Net To Gross Ratio Floor Area

Divide the gross floor area by the buildable land area.

Net to gross ratio floor area. The net floor area nfa of the private units in a residential condo building is typically 60 of the gross floor area gfa. Space efficiency is simply defined as the ratio of nfa to gfa. Gross floor area gfa in real estate is the total floor area inside the building envelope including the external walls and excluding the roof. The floor area ratio far also known as the plot ratio is a measure of the total permitted floor area of a building in relation to the total area of the lot or plot on which the building stands.

Gross floor area of a high rise building. Gross floor area of all floors of the building area of the building lot far a higher ratio indicates a higher density environment. The terms can also refer to limits imposed on such a ratio through zoning. Commercial office floor area calculation methods.

Gross floor area g floor area of 1st story floor area of 2nd story for all floors above the ground step 4. Adding to this confusion is the practice among some developers to use gross leasable area gla and gfa interchangeably or to use. Space efficiency is defined as the ratio of nfa to gfa. Definitions of gfa including which areas are to be counted towards it and which areas aren t vary around the world.

Net square feet nsf is the area of an individual room or the usable floor area that is assigned to a function in an open area. Floor area ratio far is the ratio of a building s total floor area gross floor area to the size of the piece of land upon which it is built. Related articles on designing buildings wiki. The result is the floor area ratio far.

Gross floor area is the sum of the floor area of each story. It is often used as one of the regulations in city planning along with the building to land ratio. Gross floor area is used in benchmarking analysis when making comparisons between buildings. Example of how to use the floor area ratio.

Rics guidance note a guide for property professionals 6th edition code of measuring practice 2007 is in general agreement with the valuation office agency definition of net internal area. Hierarchy of floor areas ranging from gross floor area gfa to various types of net floor area nfa. Net square feet for each room is measured from the inside finished surface of surrounding partitions or enclosing elements and from the outline of the floor area for a space in an open area. Floor area ratio far g b.

Examples listed below are some examples of net floor area to help illustrate the relationship to gross floor area. As a formula far gross floor area area of the plot. Case notes for rating valuation.