Location of fronts and neighbours

So a lot of good suggestions here.  We will be moving into these premises as it is really nice in a lovely area.  To our luck the next door neighbour is an old work colleuge which went on maternity leave a while ago so we are already on good terms with them which will make it easier.

I still like the idea of sound proofing as much as I can, however, its rented and I cant cause damage as I dont think the landlord would be too pleased.  My thoughts are some kind of free standing wall covering the entire party wall. With an air space between these two walls.  Then using rockwool in between a wooden frame covered with plasterboard, painted to match the room.

Main problem with this would be designing it so that it doesnt fall back into the room squishing me.  Bare in mind that I would like to put my GXFX rears on this backwall which would tip the centre of balance.

Any ideas of how I could design this to stop it falling? I was thinking of some 'feet' sticking out half a foot from it into the room. 

The sound proofing of this wall would obviously be effective to a certain degree but would it be worth it if its the only wall treated?  Do you think the sound will still travel into thier premises if the ceiling and floor are not?

EDIT:  Just reread your post Graham, which answers my above question:

Graham Slee wrote: Any wall at right angles to the above will cause fringing so that's best covered with the basic depth of insulation too. Don't forget to lift the upstairs floorboards and pack the cavity adjecent the wall with rockwool too or the noise will travel to the upstairs wall and vibrate its way through that way. Same goes for wooden sub-floors. Also fill joist holes with fire-stop acrylic sealant.

Possibly a difficult question to answer but how much of a problem do you think it would cause if I didnt sound proof the top floor? Would it still be worth it to make this free standing wall?


Edited by UKMach - 05 Oct 2014 at 4:05pm

@UKMach. We soundproofed the party wall of a rental property without doing any of the other recommended bits because it wasn't practical for many reasons (although the sub floor joist end holes were filled). It was OK for decent TV volume and loud speech, but when the tenant played a movie using his bass sub....

I'll let you fill in the blanks.

Haha, there are so many ways one could interpret that comment.

Keep it clean, keep it clean.