At my request the council placed a tree preservation order on some mature beech and horse chestnut trees in my garden four years ago. If they were blown on to buildings across the boundary would I be liable for any damage caused?
You should carry out regular checks on the trees and ensure that any dead or dangerous growth is removed. Provided you have done this (and can prove it) it’s unlikely you could be held liable for any damage they caused. If on the other hand your neighbours warned you the trees were in poor condition and you did nothing you could be liable. Beware of doing anything major to your protected trees without first consulting the council.