Do You Need Planning Permission to Cut Down a Tree?
Not exactly, but several protections can make the work unlawful anyway. Here is what applies, how to check in one email, and what to do when consent is needed.
Written by John McNamara, arboricultural consultant, McNamara Tree Consultancy
Strictly speaking, you do not need planning permission to cut down a tree. Felling is not development, and the planning permission people search for does not exist as such. What does exist is a set of specific protections that make some tree work unlawful without consent, and the expensive mistakes happen when people assume none of them apply.

The protections that matter
First, Tree Preservation Orders. A TPO is a planning instrument a council makes over specified trees, groups or woodlands, usually where development pressure threatens them. It is not about species and it is not about size. If a TPO covers the tree, cutting it down, topping it, or wilfully damaging it without the council's consent is an offence, and fines can be substantial. Consent is sought through a TPO application, formally an application for tree works, and well-evidenced tree work applications for justified work are routinely granted.
Second, Conservation Areas. A tree within one should be treated in the same manner as a tree under a TPO. A well documented and methodical application should be submitted to the council, and no tree work should commence until permission has been granted. Doing the work without consent is an offence even though no TPO exists.
Third, planning conditions. On newer developments, the landscaping scheme approved with the planning permission often protects retained and planted trees for a period. Removing a tree that a condition requires to be kept can put the whole permission in breach.
Wildlife adds another layer
Nesting birds are protected, and destroying an active nest is an offence regardless of any tree paperwork. The practical rule is to keep significant works out of the nesting season where possible, and hedgerow cutting carries its own seasonal restriction in the growing months. Bats roosting in a tree add further protection, and a tree with obvious cavities deserves a check before work is planned. And if the reason you are considering felling is worry about the tree falling on someone, our article on who is liable when a tree falls explains where you actually stand.
How to find out what applies to your tree
The check is easier than most people expect. A number of councils in Northern Ireland publish interactive TPO maps where you can enter your address and see whether a TPO or Conservation Area touches your property. At the time of writing, Belfast, Ards and North Down, Antrim and Newtownabbey, Mid and East Antrim, and Causeway Coast and Glens all offer one, and searching your council's name together with TPO map finds it quickly. Where your council does not offer one, a single email to its planning department, with the address and a photograph, answers the same questions, and it costs nothing. Where the tree's condition is part of the case, a tree survey from an independent arboricultural consultant gives the application its evidence. It is the cheapest piece of due diligence in tree work, and far cheaper than putting things right after unauthorised work. If the tree is on a development site, the planning history will show any conditions.
If consent is needed
A tree works application succeeds on evidence. The council wants to know what is proposed, why it is justified, and what the tree's condition actually is, stated by someone independent. This is the service we provide across Northern Ireland and Ireland. We assess the tree, specify the work to the recognised standard, and prepare and submit the application to your council. And where the answer is that the tree needs nothing at all, we will tell you that too, because we carry out no tree works and have no interest in inventing any. McNamara Tree Consultancy prepares tree planning applications across Northern Ireland, Ireland and the wider UK. If a protected tree is holding up your plans, get in touch. For the wider picture, our article on five situations when a tree survey is necessary is a good place to start.
