An fsi of two indicates that the total floor area of a building remains two times the gross area of the plot on which it is built.
Construction floor area and gross floor area.
The floor area of a building or portion thereof not provided with surrounding exterior walls shall be the usable area under the horizontal projection of the roof or floor above.
Gross internal area gia the floor area contained within the building measured to the internal face of the external walls.
The net floor area nfa of the private units in a residential condo building is typically 60 of the gross floor area gfa.
Secondary structures balconies loggias terraces and building structures are not taken into account.
Generally there are 3 major differences in measuring floor area.
These include construction.
A building s construction floor area is important for not only controlling costs but also for designing standard fixtures and other physical properties found in most residential and commercial structures.
Gross floor area gfa the total floor area contained within the building measured to the external face of the external walls.
What is the differenc between construction floor area and gross floor area.
The floor area ratio is the relationship between the total amount of usable floor area that a building has or has been permitted to have and the total area of the lot.
The usable floor area of a building for the function intended which is based on the gross floor area gfa of the building minus one or more of the sub areas of the building.
Pnap 13 calculation of gross floor area and non accountable gross floor area building planning regulation 23 3 a and b pnap 68 projections in relation to site coverage and plot ratio building planning regulations 20 and 21.
The net floor area nfa includes the area of usable areas of all floor plan levels located between rising components of the building.
The gross floor.
4 the gross floor area is divided into the net floor area and the construction floor area.