Tree Preservation Orders, often called TPOs, are legal protections placed on trees by local councils. They are common across London and can directly affect what you can and cannot do with trees on your land.
If you own property or are planning a development, understanding TPO rules is essential. Failing to follow them can lead to delays, rejected planning applications, or serious fines.
This guide explains how TPOs work, what restrictions apply, and how to move forward with confidence.
What Is a Tree Preservation Order (TPO)?
A Tree Preservation Order is a legal order made by a local planning authority to protect trees that provide public value.
A TPO can apply to:
- Individual trees
- Groups of trees
- Woodlands
- Trees within a defined area
Once a tree is protected, you cannot carry out work without permission from the council.
This includes:
- Cutting branches
- Pruning or shaping
- Felling or removing the tree
- Damaging roots
TPOs are designed to protect trees that contribute to the local environment, landscape and community.
Why Trees Are Protected in London
London has a high demand for development, which increases pressure on green spaces. TPOs help balance development with environmental protection.
Trees may be protected because they:
- Improve air quality
- Support wildlife habitats
- Enhance streets and public spaces
- Add visual value to an area
- Help manage flooding and climate impact
Even trees on private land can be protected if they benefit the wider public.
How to Check if a Tree Has a TPO
Before starting any tree work or development, you should confirm whether a tree is protected.
You can check by:
- Contacting your local council
- Reviewing planning records
- Hiring a professional tree surveyor
A tree survey will confirm protection status and provide clear guidance on what is allowed.
This step is critical for avoiding legal issues later.
What Work Requires Permission Under a TPO
If a tree is protected, you must apply for permission before carrying out any work.
Permission is required for:
- Tree removal
- Crown reduction or thinning
- Root cutting or excavation near the tree
- Structural pruning
The application must include clear details of the work and reasons for it.
Work carried out without approval is considered a legal offence.
Penalties for Ignoring Tree Preservation Orders
Ignoring a TPO can lead to serious consequences.
Penalties may include:
- Large fines
- Legal action
- Requirement to plant replacement trees
- Delays to development projects
In some cases, fines can reach tens of thousands of pounds depending on the damage caused.
This is why it is always safer to seek professional advice before starting any work.
How TPOs Affect Property Development
For developers, TPOs can influence the layout and feasibility of a project.
Protected trees may:
- Restrict where you can build
- Affect foundation design
- Require changes to site layout
- Delay planning approval
A tree survey, such as a BS5837 report, is often required during planning.
This report will:
- Identify protected trees
- Define root protection areas
- Recommend how to protect trees during construction
Planning without this information can result in rejected applications.
Root Protection Areas and Construction Impact
Each protected tree has a Root Protection Area, known as an RPA. This is the zone around the tree that must remain undisturbed.
Within this area, you cannot:
- Dig foundations
- Store materials
- Change ground levels
If construction affects this area, the tree may become unstable or die.
A professional tree consultant will map RPAs and advise how to design around them.
When Permission May Be Granted
Councils may approve work on protected trees if there is a valid reason.
Common reasons include:
- The tree is dead or dangerous
- Structural damage to property
- Necessary development with mitigation measures
- Tree health issues
Applications supported by a professional tree report have a higher chance of approval.
How a Tree Surveyor Helps with TPO Trees
Working with a qualified tree surveyor makes the process easier and safer.
A tree surveyor can:
- Confirm TPO status
- Prepare reports for planning applications
- Provide risk assessments
- Recommend safe and compliant tree work
- Support TPO applications
This helps avoid delays and ensures your project stays compliant.
Best Practice for Property Owners and Developers
If you are dealing with trees on your land, follow these steps:
- Check protection status early
- Do not carry out any work without approval
- Get a professional tree survey
- Plan development around protected trees
- Submit clear and accurate applications
Taking these steps reduces risk and helps your project move forward smoothly.
Conclusion
Tree Preservation Orders play a key role in protecting London’s trees. They also have a direct impact on property owners and developers.
Understanding the rules, seeking expert advice and planning correctly will help you avoid costly mistakes.
If you are unsure about a tree on your site, a professional tree survey is the safest place to start.