I recently completed a project that involved splitting a room for two sisters who both needed a space to claim as their own.
I created a two sided cabinet that divides the room in two halves. The room has two windows, one on each side so both areas have natural light.
The partition is 7 feet high and has drawers on one side and bookshelves on both. Each girl has also her own mirror.
The cabinets are secured to the wall but they are easily removable and the components can be used independently and in a different configuration.