Thus for example if the stairs descend from the first floor via a hole measuring 50 square feet but they cover 80 square feet on the ground floor the stair area that counts towards the first floor is.
Gross floor area stairs.
Gross floor area gfa in real estate is the total floor area inside the building envelope including the external walls and excluding the roof.
Total floor area of all floors of a building calculated with the external dimensions of the building including structures partitions corridors stairs.
Floor area ratio means the figure obtained when the gross floor area of all building on a lot less the exclusions permitted in accordance with section 6 20 is.
Adding to this confusion is the practice among some developers to use gross leasable area gla and gfa interchangeably or to use.
The floor area ratio of a 1 000 square foot building with one story situated on a 4 000 square foot lot would be 0 25x.
Floor area gross means the total area of all the floors measured to the extreme outer limits of the building in accordance with the regulations set out in section 6 20.
3 2 1 gross area gross square feet gsf see figure 3 2 below definition.
Sum of all areas between the vertical building components walls partitions i e.
The gross floor area is defined by the 2018 international building code as.
The sum of all areas on all floors of a building included within the outside faces of its exterior walls including all vertical penetration areas for circulation and shaft areas that connect one floor to another.
Definitions of gfa including which areas are to be counted towards it and which areas aren t vary around the world.
The floor area within the inside perimeter of the exterior walls of the building under consideration exclusive of vent shafts and courts without deduction for corridors.
If the stair area is measured as part of the floor area from which they descend the total area cannot exceed that of the gap in the floor.