The house is always in change. The family grows or change their habits, needs, so the space has to adjust. In this case, the kids of the family need more space, private space (invidivual rooms) and study space. So the solution was to build new master bedroom with it´s own bathroom and walking closet. Unfortunately the street was too small, so the houses were so close that we could not open the space to tra front (not much). The best thing was to separate the new construction from de old one. This creates an empty space for sunlight. Plus, the size and position of the new windows (near the ceiling and short) iluminate the space, but the space remain private.