Floor plan for a single-family house with 4-5 children's rooms

@hampshire has an extra children’s house for 2 kids, mini apartments with kitchenette and bathroom, that would certainly be cheaper as an extension or separate building than a new build and your house could continue to be used that way

But I think the "kids" were already seventeen.

clarify in parallel how high your attic will be. Not that it’s just a storage room without standing height. For the new building If necessary, post the development plan here. There are some who can work something out of it.

Since this is partly about the attic, I would like to briefly join in here. We are currently also dealing with the question of whether converting the cold roof / attic makes sense or whether this room could be used as an office. Attached is a section of the attic, with a request for assessment. We are building a classic single-family house 10.6x9.2m, and in the middle of the attic, there would be a standing height of approx. 2.1-2.2m. What do you think?

2m is not that much and the roof is coming quite soon. In addition, the question is how to even get into the attic. If it is to be used regularly, it needs an appropriate staircase that has to be accommodated somewhere in the floor below. Without knowing the rest of the floor plan... tendentially rather no.

The middle of the attic would have a standing height of about 2.1-2.2m. What do you think

Doesn't make sense! At most as storage space.

Since this is partly about the attic, I would like to briefly join in here. At the moment, we are also dealing with the question of whether converting the cold roof/attic makes sense or whether this space could be used as an office. Attached is a section of the attic, with a request for assessment. We are building a classic single-family house 10.6x9.2m, and in the middle of the attic there would be a standing height of about 2.1-2.2m. What do you think?

How wide is the attic at the top? Our house will have similar dimensions and we are insulating the attic because my grandmother had an identical attic (2.1m high, floor area approx. 4.2m wide) and it could be used very well! When my mother was little, two families with 3 children lived in the 150 sqm house, and two of the boys lived in half the attic until they were 15 and 17 years old. Logically, this corresponds to zero current living standards, but it can still be used (office, playroom, guest nook). In our case, the view is also amazing. Of course, a fixed staircase is needed. Somewhere in the forum there is the settlement house that is being renovated, I really like the attic!

Especially in a large family, children can also share rooms - the children are used to sleeping together anyway because of the family beds. With 3 children's rooms, you should be fine. Who shares a room with whom can certainly change over the years.