The 1780 square meter office occupies the entire floor 15^th of an old Tower in the heart of Tehran, Vanak square. Karand group was commissioned to design interior of the main office for the Daneshmand company which supports Knowledge enterprises. In order to meet the client requirements, the working spaces, for about 120 people, configured in an open space layout to promote a sense of community and encourage collaboration. Meanwhile, the service areas designed in building core center.