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A Look at Office Buildings

How large are they?

How many employees are there?

Where are they located?

How old are they?

Who owns and occupies them?

Are they on multibuilding complexes?

How do they use energy and how much does it cost?

How do they use electricity?

How do they use natural gas?

What types of equipment do they use?

How do they measure up on conservation efforts?
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

  OFFICE BUILDINGS
How large are they?

Square Feet per Building

The average office building is 14,900 square feet.  There is 10.5 billion square feet of office space, which is 18 percent of all commercial floorspace in the U.S.

Total Floorspace

Over half of all office buildings are less than 5,000 square feet; almost 95 percent are less than 25,000 square feet.

Most office buildings are not towering skyscrapers like you see when you look at the skyline of a big city—a little more than half of all office buildings had only one floor and only one percent of office buildings had more than ten floors.

Number of Establishments

The CBECS is based on the whole building, which can house more than one establishment.  For example, an "office condo," considered one building in the CBECS, might contain a doctor, a lawyer, and an architect—three establishments

The 705,000 office buildings in the U.S. contain a total of 1,600,000 establishments, an average of 2.3 per building.  This is slightly more than the average number of establishments in other types of commercial buildings (1.7 per building).  Nevertheless, a large majority (70 percent) of office buildings have only one establishment.

Table 1:  Number and percent of office buildings and establishments per office building by size category and number of floors

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Specific questions may be directed to:

Joelle Davis Michaels
joelle.michaels@eia.doe.gov
CBECS Manager
Phone:  (202) 586-8952
FAX:  (202) 586-0018

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URL: http://www.eia.doe.gov/emeu/consumptionbriefs/cbecs/pbawebsite/office/office_howlarge.htm

Release date:  September 11, 2000 
File last modified:  January 3, 2001