Moving a manhole around 1.5m, building around soil stack- doable?

[Blueskies80]

Hi all

Just this really. We are thinking of a kitchen extension that would push our back kitchen wall back around 1.5m. Only thing is that there is our soil stack comes down the back of the house outside kitchen and goes into a manhole.

Can the manhole be moved a 1.5m approx back and existing manhole closed up? Or do you need to move the drain pipe back too?
We would also be 'building around' the soil stack too if that makes sense. Would envisage it would be boxed in with access. The pipe access points where the other pipes join the soil stack would be accessible still above the extension roof. Again is this doable or a crazy idea?

We definitely don't want to keep existing manhole and have it in the house, it has blocked and flooded before and I really don't want that in my kitchen.. Yuck!

We have had all the drain pipes lined as they were very cracked if that makes any difference. Also all the drains are ours and not shared - as we are detached (and found out to our horror when the cost of fixing them fell on us..)

Any thoughts welcome. Thanks in advance.

Is it a shared drain?

No not a shared drain, we are detached and Thames water have told us it's ours out to the sewer.

That is much easier than having to re site others! You can either move it and get quotes from a surveyor who can do this sort of thing but be aware it is complicated and costly or get a double sealed lid? And build over it but leave an access panel? Or www.dailymail.co.uk/property/article-2124419/HOME-TRUTHS-Is-moving-manhole-money-drain.html this says they have to be compliant if you are wanting to improve your property although I have never known this to happen

Thanks noddy, I really don't want to build over and keep the existing one as I remember too well when the sewage flooded my garden.. Eugh.
Sadly I don't think we can go to Thames water and ask them to move it as it's definitely owned by us.
I will speak to the company that lined the drains for us and see if they can advise.
If anyone has any other tips or has done this would be very grateful to hear any thoughts! X

Interested to know what you decide. We had an architect here yesterday to talk about our plans to extend the kitchen, which throws up the same issues. We'll need to decide whether to move the drains, or go down the internal manholes route.

Hi bramshott
My builder seemed to think that we could just build a new manhole to connect up to existing pipe, and get rid if the existing manhole. If that is correct would be great- don't really fancy rebuilding pipe.
We could change the design of extension and build around the manhole leaving it intact outside but it would take a chunk out of the extension and mean no walking through to dining room.
I'm going to try a specialist and see what they say. Will keep you posted.