Moving a manhole for an extension add on

[OldieNewbie]

If building an extension and a man hole is in the middle of the proposed new floor or new wall being built, how does it get moved? 
 

Would there be any other waste services buried underground that may not be visible? 
 

Is it a big job? Would a specialist need to do it? Or could a competent builder manage it? 

[ProDave]

A manhole does not exist without pipes connecting to it. So there will be some kind of drain, and these days it is normal to divert the drain rather than build over it.  So first work out where the drain runs, and who owns it.  Come back with photographs and sketches of your findings.

[saveasteading]

1 hour ago, OldieNewbie said:

competent builder manage it? 

Yes. If they are, and many arent.

It doesn't always work if the levels are tight, as a diversion is usually further.

[DevilDamo]

A lot would depend upon the manhole being private or public. 

[glenboy]

Hi, I just saw your post. This may help.