BS5837: Tree Surveys

BS5837 Development surveys

Protecting existing mature trees on development sites saves money whilst increasing property values providing new builds with a mature feel. The value such trees provide is almost impossible to replace and is therefore worth protecting. These trees also provide important habitats for species including nesting birds, bats and other wildlife protected by legislation, helping developers score BREEAM points and benefit future communities.

The Town and Country Planning Act (1990) places a duty on the Local Planning Authority to consider the impact of development proposals on existing trees within a site, whether subject to statutory protection or not. British Standard 5837:2012 Trees in Relation to Design, demolition and Construction- Recommendations provides current Best Practice advice. This standard requires that arboricultural advice is obtained at the very outset of any development, and that advice and supervision is continued through to final completion.

Land pre-purchase survey

Oakfield can carry out a pre -purchase walkover survey so as to assess the potential arboricultural issues and conflicts that may arise for development purposes. This information can then be used to aid in any negotiations with regards to land purchase. This is particularly useful where trees are an obvious constraints for example land with woodlands or large number of individual mature trees.

BS 5837 : 2012 Tree Survey

Oakfield will undertake an initial BS 5837 tree survey and collect data of all trees that have potential to be affected by any proposed development, this will include any trees up to a distance of 15m of the site boundaries. Trees will be surveyed for their overall arboricultural, amenity and landscape value with this data then formatted into an easy to read plan to give a design tool to help inform site layouts. If followed this will greatly reduce time spent amending any layouts that may not be compatible with tree constraints.

Arboricultural Implications Assessments

This report is required for submission and informs the LPA on how the layout will achieve the successful healthy preservation of those trees to retained. The report will give advice on the following issues that generally arise and how they will be overcome

  • Foundations

  • Demolition

  • Soil regrading

  • Boundary treatment

  • Road and drive construction over tree roots

  • Installation of underground and overground services

  • Tree removal

  • Ground compaction

  • General construction activities

The report will also comment where required on other matters that may have a bearing on additional pressures to remove trees such as

  • Shading issues

  • Leaf litter, fruit fall

  • Future tree growth potential

Such conflicts can  give rise to unacceptable comments from the LPA but we at Oakfield will flag these issues early on and offer advice to overcome such issues so as to limit delays.

Accompanying the AIA is an Arboricultural Method Statement (AMS) and Tree Protection Plan (TPP). Both are preliminary documents that will in turn become site specific documents to be given to all construction contractors and advises where and when any tree protection measures must be installed whilst detailing any specialist construction methods that are to be used. The AMs and TPP documents are occasionally required as as standalone documents to clear planning conditions.

Contact Info

Call: 01953 887220