cjra wrote:

I have described the house set up repeatedly, perhaps you missed it.
There are not very many rooms in the house. Every other area is OPEN.
It's a smallish house. There's not some side area to put her, so yeah,
wherever she'd be outside the bedroom would be in a common living
space.

Yes I answered before I read the post where you described it again,
and I was not paying attention in the beginning as I did not co-sleep
and did not have much trouble with night waking after about 6 months.

I do live in a pre Civil War house (in the US), but it is two stories.
And very well insulated for noise. Dd#2 was determined that she was
going to be in the band playing with her sister, but we had just moved
and the school system we moved to started instrumental music in 3rd
grade, and she was in 5th grade so way behind. She wanted to get up
and practice before school, but dh said absolutely not, that he wasn't
going to be wakened up at O dark 30 with the screeching of a clarinet.
So DD#2 went downstairs into the 'new' wing (c 1930) and shut herself
in the half bath off the kitchen and she could practice there without
waking her dad. And my son's rock band used to practice in the
living room which is right under our bedroom - made the house vibrate
a bit.

It sounds like you are a whole family of problem sleepers.g. And
that's the problem more than the house.