The European Arboricultural Standard (EAS 06:2025)

As arboricultural professionals, we are always striving to improve the ways in which trees are managed and protected within the development process. With the recent publication of EAS 06:2025 – The European Arboricultural Standard, we are presented with a progressive approach that builds on and extends the framework laid out in BS5837:2012. This new standard provides a more thorough, long-term view on tree protection and management, offering a host of updates that reflect modern challenges and priorities in construction and sustainability.

One of the most notable distinctions between EAS 06:2025 and the existing BS5837 is the shift towards a more comprehensive approach. While BS5837 predominantly focuses on the protection of trees during construction, the European standard considers every stage of a tree’s lifecycle, from the planning and design phases to ongoing aftercare. This ensures that trees are safeguarded not only during construction but also for years to come.

Furthermore, EAS 06:2025 takes into account the environmental and ecological significance of trees, recognizing their role in biodiversity and as key components of green infrastructure. This approach links tree protection to larger sustainability efforts and EU environmental policies, making it a more forward-thinking standard that aligns with modern regulatory and environmental goals.

EAS 06:2025 also introduces Tree Impact Assessments (TIAs)—a more detailed and structured way of assessing how construction projects may affect trees. This goes beyond simply identifying risks; it helps us understand the broader implications of development on tree health and surrounding ecosystems. The TIA method gives developers and consultants a much clearer picture of the potential impacts, allowing for more informed decisions.

In addition to the impact assessments, the new standard presents tree valuation methods. Tree valuation methods in EAS 06:2025 provide a systematic approach to assessing the monetary and ecological value of trees. These methods consider factors such as a tree’s size, age, species, health, and its role in the local ecosystem, helping to determine its importance not only as a natural asset but also in terms of its contribution to the overall environmental and economic value of a development project. These tools are important for quantifying the contribution of trees to a project, both in ecological and economic terms. These methods are especially useful for protecting mature or valuable trees and ensuring they are properly valued within the planning process.

As the construction industry evolves, so too must our approach to tree protection. EAS 06:2025 acknowledges new construction techniques and technologies that weren’t fully considered in BS5837.

Modern construction techniques include a variety of methods and technologies that help minimise the impact on the environment and improve the sustainability of building projects. Some key examples relevant to tree protection in EAS 06:2025 include:

1. 3D Laser Scanning and Mapping: This technology allows for highly accurate mapping of a site, including the root systems of trees, enabling precise planning to avoid damage during construction.
2. Root Protection Systems: These are advanced methods designed to safeguard tree roots from compaction, damage, or disruption during construction activities, using techniques like cellular confinement systems or porous paving to protect the root zone.
3. Tree Root Barriers: Physical barriers or trenches that redirect tree roots away from construction zones to prevent damage to both the tree and the built structures.
4. Air-Spade Technology: Air-spading uses high-pressure air to excavate around tree roots without causing harm, enabling more accurate and less intrusive digging near trees.
5. Geotechnical Solutions: These include using lightweight materials or hydraulic lifts for foundations to reduce the need for deep digging and heavy equipment near trees, minimizing root disruption.

These technologies and techniques help ensure that trees are protected in urban and construction environments, allowing for better integration of green spaces with development projects.

The new standard goes beyond just protecting trees during construction; it’s about sustaining and enhancing the environmental value of trees for future generations. EAS 06:2025 aligns with sustainability initiatives by emphasising the role of trees in urban areas.

By recognising the vital role trees play in carbon sequestration, EAS 06:2025 underscores their importance in mitigating climate change by absorbing carbon dioxide from the atmosphere and storing it in their biomass. Additionally, trees significantly improve air quality by filtering pollutants such as nitrogen dioxide and particulate matter, providing cleaner, healthier air for urban populations. The standard also acknowledges trees’ role in enhancing biodiversity, as they provide habitats for a wide range of species, supporting ecosystems that rely on them for food, shelter, and migration corridors. By integrating these benefits into the framework for tree protection, the standard aligns tree management with broader green infrastructure goals, promoting healthier, more sustainable environments in urban and rural settings alike.

This focus on sustainability is not only about the immediate impact of development but also about the long-term benefits trees provide to communities and ecosystems. This forward-thinking mindset encourages developers and arborists to consider trees as integral elements of green urban planning.

• Full Lifecycle Tree Management: The standard covers the entire lifecycle of trees, from design to long-term care, ensuring that trees are protected and nurtured at every stage.
• Tree Impact Assessments (TIAs): These assessments provide a more detailed look at how construction might affect tree health and surrounding environments, going beyond the traditional risk assessments.
• Tree Valuation Methods: The introduction of valuation methods helps quantify the economic and ecological value of trees, ensuring they are properly recognised in development plans.
• Modern Construction Technologies: EAS 06:2025 incorporates new techniques and technologies such as root protection systems and 3D scanning to improve tree protection during construction.
• Sustainability Focus: The standard places emphasis on trees as key elements of green infrastructure, linking their protection to larger sustainability goals in urban planning.

The introduction of EAS 06:2025 represents a significant leap forward in the way we approach tree protection and management. With its broader, more integrated view on tree care, environmental impact, and sustainability, it offers a comprehensive solution that will shape the future of tree management across Europe.

As we look towards the upcoming revisions of BS5837, it’s clear that the principles outlined in EAS 06:2025 could be adopted to improve how we manage trees in both urban and rural environments. By embracing this forward-looking standard, we can ensure that trees continue to thrive in our increasingly built-up world, contributing to healthier, more sustainable environments for generations to come.

For more information on EAS 06:2025 and how it can impact your projects, click here .

At Holly Arboriculture, we are excited to integrate the principles of EAS 06:2025 into our work. For more information, contact us here.