Extension

The thing with the converted attic is definitely possible, although it of course won't come for free. However, I would like to point out that a hip roof with a 35-degree pitch looks completely different from one with 25 degrees. To me, the former lacks elegance.

You should be able to fit three children's rooms in 170m².
Nice that you are happy.
Just the thought of starting over with such a huge gap sends chills down my spine.