The right to light only applies in respect of rooms, not garden.
If there evergreen trees (Leylandi for example) then if they are over 2 m high, you can file a nuisance trees complaint with the local authority to have them cut down to 2 m. It doesn’t apply to deciduous trees.
You are allowed to cut off any branches which overhang the boundary and if you are not capable or don’t want to do that, you can compel the council to do it or get it done yourself and charge the council for the money.
You may have a claim in common law nuisance if the trees are quite simply a nuisance because they are encroaching upon your property.
You may potentially have a claim against the local authority if the trees devalue the house would need to get a valuation for the house assuming that the trees were not there or were trimmed as opposed to how they are now.
Can I clarify anything for you?
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