My Neighbour is building an extension at the rear of a mid terrace house, single storey extension running width of property from boundary to boundary.
My drain exits via his property and during the works he has removed the existing drain on his side of the boundary, lowered the drainage level and left what appears to be a very shoddy arrangement behind him.
I consulted with the local authority who are of the view that all common drainage is the responsibility of all owners and therefore shouldn't be interfered with without all parties agreeing.
I then engaged a consulting engineer to do a report and he is of the view that my neighbour can do what he likes on his side of the boundary provided the new system works.
Adherence to the building regulations doesn't seem to be necessary or required.
I consulted a solicitor who isn't sure yet what to do but wrote to neighbour after my efforts failed.
My neighbour has covered the whole drainage system with concrete and produced a letter from an engineer saying that the drainage is to best practice.
Does anyone know if there is any legislation dealing with common drainage?
Do the building regulations have any meaning?
Any comments would be very welcome.