ᐅ Children’s room wall, 3.50 meters (approximately 11.5 feet) high

The attached image shows the floor plan of our upper floor (south is at the bottom).

If the ceilings are not lowered, the room height at the north wall would be about 3.50 meters (11.5 feet).
Would you lower the ceilings or leave them open? And why?

Leave it open! The room width allows for it

... and definitely keep the living room open

Unfortunately, I can’t do it in the living room because only the area outlined in red would remain open, and I don’t think that would look good.

Are there any ideas on how to make practical use of these ceiling heights in the children’s rooms as well?

Depending on the age of the children, the bed could be placed on a raised platform with a ladder for access (loft bed), creating a living and play area underneath.

You get more shelf space or simply a nice picture placed higher up. Besides the option to add a raised bed, a cozy nook, or even a second level, not everything has to be purely practical. If you can’t get enough of the spaciousness and especially the openness of the rooms, then that alone gives it its value. Style and uniqueness also help increase the resale value.

The corner will look stylish in the living area as well! These are the opportunities and advantages of a roof with a low pitch: you can create something special above, rather than just a plain ceiling, which everyone is used to and tends to overlook.