Small tree house as resting area and cottage design

This is a cottage, not as usual cottage but this is tree house. It is just small but interesting, really appropriate and seems comfort for resting area. This small tree house or cottage built in the well maintenance garden in Dusseldorf, and the area is the place for family holidays. This tree house structured is strong steel and made of walnut design completely by glass window. Inside the cottage is just one room as the bedroom or can use as relax room. A lamp used for lighting inside the room, and natural lighting is enter the room through glass window. A balcony also built in front of the door under the canopy. The ceiling is one with the wall make a curved like a cave. Under the tree house design as playground, strong structure of the tree house or cottage makes the ground below safe for playground.