There are several different standards that define how area should be measured and calculated in commercial office buildings. The dominant standard in North America is the BOMA 96 standard, but in certain cities such as Washington and New York other local standards dominate. I will attach links to a description of how the BOMA 96 standard works as well as a link to a list of other standards.
floor is different...
What is the difference in gross square meters and square meters
I have to find the Gross leasable area for an office tenant who shares common elements with an ajacent office Tenant. What is the calculation.
there is covered area can it be calculated in usable area
This is calculated by measuring from the internal wall surfaces and includes all stairwells etc. The treated floor area would be this area minus any unheated areas. Residential property covers everything from a 1 bed flat to a 5 bed detached house so there is no typical.
floor is different...
How to calculate the net floor area when you know the gross floor area
Gross floor area is the total floor area contained within the building measured to the external face of the external walls. Construction floor area is the total space in a building, including things like exterior walls, permanent partitions, fire walls, and areas in attics and basements. Essentially, gross floor area is the usable space, while construction floor area is the total space.
total floor area exclude basement (for parking) and roof top area.
You use the net floor area which is the area minus the space required for circulation and services
it means conditioned floor area!
What is the difference in gross square meters and square meters
I have to find the Gross leasable area for an office tenant who shares common elements with an ajacent office Tenant. What is the calculation.
Net Area, is soley the working office space, gross area includes all (or a proportion of if a shared office) the 'circulatory' spaces including stairwells, lifts, toilets and entrance lobbys etc. Hope this answers your question.
there is covered area can it be calculated in usable area
Gross floor area or Gross external floor area includes perimeter wall thicknesses and external projections, it excludes open balconies but includes open sided covered areas. Gross internal floor area includes the whole area enclosed within the external walls and includes open sided covered areas (should be shown separately), it also excludes any area with a ceiling height of less than 1.5m except under stairways.
Ground coverage of the bldg is equal to total gross ground floor building area divide by total plot area.