Exit the living area to your right and go right and up the stairs. At the top of the stairs go right and then turn right again and wait at the big window.
Turn around and ascend the staircase. At the top of the stairs continue straight and turn right. Stop in the doorway.
Walk towards the spiral staircase. Go up the staircase. Go right once you're up the stairs. Then turn right and go just outside the door, exiting the building.