Ok so the topic is hardly exciting, but I've just been told by a builder who's building a house on the neighboring property that he's going to block a drainpipe which is discharging water onto their property, which could cause my house to flood...

Who do I need to speak to to find the plans which show were the waste water and storm water goes as it's not displayed in my LIM report , and the same report clearly says my house has waste water, , storm water, sewerage etc etc present. It's not obviously to see physically as my driveway etc is all paved.

Is there someone I can call to come out and investigate?

Thanks