It is always thought that an ideal architectural project is a house that has straight lines with the same surrounding walls, which have the same height. But I believe this is a mental stereotype to experience repetitive spaces. Beautiful architecture takes place when we have a new experience of new spaces. Ilaria apartment with the challenge of different height of the ceiling on different levels is an exciting spatial experience for those who want to have a special style in sync with nature. In this design, I tried to evoke the feeling of a rustic style and a forest villa with vertical and horizontal oblique lines and wood material and light walls. My main idea was a tree house. This house consists of three bedrooms, with a sleeping space on the mezzanine and a living room in the center of the house, as well as a kitchen and a fireplace space.