Net Usable Floor Area

Usable floor area means the net floor area of a building where persons may move about and carry on the usual tasks for working and living but does not include.

Net usable floor area. The usable area of a floor is equal to the sum of all usable areas on that floor. Restrooms and lounges stairwells elevators and escalator shafts building equipment and service areas entrance and elevator lobbies stacks and shafts freezer and coolers areas storage and stock rooms and other building elements. It is determined as follows. Nsf is essentially gsf minus unusable space.

The floor rentable area is the tenant s pro rata portion of the entire office floor excluding elements of the building that penetrate through the floor to areas below. 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. Net square feet is the area of usable space that s available for furnishings equipment and personnel. The total usable floor area in a building measured to the inside of the enclosing walls.

If the space is on a single tenancy floor compute the inside gross area by measuring between the inside finish of permanent exterior building walls or from the face of convectors pipes and other wall hung. 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. 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. Net usable space is the method of measurement for the area which the company will pay a square foot rate.

Scope nfa is any sub areas of the building that is derived from an extraction of one or more of the following areas form the gross floor area. 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 columns toilet areas other than in domestic property ducts and risers. The gross floor area shall not include shafts with no openings or interior courts.