Planning of one-room apartment

Replacement of one-room apartment.
The main requirement is to build a room for the son of the teenager. The parent's room should perform the functions of the living room, the office (working places provided for both spouses), and the bedroom.

The place for the boy's sleep leaves one structure with a ceiling between the room and the kitchen. The bed was located at a height of about 1.2m. Under the bed on the side of the room - built-in closets for clothes and not only, on the side of the kitchen - place of storage of the kitchen clothes and so on. Written table next to the window, partially driven into the stallage, if necessary