Right now you are facing towards the glass door and move forward until you reach the white wall and turn left. And move forward towards the wall and turn right. Walk straight through the hallway, you will find a narrow passage in front of you, move forward through the passage until you find an open door on your right. Enter into that door and you will find a potted plant beside the sofa, move forward towards it and turn around. You will find a glass door of the washroom. Move forward towards the glass door and this is your final point where you have wash basin on your right.