Architectural design of 17 story Premium building Sofia Verticale - multifunctional building with 17 above-ground floors and 4 underground levels. From the 1st to the 9th floor there will be commercial areas and offices, and from the 10th to the 17th floor there will be residential areas - a total of 59 apartments with 1, 2 and 3 bedrooms. The building will be certified for energy efficiency with a Platinum certificate from LEEDS.