Usable Floor Area Definition Australia

Net floor area is the internal room space between face of walls.

Usable floor area definition australia. The fully enclosed covered area feca is the sum of all areas at all building floor levels including basements except unexcavated portions floored roof spaces and attics garages penthouses enclosed porches and attached enclosed covered ways alongside buildings equipment rooms lift shafts vertical ducts staircases and any other fully enclosed spaces and usable areas of the building. Revised gross floor area gfa definition. In other countries gross floor area meaning is like hong kong s saleable area. Usable floor area means a total area of all floors of a building or dwelling unit excluding a garage and other parking area a lobby or hall used for common or public access any area or shaft pertaining to the maintenance or servicing of a building but including internal walls in the case of residential uses the usable floor area does not include a cellar or recreation room.

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. Please refer to related circulars ura pb 93 23 dcd dated 24 aug 1993 and ura pb 94 07 dcd dated 25 apr 1994 for further clarifications. Usable floor area ufa the sum of the floor areas measured at floor level from the general inside face of walls of all spaces related to the primary function of the building. The whole floor net lettable area is calculated by.

The net lettable area of a building is the sum of its whole floor lettable areas. Definitions of gfa including which areas are to be counted towards it and which areas aren t vary around the world. In 1989 following the introduction of the new development charge system a simplified approach was adopted to determine the gross floor area gfa of a building. 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.

Usable floor area ufa source net lettable area nla total floor space measuring from the internal finished surfaces of permanent internal walls and permanent outer building walls the centre line of inter tenancy walls and partitions or the public area wall faces where walls and partitions adjoin public areas whichever is deemed appropriate. 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. Adding to this confusion is the practice among some developers to use gross leasable area gla and gfa interchangeably or to use. Gross floor area gfa in real estate is the total floor area inside the building envelope including the external walls and excluding the roof.