A bathroom conundrum

[FreezerBird]

We're looking at this house... perfect layout for what we want to do, except the bathroom on the top floor doesn't have a loo.

We're considering opening up the kitchen in both directions (into the breakfast room and utility area) so we'd lose the downstairs loo, leaving us with just the one on the first floor (which is not in the bathroom).

We really want to have a proper bathroom on the top floor so it's a more self-contained space for guests and possible air bnb.

I assume that if it was easy to get the plumbing for a loo into that room, it would have been done when the main bedroom on that floor was split in two and the bathroom created (not that long ago). So I'm guessing it's going to be awkward. But does 'awkward' in this scenario mean 'doable but a bit of a pain' or 'well-nigh impossible and expensive'?

The house is terraced, so the main body (the square part which goes up all three floors) is attached both sides, and the rear extension is attached all the way back on that one side.

The SVP pipe runs up the side of the house roughly in line with the loo on the first floor.

Any thoughts?

It looks like it might be possible to have a bathroom on the top floor in the 'bedroom 4' area. The current bathroom could be extended into bedroom 4 as well to create a bigger room.

Are you sure you want to lose the loo downstairs? I'd be tempted to move it but have something on that floor too.

This doesn't answer your top floor bathroom question but I'd be tempted to keep a toilet on the groundfloor, much easier for guests than going upstairs. Looking at the plans of the ground floor, could you turn either of the cupboard spaces at the start of the breakfast room into a cloakroom, accessed from the hallway by making the breakfast room very slightly smaller?

My guess is that the loo at the back of the ground was originally an outside loo. Don't not have a look downstairs, move it to the back of the dining room under the current bathroom and connect to the soil stack there.

Or even a loo downstairs!

Put the downstairs loo under the stairs.

For the top floor, you could investigate a macerator. I'm not a plumber so have no idea if possible in your case, but a friend used to have one in a place where plumbing was difficult.

It will probably be easier to live the bathroom into bedroom four asthat is above more of less the bathroom in the first floor.

How high are the ceilings on the first floor? If you could manage to lose the height then I don't see why you couldn't run soil pile across and then join to existing.

Thanks all - the question of a downstairs loo isn't decided, it's just that if we do lose it, it makes the question of getting another in upstairs more important!

I think moving back into bed 4 is probably the way to go. Originally bed 5 would have been the width of the house, like bed 1 below.

I have heard of macerators for this sort of situation but people seem to have a lot of problems with them.