BCM - thanks, that's quite reassuring. We're not super-neurotic about noise. But the idea of spending several months with a newborn baby (not) sleeping in a cot in the bedroom next to ours is a bit daunting because the dividing wall on that side is only a single brick's width. (That still might not be enough reason, on its own, to warrant a move. But it could be the tipping point in combination with other factors.)

Southlonder - Wow. That's a scary saga by contrast. But some very useful and detailed info to keep on file for future reference. So thatnks for that as well.