Neighbour diverted their downpipe onto our extension

[weq4]

Hi,
the neighbour has built extension next to ours and I noticed that the downpipe from gutter has been cut short and diverted so it pours out onto on our flat roof extension.
What do people advise I can do, please?

[Dinosforall]

Talk to them? Take some photos too.

[BlueSlice]

I would talk to them but very much blame the builders and give them a chance to claim they knew nothing about it. Then tell them to get their builders to rectify it.

[Itsrainingnotmen]

If you don't want confrontation ring the council planning first. Your cf ndn may have intended this to happen.. Builders may think you agreed to it.

[Bluntness100]

Speak to them first obviously, they may not know.