I wish councils could be helpful if you want rid if a dangerous tree that's on a neighbours property. In our old rented house we had a tree leaning dangerously towards the house from the garden at the back. I am certain it's a matter time until it falls, but the owner of that house (a landlord, not living there) wouldn't respond to anything, and the council are powerless. I'm not anti tree by any stretch, but this bad boy was a massive Eucalyptus (I think) was at an angle, and also covered our garden with leaves all year around, and blocked light. That all said, given how our previous landlords treated us, I now hope it falls and smashes through the back of their house (when no Tennant is home). Sorry, totally off topic.