This building is located in Sisli, one of the oldest districts in Istanbul. I-tower covers the expectations and necessities of individuals and institutions in professional life. Rather than designing a single building containing different floors and layout, this project is a system design which has floors working in an integrated way with different functions. On the facade, horizontal components provide effective daylight usage and sunshade. By incorporating self-directed office based HVAC Systems, administrative and financial problems are minimized. These elements contribute in creating spatial and comfortable office spaces. Each floor has a different layout, forming sliding edges on the corners. This dynamic design leads to a unique perspective of the exterior from every point of view making for a striking and unusual look.