frequently overlooked by property managers who instruct tree work without checking Conservation Area boundaries. The consequences of non-compliance are the same as for unauthorised TPO works.

Conservation Area boundaries for Hertfordshire, including areas around Tring, Berkhamsted and the Chilterns, can be checked through the relevant local planning authority — typically Dacorum Borough Council or Buckinghamshire Council for sites in TLC Landscapes’ core service area.

The Wildlife and Countryside Act 1981

The Wildlife and Countryside Act applies to all tree and hedge work — not just those in protected areas. It makes it an offence to intentionally damage or destroy the active nest of any wild bird species.

Trees are significant nesting habitat. Before carrying out any tree work during the bird nesting season (broadly March to August), a qualified ecologist or experienced arborist should survey the tree for active nests. If active nests are present, works must be postponed until the nesting cycle is complete.

There is no exemption for urgent or commercial reasons. If a bird is actively nesting, the nest has legal protection regardless of the circumstances.

The Hedgerows Regulations 1997

The Hedgerows Regulations apply to hedgerows alongside or within agricultural land, common land, and certain protected or heritage sites. Under these regulations, removing — or carrying out works that would substantially affect — a ‘important’ hedgerow requires notification to the local planning authority.

What makes a hedgerow ‘important’ under the regulations includes factors such as age, ecological value, the presence of protected species, and historic or archaeological significance.

While these regulations primarily affect agricultural land and development sites, commercial properties on the edge of towns and villages — including many sites across the Tring and Aylesbury areas — may have hedgerows that fall within their scope. If in doubt, seek advice before instructing removal or significant reduction works.

High Hedges and the Anti-Social Behaviour Act 2003

The Anti-Social Behaviour Act 2003 introduced a separate mechanism for addressing high hedges — typically leylandii — that unreasonably affect the enjoyment of neighbouring residential properties.

Under this legislation, affected neighbours can apply to the local council for a remedial notice requiring the hedge to be reduced to a specified height. While this is primarily a residential mechanism, commercial properties that maintain high hedges near residential neighbours should be aware of their potential obligations under this route.

In Practice: What Should You Do Before Instructing Tree Work?

For any property manager, housing team or facilities operator instructing tree work, the recommended procedure is as follows:

• Check whether any trees on the site are subject to a TPO — contact your local planning authority or use their online TPO map
• Check whether your site falls within a Conservation Area — if so, the Section 211 notification procedure applies to any trees over the threshold diameter
• Check the time of year — if it is between March and August, an active nest survey must take place before works begin
• Instruct a qualified arborist to carry out a pre-works survey covering all of the above, and to confirm what consents or notifications are required
• Ensure any consents are in place before works commence — never rely on verbal assurances

A reputable tree contractor will carry out these checks as a matter of course and will not commence works without confirming compliance. Be cautious of any contractor who skips this process or suggests it is unnecessary.

Frequently Asked Questions

How do I find out if a tree on my site has a Tree Preservation Order?

Most local planning authorities maintain a publicly accessible TPO register or map on their website. Alternatively, contact your local planning authority’s planning department directly and provide the address or grid reference of the site. A qualified arborist will typically carry out this check as part of any initial survey.

Can I carry out emergency tree work without permission?

Emergency works — for example, removing a branch that has fallen and is blocking access, or addressing an imminently dangerous tree — can be carried out without prior consent where there is a genuine and immediate risk. However, the local planning authority must be notified as soon as possible after the works, and only the minimum necessary works to address the immediate risk should be carried out.

What happens if I carry out unauthorised tree work?

Unauthorised works on a TPO tree or a tree in a Conservation Area can result in a fine of up to £20,000 per tree. In addition, the local planning authority can require replanting of a replacement tree of equivalent amenity value, at the landowner’s cost. The consequences are significant enough to make pre-works checks non-negotiable.

Do I need a qualified arborist for routine tree maintenance?

For anything beyond light pruning of small trees, a qualified arborist is strongly advisable. Any works on trees subject to a TPO or in a Conservation Area should always be carried out by a qualified professional. For commercial sites, the liability risks of using an unqualified contractor — from regulatory non-compliance to insurance invalidation — significantly outweigh any cost savings.

Professional Tree Work Services in Tring, Berkhamsted and Across the Chilterns

TLC Landscapes provides professional tree work and arboricultural services for commercial properties across Hertfordshire, Buckinghamshire and Bedfordshire. Our team works regularly across Tring, Berkhamsted, Hemel Hempstead, Aylesbury, Wendover and surrounding areas — many of which fall within or adjacent to Conservation Area designations.

We carry out pre-works surveys as standard, confirm TPO and Conservation Area status before any works commence, and operate in full compliance with the Wildlife and Countryside Act and all applicable planning regulations. Our qualified arborists hold NPTC certification and carry appropriate insurance for all tree work operations.

If you manage a commercial site and need tree work carried out, we can survey your trees, confirm what consents are required, handle any notifications to the local planning authority, and carry out works safely and in full regulatory compliance.

Contact TLC Landscapes for professional tree work advice and a site survey. We serve commercial clients across Hertfordshire, Buckinghamshire and Bedfordshire — from single-site estates to multi-site portfolios.