BS5837 Tree Surveys, Arboricultural Impact Assessments and Arboricultural Method Statements in the Manchester Area

Our BS5837 Tree Report Process

BS5837 (or British Standard 5837:2012) is the essential guidance for the management and protection of trees during development projects, whether that be a small extension at a private residence or the construction of 1000+ new homes. This standard establishes a framework for the assessment of any potentially affected trees & relates this assessment to the construction activities ensuring that the trees and the environmental/amenity value that the trees provide are preserved while allowing for sustainable development.

Key Components of BS5837

Tree Surveys for Planning Permission and Development

Tree surveys must be conducted by qualified professionals and include the following elements:

• Tree Identification: Detailed records of species, age, height, crown dimensions and trunk diameter.
• Tree Identification: Detailed records of species, age, height, crown dimensions and trunk diameter.
• Health Assessment: Evaluation of the physiological condition and structural integrity of each tree.
• Health Assessment: Evaluation of the physiological condition and structural integrity of each tree.
• Retention Value: Classification of trees into categories based on the BS5837:2012 framework.
• Retention Value: Classification of trees into categories based on the BS5837:2012 framework.

Arboricultural Impact Assessments (AIA)

The impact assessment process involves:

• Identification of Constraints: This stage uses the data collected in the tree survey to create a tree schedule and a tree constrains plan. The plan accurately shows the trees positions, their root protection areas, stems and canopies on a plan (usually based on a topographical survey). This plan will help the design process by showing how the trees may constrain a development if the trees are to be retained.
• Evaluation of Impacts: The proposed designs are then overlaid onto the tree constraints plan to show how the design will impact he trees on the site. Assessing both direct impacts, such as root damage, canopy pruning requirements, and indirect impacts such a shading issues will be included in this phase.
• Mitigation Strategies: Developing strategies to minimise adverse effects, including re-routing of services and adjusting construction techniques or suggesting the relocation of some structures will be included. Outlining any trees to be removed and required mitigation planting will be a core part of this section.

Arboricultural Method Statements (AMS)

The Arboricultural Method Statement is created when the designs have been finalised. The idea behind AMS is to outline how the trees are going to be protected during the construction phase. This document will normally be the document of most interest to the local planning authority, as it will normally form part of the condition of any permission. The reason for this is that it will outline what trees are to be removed, what is to be retained and how the retained trees are to be protected. This document must be communicated to the site contractor so they know how to protect the trees during the construction. This document includes the following:

• Tree Removal Plans: Detailed diagram showing trees to be removed and retained. This plan will also show areas of the trees crowns to be pruned.
• Monitoring Protocols: Procedures for ongoing assessment throughout the construction process, ensuring any unforeseen impacts are promptly addressed.

Compliance and Best Practices for Development Planning Reports

Adhering to BS5837:2012 is not merely a regulatory requirement; it is a commitment to sustainable development that respects natural assets. It encourages collaboration among architects, developers, and arboriculturists to foster an integrated approach to land use planning. By prioritising tree conservation, developments can enhance biodiversity, improve air quality, and create visually appealing environments that benefit both current and future generations.

Matthew Lally has been working with trees since 2005, if you would like to call on his expertise for your development then please don’t hesitate to get in touch to discuss your planning requirements.

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