Speaker placement & party wall

[O'Borg]

I'm about to move house shortly and I have the luxury of a relatively blank canvas to work with, and I'm working on an AV layout already
The house is a semi detached with a (narrowish) through lounge. I dont want to place speakers and TV against the window, so I'm looking at TV / Speakers one side and seating on the other. My kit is Marantz AV amp, Rotel Hi-Fi amp, Castle Trent bookshelf main speakers (switched between amps), an Eltax 12" active subwoofer, Eltax wedge shaped bipolar rear speakers, a Mission 905c front centre and Eltax cheap rear centre (yes, I shopped at Richer Sounds )

In order to least annoy the neighbours, do I :
Place the TV & speakers with their backs to the party wall, facing back towards my side?
Or place the TV & Speakers with the backs to the hallway wall, facing towards the party wall? Plus if I have the speakers facing the party wall, I can mount them on wall backets (Castle Trent bookshelf speakers BTW) and gain some floor space.

Will having ten feet of clear air and a couple of sofa's between the speakers and the party will reduce bass transmission to the neighbours, or will the fact the speakers are pointing that way cancel it out?

i wouldnt put speakers on the party wall the sound will travel too much mine are about 11 foot away from the party wall but the sound will still travel abit because of the ceiling which is the biggest part the room