The boundaries, the height lines of the terrain and an underground pipeline, define the geometry of the plan. The building is divided: First one steps into a garden without any green, from here you can enter the indoor space. The garden and the indoor space define together a small world, separated form the surrounding family life. Openings are carefully set to allow for views and light without possibility to look directly in from the outside. A large sun screen gives a necessary shade while working on the computer in the morning hours.