Downstairs Toilet

[nic3c]

Does anyone know approximately how much it would cost to put a downstrairs toilet in the hall (including building an internal wall around it)? Thanks.

[buildersmate]

Too difficult to assess to any level of accuracy with this information. The main issues to overcome are dealing with where the sewage goes to and whether you actually have enough room in your house to do this (meeting Building Regulations for access/clearance distances in the hall and in the new room).
Ask a couple of local builders around.