Gross Net Internal Floor Area

It is very important when describing the area of a building to be clear about which measure is being used for example in planning applications building regulation applications property sales lease negotiations rating valuations and so on.

Gross net internal floor area.

Gross external area and gross internal area areas with a headroom of less than 1 5m are excluded rather than included. The footprint of the building excluding the width of the outside walls. 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. Areas are the foundation of a development appraisal and using the wrong area can cause significant changes in the profitability of a scheme.

It includes areas occupied by internal walls and partitions. The efficiency saleable floor area is usually 75 85 of gross floor area higher value for the blocks with bigger apartments and for low rise blocks since the common area of a blocks with a given. The floor area within the inside perimeter of the exterior walls of the building under consideration exclusive of vent shafts. Housing authority shows internal floor area in case of prh estates while for tps hos and psps estates it shows saleable and gross floor area.

Gross internal floor area gifa or gross internal area gia created. Net internal area is used for the measurement of industrial and warehouse buildings in some parts of the country. Gross internal area broadly speaking the whole enclosed area of a building within the external walls taking each floor into account and excluding the thickness of the external walls. Commercial office floor area calculation methods.

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. Gross internal area gia or gross internal floor area. 22nd mar 2018 reference. Gross internal area gia the floor area contained within the building measured to the internal face of the external walls.

Gross internal area gia gia is the total area of buildings owned occupied or maintained by the hep measured to the internal face of the perimeter walls at each floor level i e. Net internal area covers all of those areas that can be used for a particular purpose. The agency hopes to be able to complete the substantial work.