by arbco »
Mon Mar 03, 2008 8:41 pm
Your nieghbour has no legal duty under the b regs to soundproof the wall unless the en suite was entended into a previously non habitable area such as the roof void. Your only choice would be to sound proof from your side which would involve a new independant plasterboard skin or wall. There are many proprietry systems if you look on the net. Sorry it's down to you unless your nieghbour is very reasonable!