Sound proofing when laying tiles on concrete new build

It may be necessary to check with the freeholder/management company as to whether they will allow you to have tiles in an upstair's apartment. Some leases have a clause in them to avoid the problem. The main problem with adding any form of boarding on the current floor to increase sound insulation is that the floor level will be raised significantly, so then there will be a need to cut down interior doors and possible resiting of skirting boards etc. It could get expensive and time consuming.

If you proceed with the tiles consider using No More Ply or similar tile backing board, can be brought in sheets 6mm thick and do have sound proof qualities but you may want to check that it is enough for what you are trying to achieve. The thicker you buy offers more protection but obviously presents the issues raised above. As quite rightly mentioned above though they aren't cheap, boards are 1.2 x .6 metres and are anything from £6.50 - £9.00 each depending on where and how many you buy. Good Luck