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M <br />Orange County Space Study Work Group Progress Update <br />Builder's First Source property at 401 Valley Forge Rd in 1997 (105,000 gross square feet) and <br />the Eno River Parking Deck in 2012 (147,122 gross square feet). <br />1,200,000 <br />1,000,000 <br />800,000 <br />600,000 <br />400,000 <br />200,000 <br />0 <br />FIGURE 2 <br />Gross Square Feet - 1980 - 2014 <br />O N �* l0 W O N �* l0 W O N �* l0 W O N �* <br />W W W W W M M M M M O O O O O r-1 r-1 r-1 <br />r\-1 r\-1 r\-1 r\-1 r\-I <br />r\-1 r\-1 r\-1 r\-1 r\-I <br />SPACE MEASUREMENT DEFINITIONS <br />■ GSF <br />All commercial and institutional buildings include a number of different space types. Two <br />industry associations for facility management — the Building Owners and Managers Association <br />(BOMA) and the International Facility Management Association (IFMA) — provide industry <br />standard techniques and definitions for the measurement and evaluation of space within <br />buildings. The figures that follow, using the ground floor of the Link Government Services <br />Center as an example, present an overview of some of the key space types and measurements <br />used when comparing and evaluating space within buildings. These include: <br />• Gross area: measured from the outside face of exterior walls, this represents the <br />building "footprint" times the number of floors, excluding an voids, such as two story <br />atriums (Figure 3); <br />• Assignable area: includes all office space, storage space, meeting space, and circulation <br />space that is directly assigned to, and exclusively available to, an individual department, <br />measured inner wall surface to inner wall surface (Figure 4); <br />• Service areas: includes restrooms and custodial storage spaces (Figure 5); <br />• Circulation areas: includes entry vestibules, lobbies, corridors, stairwells and other <br />means of travel within a building, both those areas assigned to departments and those <br />9 <br />