Net Internal Floor Area Definition

The whole floor net lettable area is calculated by.

Net internal floor area definition. The area of building measured externally at each floor level. The net floor area nfa of the private units in a residential condo building is typically 60 of the gross floor area gfa. The net internal area nia of a building is the usable area measured to the internal finish of the perimeter or party walls ignoring skirting boards at each floor level. 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 stairways closets the.

Net internal area nia. Definitions the net lettable area of a building is the sum of its whole floor lettable areas. Net internal area is used for the measurement of industrial and warehouse buildings in some parts of the country. Net floor area shall be the sum of total leaseable area for nonresidential uses.

Net floor area is the sum of the horizontal areas of the several rooms measured from the interior faces of the walls of each room. Net internal area covers all of those areas that can be used for a particular purpose. For accurate benchmarking purposes nfa must be calculated using a consistent methodology. The main definitions used within the code are.

Net internal area nia broadly speaking the usable area within a building measured to the face of the internal finish of perimeter or party walls ignoring skirting boards and taking each floor. Gross internal area gia. The nfa of common property in our building is 40 of the gfa. Net floor area does not include parking garages basements for storage or utilities common elements and common hallways.

Net internal area nia or usable floor area ufa the nia is the gia less the floor areas taken up by lobbies enclosed machinery rooms on the roof stairs and escalators mechanical and electrical services lifts. Areas are the foundation of a development appraisal and using the wrong area can cause significant changes in the profitability of a scheme. The area of a building measured to the internal face of the perimeter walls at each floor level. Floor areas in property development can often cause a fair bit of confusion when do you use gross internal area when does the net apply and what about gross external area.

Taking measurements from the internal finished surfaces of permanent internal walls and the internal finished surfaces of dominant portions of the permanent outer building walls. Gross internal area gia the floor area contained within the building measured to the internal face of the external walls.