My neighbour has their planning permit approved in 2014 and they have been granted an extension I have been advised by the council the planning permit is approved by the council as they plan to build the garage on the boundary line the length will be a continuous wall of 11 metres town house 1 will have the height of 2.7 metres and two house 2 will have the height of 3.2 metres advise from council neighbour can legally do this. What can I do or specify if I do not want any guttering overhanging onto my land what about damage to my land when they erect on the boundary line. Can I still request they build with the 200 mm distance. As building on the boundary they have written to me to seek permission to come onto my land and to remove fence please advise what can I do as this will be an eyesore for me