F1: Gross floor area (total above ground)

The purpose of this beat is to help you to consider the impact of the size of the core and its relationship to the rest of the building. Shafts / cores are included. They are a vital part of the design and need to be designed efficiently, therefore they are part of the GFA. The reception area, hallways, auditorium, Skybar and study area etc. are also part of the GFA. Only the basement is not included.