In the masterplan of the area commissioned by the city of Ljubljana in 1994, this derelict industrial site bordering on the high quality green area next to the Sava river, was transformed into a mixed environment friendly area. Urbana building, the essential element of the overall scheme, was built first to function as the spine of the future composition. The large volume of the building is structured on several levels: from volumes of separate housing units to volumes of separate apartments, to elevations layered with varying panels and lines. The resulting structure is transformed from a view-blocking uniform bulk into a dynamic generator of motion.

The structure of the building that houses 145 apartments allows a highly individual development of single apartment plan forms. The 16 metres deep plan ensued from a combination of multi-layered housing depth and the use of over-sized window surfaces.