Moving soil pipe

[Rhica]

Has anyone successfully moved a soil pipe? We are planning a single storey extension and our builder has said we can't really move the soil pipe and so it would be in the middle of the room. He said we could move it sideways a small distance but not lengthways outside the house. Any ideas why this might be? Not really found anything on Google. Thanks

Yes, a few times ( in different houses obviously). I moved the bathroom in one house to a position where it was totally landlocked. It went down in the corner of the living room, through the living room floor and then through the kitchen floor to meet the sewer outside. The floors had to be dug up anyway but you can just dig a trench.
I think you have to notify building control, the water board if you’re linking into a public sewer ( this would probably only be the case if you’re in a Terrace or semi). You can just ring building control and ask them. You can also move man holes and the sewers in your garden, to link up with the soil pipes new location. If it’s a public sewer you have to ask.

Great. At least I know it should be possible. Will query it with the builder. He said we also need a support pillar so think the was thinking of boxing they in together but the position of it would really ruin the design. O think the manhole is in the garden .thanks for your help

If you are putting a support steel in when you knock through you shouldn’t need a pillar in the middle. Might be worth getting in touch with a structural engineer the company I used also did design work. I’d youre knocking a wall down to create a big room you’ll need building control. It’s about £600 where I live for the visits and the completion certificate which you need when you sell your house.
A steel beam usually costs about £1000 and the beam calculation ( which the building inspector will want to see) costs about £300
I’m in the north

Builders can often want to take the easy option rather than the best option

Thanks for your advice.I have an architect and structural engineer coming round this week and he did say to ask them to be fair.

He was the only builder that I felt was honest about things. He was fairly upfront about things that could and couldn't be done and which things would be difficult so he recommended not doing etc. It's why we liked him. But the soil pipe he just flat out said no and didn't really explain

The pillar is because we are removing the corner of the house but he did say to discuss this with the engineer. It's all so much more complicated than I thought it was going to be

That's what worries me about this whole process. I am at the mercy of all the parties involved as have no clue about these things

Removing a corner will probably need a pillar but it might be a case of designing the use of space so the structural stuff fits with the end use and doesn’t stand out. Hopefully the architect should give you a lot more info. Ask lots of questions.