Works to Trees and Protected Trees
GOV.UK - Protected trees: A guide to tree preservation procedures gives a brief introduction to tree protection procedures and answers some of the most common questions asked by tree owners and the public.
More detailed guidance is in GOV.UK - Tree preservation orders: a guide to the law and good practice. Since 1946, Chiltern Area and its predecessors, Amersham Rural Council and Chesham Urban Council, have sought to preserve trees of important amenity value by making them the subject of a Tree Preservation Order (TPO).
If you want to lop or cut down a tree protected by a Tree Preservation Order (TPO) you would normally be required to submit an application and obtain consent from the Council. If you cut down a tree which is protected you could face a fine of as much as £20,000 for each tree and you will also be asked to replace it.
In extreme cases, you can do emergency work on dead or dangerous trees protected by a TPO. However, it is advisable to check with the Council's Tree and Landscape Officer in Planning Services before any works are undertaken (Tel: 01494 732041 or 732031).
Trees may also be protected by conditions in planning permissions. You are advised to check with Planning Services before carrying out any work.
If you are refused consent you can appeal to the Planning Inspectorate
In a Conservation Area six weeks' written notice must be given to the Council before any tree, not protected by a TPO, is cut down, lopped or topped. This period gives the Council an opportunity to decide whether or not to place a TPO on the tree(s) concerned.
Applications / notifications may be made on special forms or by letter.
A Planning Advice Note - A Householder's Guide to Good Tree Maintenance - is available free of charge from the Planning Department