Planning permission is not required provided that:
1. The wall or fence is not more than 2 metres in height anywhere on your property except where it adjoins a road or footpath. In this case, the height is restricted to 1 metre.
2. You don’t live in an open plan/shared surface type of development. In which case always consult your local area planning office as there may be a condition attached to the planning permission for the estate which would override this guidance.