Glossary Term Defined

Also know as a conversion factor that, when multiplied to USABLE area, generates the Rentable area of a space.

Also known as “FACTOR” or “ADD-ON” Factor (see Factor and Add On Factor)

Also known as “FACTOR” or “ADD-ON” Factor (see Factor and Add On Factor) Allocates Common Areas to Usable Areas and Basic Rentable Areas. A figure greater than one, the numerator of which is Rentable Area and the denominator of which is Usable Area. There are Floor R/U Ratios, Building R/U Ratios and occasionally Multi Floor and Campus R/U Ratios. This is often incorrectly called an R/U Factor, and is sometimes referred to as an Add-on Factor, Common Area Factor, Loss Factor, Load Factor, Gross-up Factor or Partial Floor Factor.

(BOMA 2010, Method A) A ratio, the numerator of which is the preliminary floor area of a floor, and the denominator of which is the usable area of that floor, that distributes floor service areas to the occupants on a floor on a proportional basis.