Adding toilet/utility on other side of house, what's involved?

[Kai1981]

Currently the bathroom is on the first floor of the building along the middle of the house on the left walls. We want to add an upstairs cloakroom and possibly space for a washer dryer on the second floor (existing loft conversion). But this would be on the middle of the house on right hand wall of the house. Can this be done by extending the soil pipe etc?

It's a Victorian terrace but the second floor (e.g. the loft extension roof) is separate and not joint to the roofs either side as with some terraces.

I think a floor plan would be helpful. Are you able to provide one?

When we had it done we had to have a macerating toilet as it was going to be major work and hugely expensive to extend / move the soil pipe. Everyone knew if you'd been for a number two as the bloody thing would be 'chewing' for ages after flushing. I hated it!

I put a toilet in the front of my house (there was a bathroom but no toilet there). I ran the waste pipe under the floorboards of neighbouring bedroom and out the side and it joined an extension to the existing soil pipe. There has to be a drop so the waste flows down, and there was enough even though it was about a 15+ft length.
So you need to check if there's enough of a drop from one side if the house to the other (i guess this means how much space is there between floor and ceiling below) taking account that you can't just hack your way through joists.
If that isn't possible, I had a saniflo toilet for the opposite reason - there were no drains on the lower ground floor so waste had to be pumped up a floor level. It was fine, noisier than a regular toilet but not excessive.

Too little info to answer.

Need to get a plumber in, ask what the options are - potential to run the soil pipe outside, inside, saniflo etc.

Thank you. Sorry, here's the floor plans. imgur.com/gallery/eSHUEhd

I absolutely don't want a macerator etc, I've been scarred for life after previous experiences. So basically it's a proper toilet or nothing!

Floor plans don't help.

Need to know which way the rafters run, and if they run the right way (50/50) and whether or not there's a header across the stairwell which would throw a spanner in the works.

Thanks, just trying to get an understanding of what's involved, questions I'll need to ask before getting experts in.

Might be worth asking on screwfix forums - a lot of plumbers on there - post external photos as well as the floor plans and lift a carpet to identify which way the floorboards run.

But tbh I'd just call up some local plumbers, get them round and tell them what you want, ask how they'd do the work.