Just came home from work to find my neighbours have installed a large (probably 10+ feet tall) tree in their garden. It's so big it looks ridiculous and is blocking out the only patch of sun that my garden got. (mature trees in the street at blocking the rest.) I'm really not happy buy I'm not sure if I'm being unreasonable.
I can't post pics because they're all sat out looking at it. Aibu? Can I do anything?