Normally the foundations of a house will extend 150mm or 6" away from the wall built on them and the edge of the the foundation would also normally indicate the boundary.
So the neighbours pipe could be within their boundary.
It wasn't the case in older properties as the foundation was only the width of the wall above it.
You will almost certainly need a Party Wall agreement, which the neighbour would need to agree to, as you will be excavating within 3 mtrs of their foundations and most likely below
Hi thank you for reply. The pipe is over the boundary line as the boundary line in this case is the join of our drive and the wall of their house. Its a very strange layout on all the houses on this street unfortunately.Normally the foundations of a house will extend 150mm or 6" away from the wall built on them and the edge of the the foundation would also normally indicate the boundary.
So the neighbours pipe could be within their boundary.
It wasn't the case in older properties as the foundation was only the width of the wall above it.
You will almost certainly need a Party Wall agreement, which the neighbour would need to agree to, as you will be excavating within 3 mtrs of their foundations and most likely below
The side structure may possibly only be conservatory panels so we've been told there shouldn't be a need for any party wall agreement.
As mentioned in previous comment, i'm not too worried about it in regards to the possible new structure, its more a general concern about possible leakage and just whether anyone agrees if it should be there or not. Cars are parked underneath daily and my son plays on the driveway too. Really just trying to find out if we are right in seeing it as being incorrectly placed.
I'm so grateful for all advice and comments so far