As you may expect, I'm not able to say anything about culture and reasonable expectations in the UK.
But IME, in order to limit the amount of noise experienced on the other side of walls and floors, in addition to reducing the bass frequencies, the best thing is to augment your cone area, IOW to buy an extra Compact. Though it may well be that my experience is too limited, and this idea defies physics.
Me, I always use two cabs, one placed in ear height when I stand, and one in ear height when I sit (leaving just enough space between them for the amp to sit). I then play sitting/standing within one yard from them, them pointing directly at me.
When I check with the neighbours (my ex and my daughter), they'll always tell that they hardly heard me, and it wasn't annoying at all. Of course my ex isn't a grumpy stranger, and also she herself is guilty of playing a classical guitar every now and then (which I wisely do not criticise ).