The Rosum Office Building in Bratislava, Ružinov district is one of the most modern office buildings in Slovakia. The leasable area of 22,000 m2 of office and retail space is built to the highest possible standard. The building consists of two towers connected by a common reception. Both towers also share a common car park, which is located on 2 underground and 3 above-ground floors. In addition to the office space, Rosum also has a retail area for shops and services. AB Rosum is located at the intersection of Bratislava's Ružinovská and Bajkalská streets, which gives it excellent traffic connections. The adjacent city parks and water areas are also an undeniable advantage, adding natural elements to the location. In terms of sustainability, the building is certified according to the internationally recognized LEED system at the GOLD Level. The contract was managed by K4 a.s. managers using the Construction management system. Other services provided by K4 a.s. to the client were Investor Technical Supervision, HSE Coordination, Document control, and Cost control.