Case Studies
A BS5837 Arboricultural Survey for a 2 Storey Dwelling
A private home owner planned to build a two storey dwelling on a plot with several mature trees in close proximity, that are protected by Tree Preservation Orders (TPO).
To comply with local planning authorities and ensure the protection of the protected trees, an Arboricultural Survey in accordance with BS5837:2012 was commissioned. The survey aimed to assess the impact of the proposed construction on the existing trees and provide recommendations for their retention, protection, or removal.
Objectives
The primary objectives of the BS5837 arboricultural survey were to identify and assess all trees on or adjacent to the proposed development site, categorize the trees based on their quality and value using the BS5837 classification system, and provide recommendations for the protection of retained trees during the construction process.
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The survey also aimed to inform the design process by identifying tree root protection areas (RPAs) and recommending appropriate construction methods near these areas to minimise potential damage to the trees. Additionally, the survey sought to identify any trees that may need to be removed due to poor condition or potential conflict with the proposed development.
Outcome
The arboricultural survey identified a total of 4 trees and 1 group of trees on the site, with 1 being of high quality (Category A) and 2 of moderate quality (Category B), indicating their importance to the local environment and landscape. The remaining 1 tree and 1 group were categorized as low quality (Category C) due to their low amenity value and general quality. No Category U trees, which would require immediate removal, were identified.
Based on the survey, the site layout was adjusted to avoid encroachment into the RPAs of the Category A and B trees. 1 Group of Category C trees had to be removed to facilitate the development. Protective fencing and ground protection measures were recommended to be installed before the commencement of any site work to prevent damage to the tree roots and trunks.
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The outcome of the survey led to a successful planning application, with the local planning authority approving the development on the condition that the recommended tree protection measures were implemented. The retained trees continued to contribute to the local landscape and biodiversity, enhancing the aesthetic and environmental quality of the new dwelling. The careful consideration of the trees during the design and construction phases ensured that the development was sustainable and in harmony with the existing natural environment.
A Category B tree on the site