Trees in conservation areas

All trees in conservation areas are protected if they have a stem diameter of 75 millimetres measured at 1.5 metres from ground level.

In general, it is an offence for anyone to undertake work to a tree in a conservation area without giving us 6 weeks written prior notice. We use this to decide if the tree(s) should be protected from proposed work by a Tree Preservation Order (TPO).

Oxford City TPO and Conservation Area Locations

We have over 250 TPO’s and 18 Conservation Areas within the Oxford boundary.

You can see if a tree is protected by a TPO or in a Conservation Area on our map

Giving notice of tree works

To give notice of work to tree(s) in a conservation area complete the application for tree works on the Planning Portal website or write to us giving;

  • Details of the location of the trees to which the notice relates (by reference to a plan if necessary)
  • Details of the tree work operations being proposed 

You need to be clear about exactly what work you are planning. Vague proposals to "prune" or "cut back" are not adequate. You are advised to present a clear proposal and should consider discussing ideas with an arboriculturalist before submitting a notice.

It is helpful if you also provide:

  • Reason for the work, with reference to supporting evidence if necessary
  • Details of ownership of the trees

Give notice of tree works

It is not an offence to undertake work to a tree in a Conservation Area that is dead and dangerous. However, the burden of proof that work is exempt from the need for prior notice because of the condition of the tree(s) lies with the person carrying out the work. Anyone proposing to do work under this exemption is strongly advised to contact us for advice before hand.