In this case , this young girl didn't really want to make some change in her bedroom.

She liked it the way it was. But it was quite messy and crowdy.

So I accept to do the minimum : no new paint on the wall, no new floor, no new bed .

Just a solution which will give her the storage she needed for her clothes, lot of books

and a desk to study.

So we agreed on  a  very simple and smart carpentry work that satisfy her wish list and still keep the room spacious enough even to receive a friend to sleep over.

She accepted very well the change and is enjoying her room.