The Seecel building is located in New Zagreb along the main city avenue. The morphology of the modern city, scattered cubes with green strokes defines the scale and speed. The given program structure defined a very dynamic business complex. By intertwining three main functional assemblies – the office part, the educational centre and the hotel content – a lively structure is obtained that covers a wide zone of daily activities. The new dynamic structure responds to the found measure. There is no clear boundary regarding the movement- inside and out. Density builds spatial experience and all units are contented with a unique rule. The newly established order transforms the diversity of functions into a common assembly. The spatial structure consists of a dynamic, progressive sequence, and volumes of growing dimensions. With a regular structure of growth of closed volumes, a relationship of access and zoning of different contents is established diagonally in space. The floor plan opens with a void in the entrance zone and becomes denser in the zone of internal organization. A dynamic structure is organized to define assemblies by the relationship full – empty, open – closed. Dynamic sequence, a series of closed volumes, spatially intertwine, forming their horizon.