Mark Nankervis Tree Services offers Arboricultural consultancy services to commercial organisations as well as private individuals. The depth and range of help we can provide has been considerably increased by entering into a partnership with Tim Scott-Ellis to form the new Evolve Tree Consultancy. Help can be provided in the following areas:
Trees and Developments
Trees on proposed development sites are a material consideration and Cornwall Council requires these trees to be assessed by an arboriculturist.
British Standard 5837:2005 Trees in relation to construction – Recommendations provides a framework through which to assess the quality and future potential of trees on a site. The standard also provides recommendations to guide suitable protection measures for those trees being retained. The aim of this process is to achieve a long term sustainable integration between trees and new developments.
The report is compiled following a site survey and depending on the size and complexity of development will incorporate some or all of the following elements:
Tree Constraints Plan
This helps to inform the design layout in terms of trees' Root Protection Areas, space requirements, shading issues, dominance etc.
Tree Protection Plan
A scale drawing showing trees being retained and tree and landscape protection measures.
Arboricultural Implications Assessment
In order to identify and mitigate development impacts on existing trees.
Our aim is to help our clients to achieve their goals and succesfully meet the Council's planning requirements whilst maximising the positive potential of trees to enhance the new development.
The sense of marturity and amenity offered by trees can considerably raise the marketability and value of a property.
Tree Preservation Orders (TPOs) and Conservation Areas
Council protection does not exist to prevent tree management, its purpose is to promote good tree management.
Where there is a conflict of interests between the tree owner and the tree there is often an acceptable solution which alleviates the problem through good arboricultural practice.
Poor arboricultural practice such as 'topping' a tree often results in an unsightly high maintenance tree which grows faster and thicker with increased risk of decay.
We undertake checks to establish if a tree is protected and can provide reports and advice as well as preparing the applications.
Where works are consistent with good arboricultural practice, as described in British Standard 3998:2010 Tree Work – Recommendations, gaining permission is generally straightforward.
Where a tree is causing direct damage to structures, or is dead, imminently dangerous or imminently dying, works to alleviate these issues are exempt from the TPO, but we normally inform the Council with a written 5 day notice as a courtesy and take photographs to demonstrate the tree condition.
Where emergency works are undertaken to alleviate immediate danger a phone call to the Council is made and photographs are taken as evidence.
Even where trees are not protected they still form a significant backdrop to the owner's everyday life. Good management enhances the benefits and reduces the disadvantages of trees in our everyday environment.
Tree Condition Reports
As a tree owner you have a legal responsibility for the trees on your property, primarily under The Occupiers Liability Act. This act requires you to underake reasonable measures to prevent your trees providing an unnacceptable hazard to the Health and Safety and property of people who could be harmed by them.
What is reasonable varies greatly and mainly depends on the level of injury or damage that could occur if the tree failed and how likely such failure is. The risk of tree failure is often less than people fear. The anxiety itself is often very real.
We undertake tree condition reports to establish both the health of the tree/s and their structural soundness.
These reports are often used to fulfill the requirements of Insurance companies, to help inform disputes between neighbours over the safety of trees, or as guidance on management for valued trees which have some structural weakness.
The significance of diseases, fungi and damage are another area where guidance is provided.
As a licensed Quantified Tree Risk Assessment user. An assessment under this system can help to inform the Risk of Harm associated with particular trees, taking into account the value of damage or severity of injury most likely to occur should the tree fail, the likelihood of this happening, and the size of the tree, or part of tree most likely to fail.
This system is particularly useful, efficient and cost effective when assessing large populations of trees and much valued individual trees which have obvious defects.
No tree is structurally perfect and all trees of any stature have a potential to cause harm. A condition report will focus on the most significant defects and take into account surrounding targets. Recommendations of any actions required to address unnaceptable risk of harm will be made.
Woodland Surveys
A woodland should be an interesting and attractive habitat, rich in wildlife, beautiful to visit whilst producing a valuable suistainable resource and a multitude of environmental benefits.
We provide Annual, 5 year and 10 year action plans to enhance the quality safety and sustainability of woodlands.