Floor Area Vs Gross Floor Area

Gross floor area gfa designing buildings wiki share your construction industry knowledge.

Floor area vs gross floor area.

To put it simply a floor area is the size of the indoors area inside the building walls and the lot area is the whole size of the lot i e. You can think of the gross area as square footage where it represents the total square footage of the building. Including the yard up to the boundaries of the lot. Gross floor area gfa in real estate is the total floor area inside the building envelope including the external walls and excluding the roof.

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. Adding to this confusion is the practice among some developers to use gross leasable area gla and gfa interchangeably or to use. The gross floor. Hong kong use an unique system where gross floor area include a sharepart of common spaces thus two blocks with identical apartment units but with different number of units per floor had different gross floor area stated for each apartment because in the block with fewer apartments per floor the common areas were divided to fewer apartments.

The nen 2580 is the most accepted framework for this unit in the netherlands. Construction floor area is the total space in a building including. The floor space fs of a building represents the size of the building such as gfa and lfs. Areas are the foundation of a development appraisal and using the wrong area can cause significant changes in the profitability of a scheme.

Note that the floor area also includes garage built. What does gross floor area gfa and lettable floor space lfs mean. Floor area is expressed in square meters m. Definitions of gfa including which areas are to be counted towards it and which areas aren t vary around the world.

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. The area of a building can be measured in a number of different ways and it is very important to be clear about which measure is being used for example in property sales planning applications building regulations applications lease negotiations rating valuations and so on. 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 on which the building stands.