A tree condition report is a vital document used to assess the health, structural integrity, and overall safety of individual trees. It plays a crucial role in responsible tree management, ensuring property owners meet their legal obligations while promoting the preservation of healthy trees.
This guide explains what a tree condition report involves, when you might need one, what it typically includes, and why it’s essential for landowners, councils, and developers.

Understanding the Purpose of a Tree Condition Report
A tree condition report provides a professional evaluation of a tree’s current health and structural condition. It identifies defects, diseases, or risks, and offers clear management recommendations.
Such reports are commonly used to:
- Manage tree safety near buildings, roads, and public spaces
- Support planning applications and development projects
- Assist with Tree Preservation Order (TPO) applications
- Meet insurance requirements
- Mitigate liability risks under UK civil and criminal law
Legal Duty of Care
In the UK, landowners have a duty of care under common law to prevent reasonably foreseeable risks from trees to people and property. Failure to inspect and maintain trees properly can lead to costly legal action.
A professional tree condition report provides written evidence that reasonable steps have been taken to manage tree risks.
When Should You Commission a Tree Condition Report?
Tree condition reports may be required in several situations:
After Severe Weather Events
Storms, strong winds, and heavy snow can cause hidden structural damage. A report will assess any impact and recommend necessary actions.
Before Property Development
Planning departments often require a tree report to understand how construction may affect nearby trees, especially those protected by TPOs or located in conservation areas.
Following Signs of Poor Tree Health
If a tree shows signs of decay, dieback, fungal infection, or unusual growth patterns, a condition report can diagnose the problem.
Routine Tree Management
Large estates, councils, schools, and commercial sites often schedule periodic tree surveys as part of proactive risk management.
What Is Included in a Tree Condition Report?
Each tree is recorded with its:
- Species (common and botanical name)
- Size (height and trunk diameter)
- Location (described with maps or photographs)
- Condition (visual appearance, vitality, and defects)
Visual Tree Assessment (VTA)
The first step usually involves a Visual Tree Assessment (VTA). Arborists examine:
- Surface roots
- Trunk condition (e.g., cavities, cracks, fungal fruiting bodies)
- Branch structure
- Crown density and shape
- Leaf health and bud development
Advanced Testing (If Required)
When external signs raise concern, further diagnostic tools are used:
- Sonic Tomography: Tests internal decay by measuring sound wave speeds through the wood
- Resistograph Drilling: Uses a fine needle to detect variations in wood density
- Soil testing: Assesses root zone health and stability
Risk Assessment
The surveyor evaluates:
- Likelihood of tree or branch failure
- Potential target zones (e.g., highways, footpaths, buildings)
- Overall risk level based on the tree’s health and position
Management Recommendations
Based on findings, the report may recommend:
- Pruning
- Crown reduction
- Monitoring and reinspection schedules
- Bracing
- Tree removal (if risk is unmanageable)
Legal and Safety Considerations
Good reports reference relevant legislation, such as:
- Occupiers’ Liability Acts 1957 and 1984
- Health and Safety Executive (HSE) guidelines
- Local authority tree policies and Tree Preservation Orders (TPOs)
Who Can Produce a Tree Condition Report?
Tree condition reports should only be carried out by qualified, experienced professionals, such as:
- Lantra-certified tree inspectors
- Arboricultural Association Registered Consultants
- Chartered Arboriculturists
The surveyor’s qualifications and experience ensure accurate assessments and defensible legal documentation.

Benefits of a Tree Condition Report
A tree condition report is a valuable investment for several reasons:
Legal Protection
Documented inspections help demonstrate that a landowner has taken reasonable steps to manage tree risks responsibly.
Legal Protection
Documented inspections help demonstrate that a landowner has taken reasonable steps to manage tree risks responsibly.
Risk Reduction
Identifying and addressing potential hazards reduces the risk of injury, property damage, and costly insurance claims.
Tree Preservation
Early detection of diseases or structural issues enables appropriate intervention, helping to extend the life of valuable trees.
Financial Planning
Knowing a tree’s condition allows landowners to plan maintenance or removal costs and avoid expensive emergency works.
How Much Does a Tree Condition Report Cost?
Costs vary depending on the number of trees assessed, site access, and whether specialist equipment (e.g., tomography) is required.
- Basic Visual Survey: £150–£400
- Detailed Diagnostic Survey (including tomography) : £500–£1,500 or more
It’s essential to ensure that any report is detailed enough to withstand legal or planning scrutiny.
Why Tree Condition Reports Matter
Costs vary depending on the number of trees assessed, site access, and whether specialist equipment (e.g., tomography) is required.
- Basic Visual Survey: £150–£400
- Detailed Diagnostic Survey (including tomography) : £500–£1,500 or more
It’s essential to ensure that any report is detailed enough to withstand legal or planning scrutiny.
Call 07709 051535 or Email info@londontreesurveyconsultants.co.uk to Book Your Tree Survey Today