Kneewall/drempel in a city villa?

Is something like that worth it, normally with us the knee wall starts at the floor, you could have it raised now 4000 euros per 50 cm. Are 50 cm or 1 m enough. The developer said with 50 cm they would tilt the roof to 30 degrees. House type townhouse/city villa 9.5m*9m. Do you have experience with that, could also invest the money in other things

Why have a knee wall? That's just for the attic in a townhouse.

Yes, the question was whether you wouldn't want to expand it at some point and put a staircase up there right away during construction. But the question of whether it makes sense remains. That's why [eure Erfahrungen da sind], does it make sense or is it not necessary?

Are you even allowed to build that tall? That would need to be clarified first...Eaves height.

Alright, that needs to be clarified. I will inquire about it from the developer tomorrow. Thanks!

If you want to convert the attic, a gable roof makes more sense than the typical hipped roof (tent roof) on city villas. Then you can also put real windows in the gable sides. A knee wall on a tent roof? What does that even look like? I don't think I would like that.