What is a BS5837 Tree Survey? A Simple Guide

When construction, demolition, or development could affect trees, an arboricultural assessment known as a BS5837 tree survey is conducted. The survey ensures the protection of trees and the implementation of appropriate safety measures before work commences.

Local planning authorities often ask for BS5837:2012 tree surveys as part of a planning application. The goal is to balance development needs with tree protection and environmental care.

What Is a BS5837:2012 Tree Survey?

BS5837:2012 is the British Standard called Trees in Relation to Design, Demolition and Construction Recommendations. It explains how trees should be assessed near development and ensures that all relevant aspects are considered. This includes species, condition, height, crown spread and stem diameter. Surveys may also include a desktop study to identify site-specific protections such as Tree Preservation Orders (TPO’s).

The survey identifies which trees should be retained, which may require removal, and what protection measures are necessary during construction. Conducting the survey early in the

design process prevents damage and ensures compliance with planning requirements. 

When Is a BS5837 Tree Survey Needed?

A BS5837 survey is typically required when planning any project where trees are present on or near the site. Even if no trees are removed, construction activity can impact them through excavation, changes in ground levels, or machinery movement.

Surveys are common for small extensions, larger residential developments, commercial projects, and redevelopment sites. Early commissioning helps identify tree constraints and prevent costly design changes.

Why Are BS5837:2012 Tree Surveys Important?

Tree surveys are essential for development that may affect trees. They ensure planning:

• Planning Compliance: Surveys are often required by local councils as part of planning applications.

• Environmental Protection: Preserving trees and green spaces which support sustainable development.

• Damage Prevention: Identifying root protection areas and assessing tree health helps avoid construction damage.

• Mitigation and Protection: The survey provides recommendations for tree protection measures, including barriers and careful management of nearby construction activities. 

What Information is Collected?

A qualified arboricultural consultant records detailed information about each tree. This includes species, height, trunk diameter, crown size and structural condition. The Root Protection Area (RPA) is also identified to indicate areas that must remain undisturbed. This information is included in a tree constraints plan that guides site design and construction activity.

How Are Trees Categorised?

Trees are graded by quality and value to determine their importance. Category A trees are high quality with a long life expectancy. Category B trees are of moderate quality but still valuable. Category C trees have lower quality and limited future potential. Category U trees are in poor condition and generally recommended for removal. This system helps planners and developers make informed decisions about tree retention. 

Who Should Carry Out a BS5837 Survey?

Only licensed and experienced arboricultural consultants should conduct BS5837 surveys. They understand tree biology, structural assessment and planning regulations to ensure their survey meets local authority standards. Their expertise ensures practical and effective recommendations to protect trees while allowing development to proceed smoothly. 

Why Should You Arrange a BS5837 Tree Survey?

BS5837 tree surveys are vital for any project that could impact trees. They identify important trees, guide site design and provide recommendations for protection. Commissioning a survey early reduces planning risks, prevents unexpected costs, and ensures projects comply with regulations. Most importantly, they help preserve valuable trees so they can continue providing long-term environmental and visual benefits. 

Get in touch with our team today to arrange your survey and ensure your development is fully compliant and your trees are protected. Our experts can provide reliable guidance and practical solutions to support your project every step of the way.