Commercial law, litigation, contracts, IP, property law
1\ The shared wall becomes a party wall and the boundary is normally a 50/50 split along the party wall.
2\ I believe you can make your new boundary on the otherside of the wall to become a boundary wall.
you need to contact your local council for direction on this issue, as they may only allow the creation of a partywall.
Ralph mouth 2017-10-03 11:53:53