A BS 5837 tree survey, arboricultural impact assessment, and method statement are essential documents to the planning process when dealing with trees on or near a development site in the UK. These reports help ensure that trees are appropriately considered and protected during a development project’s planning and construction phases. Here’s an overview of each component:
- BS 5837 Tree Survey:
- A BS5837 tree survey is conducted by a qualified arboriculturist.
- It involves identifying and assessing all trees of 75mm and above stem diameter located on or within 15m of the development site as defined in the British Standard BS 5837:2012, “Trees in Relation to Design, Demolition, and Construction.”
- The survey considers tree species, height, crown spread in four cardinal points, stem diameter in breast heigh (DBH), life stage, physiological and structural condition condition and observation notes.
- Trees are categorized into different retention categories (Category A, B, C and U) based on their quality and health. Category A trees and Category B trees are typically those that should be retained; Category C trees removal shall not pose a constraint to the development, and Category U trees are those that are unsuitable for retention due to their physiological or structural condition.
- The survey also calculates the Root Protection Areas (RPAs) of all trees, except Category U trees, which is the minimum area around a tree deemed to contain sufficient roots and rooting volume to maintain the tree’s viability and where the protection of the roots and soil structure is treated as a priority.
- Arboricultural Impact Assessment:
- The Arboricultural Impact Assessment (AIA) evaluates how the proposed development will affect the trees identified in the BS 5837 tree survey.
- It considers factors such as the proximity of development to trees, changes in ground levels, excavation, and construction activities that could impact the health and stability of trees.
- The AIA aims to minimize adverse impacts on trees and ensure their long-term survival during and after construction.
- Method Statement:
- The Method Statement outlines specific procedures and precautions that require implementation during construction to protect and manage trees on the site.
- It includes details on tree protection measures during construction phases, including excavation, foundation work, and landscaping.
- The Method Statement may specify the use of protective fencing, root protection measures, pruning guidelines, and any necessary arboricultural supervision during construction.
These documents are critical for obtaining planning permission for your development project, especially if it involves trees that may be affected by the construction process. Local Planning Authorities in the UK typically require these assessments to ensure that trees are conserved and protected following BS5837 guidelines.
To carry out these surveys, it’s essential to engage a qualified arboriculturist or tree consultant with experience in BS 5837 assessments. We at MMEnvironmental Ltd. ensure that our services meet the regulatory requirements of any LPA in the country, and our reports are insured by planning consent or a back policy. We also provide last-minute services with the fastest turnaround in the UK. Check out our page mmenvironment.co.uk/our-services/tree-surveys/