Why Tree Surveys Are More Important Than Ever for Planning Applications in 2026

If you're planning a development project in 2026, whether it's a house extension, residential scheme, commercial development or infrastructure project, there's one thing becoming increasingly clear.

Tree surveys are no longer just a planning requirement, they're a crucial part of achieving planning success. At North West Tree Management, we're seeing more planning applications delayed, redesigned, or even refused because trees weren't properly considered during the early stages of a project.

The Growing Importance of Trees in Planning

In recent years, local planning authorities have placed greater emphasis on protecting existing trees and enhancing biodiversity.

With Biodiversity Net Gain (BNG) now a key consideration for most developments in England, trees and hedgerows can have a significant impact on planning decisions. Mature trees provide ecological value, visual amenity, carbon storage, and wildlife habitat, making them an important part of any site's environmental assessment.

As a result, developers are increasingly being asked to demonstrate how existing trees will be protected throughout the design and construction process.

What Is a BS5837 Tree Survey?

A BS5837 Tree Survey is the industry-standard survey used when trees may be affected by development.

The survey records:

• Tree species

• Height and canopy spread

• Age and condition

• Estimated life expectancy

• Root Protection Areas (RPAs)

• Retention categories

• Constraints to development

The information is then used to create a Tree Constraints Plan, allowing architects and designers to understand how trees may influence the layout of a site.

Why Early Tree Surveys Save Time and Money

One of the biggest mistakes we see is developers commissioning a tree survey after plans have already been drawn. This can create significant problems if proposed buildings, roads, driveways or services fall within Root Protection Areas.

By undertaking a tree survey at the beginning of a project, potential constraints can be identified before substantial design costs are incurred.

Early surveys help:

• Reduce planning delays

• Avoid costly redesigns

• Protect valuable trees

• Improve planning outcomes

• Support Biodiversity Net Gain objectives

Common Tree-Related Planning Issues

Some of the most common issues encountered during planning applications include:

Development Within Root Protection Areas

Tree roots often extend much further than people expect. Building too close to retained trees can damage root systems and lead to planning objections.

Protected Trees

Trees may be protected by Tree Preservation Orders (TPOs) or be located within Conservation Areas. Special permissions may be required before any work can take place.

Tree Condition Concerns

Poor-quality or unsafe trees may require additional assessment before planning approval is granted.

Biodiversity Considerations

The removal of mature trees can significantly affect biodiversity calculations, potentially requiring mitigation measures elsewhere on the site.

More Than Just a Planning Requirement

A professional tree survey doesn't simply satisfy planning requirements.

It helps create developments that work alongside existing trees rather than against them.

Retaining high-quality trees can improve the appearance of a development, increase property values, provide natural shading, and enhance biodiversity for decades to come.

Professional Tree Surveys Across the UK

North West Tree Management provides professional arboricultural services throughout the UK, with a primary focus on the North West of England and North Wales.

Our services include:

• BS5837 Tree Surveys

• Tree Condition Surveys

• Arboricultural Impact Assessments

• Tree Protection Plans

• Arboricultural Method Statements

• Mortgage and Insurance Tree Reports

• Arboricultural Consultancy

Whether you're a homeowner, developer, architect, planning consultant or landowner, our experienced arboricultural consultants can provide the advice and reports needed to support your project.

Need Advice on Trees and Planning?

If your project involves trees, obtaining professional arboricultural advice at the earliest opportunity can save significant time, money and frustration later in the planning process.

Contact North West Tree Management today to discuss your project and arrange a professional tree survey.