A Tree Preservation Order applies to a specific tree where as a Conservation Area can cover a whole street and include all trees of a certain diameter trunk. This can vary between council’s so we suggest you contact them directly to find out the restrictions.
You could be breaking the law, so we would advise it really isn’t worth the risk! If you cut down, uproot or wilfully damage a protected tree or carry out works such as lopping or topping which could be likely to seriously damage or destroy the tree then there are fines on summary conviction of up to £20,000, or on indictment the fines are unlimited. Other offenses concerning protected trees could incur fines of up to £2,500.
If branches are growing over your property, you do have the right to remove them. However our advice would be to speak to your neighbour before doing any work to the tree. After all, the law states that any branches you remove from the tree remain the property of the owner and should be offered back to him/her. Finally, make sure you check that the tree is not protected (since any work completed to a protected tree without permission can lead to hefty fines as mentioned above.)
People do not generally look at their trees in great detail until a storm hits - it then becomes a priority! Our advice is to check your trees regularly - look out for fungus growing on the trunk, cavities/water collecting on damaged branches and visible roots. Don’t wait for bad weather before checking your tree. If in any doubt call a qualified tree surgeon.
Damage to buildings as a result of tree roots is far less common than many people believe. However, if it does occur the consequences can be very serious.
Subsidence is a possibility only if the local soil is shrinkable (in particular clay soils will shrink as they dry out). Damage to buildings by the growth and expansion of roots is rare and only occurs if the tree is very close to the building (within one to two metres). Damage to lightly loaded structures such as paths, driveways and garden walls is more common. If in doubt always seek professional advice.