Hi
How much work is it to add a small downstairs toilet (sink and toilet only) to a hallway? I assume plumbing / soil pipes are the biggest issue - would this involve digging up floorboards in other rooms?
For context, hallway is in a semi- detached house and adjacent to next door, so presumably soil pipes would need to be laid across other rooms? It would be immediately below a bathroom if that makes any difference for pipes etc?
Any approximate costs?
Thanks x