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Commercial Buildings Energy Consumption Survey (CBECS)

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Table PBA2. Summary table: total and medians of floorspace, number of workers, hours of operation, and age of building by building activity subcategories, 2012

Released: December 2016

  Number of buildings (thousand) Total
floorspace
(million
square feet)
Total
workers
(thousand)
Median
square feet
per building (thousand)
Median square feet per worker1 Median operating hours per week Median age of buildings (years)
All buildings 5,557 87,093 88,182 5.0 1,029 50 32
Principal building activity
(expanded)
             
Education  389 12,239 10,885 10.0 1,033 50 30
College or university  27 1,883 1,502 46.8 1,461 76 37
K-12  232 9,175 8,149 14.4 1,101 45 28
Elementary or middle school  189 6,118 5,286 12.1 1,033 45 27
High school  43 3,056 2,863 24.8 1,446 50 34
Preschool or daycare  68 431 749 4.4 500 58 24
Other classroom education  62 750 485 6.6 1,421 40 38
Food sales  177 1,252 1,172 3.2 1,033 114 30
Convenience store2 131 470 441 3.0 1,000 119 28
Grocery store or food market  45 763 719 7.2 1,250 100 35
Other food sales  Q Q Q Q Q Q Q
Food service  380 1,819 3,431 3.6 567 80 33
Fast food  92 302 793 3.0 401 100 23
Restaurant or cafeteria  179 1,039 1,934 4.5 564 72 33
Bar, pub, or lounge 71 350 455 4.2 1,250 80 62
Other food service  37 128 248 2.6 475 75 37
Health care  157 4,155 7,613 5.0 556 48 31
Inpatient  10 2,374 4,281 101.0 573 168 36
Outpatient  147 1,781 3,333 5.0 556 48 31
Office (diagnostic)  60 510 1,008 4.2 500 40 31
Clinic or other outpatient  87 1,271 2,325 5.6 558 50 31
Lodging  158 5,826 3,066 14.7 2,541 168 37
Hotel  30 2,717 1,103 44.0 4,200 168 20
Motel or inn  61 602 254 6.0 2,333 168 38
Dormitory, fraternity, or sorority  25 805 137 16.0 7,750 168 49
Nursing home or assisted living 30 1,275 1,355 25.3 1,176 168 23
Other lodging  13 426 217 9.3 3,250 168 48
Mercantile  602 11,330 9,117 6.6 1,200 60 33
Retail (other than mall) 438 5,439 4,023 5.0 1,450 56 37
Retail store  336 4,504 3,146 5.0 1,539 55 40
Vehicle dealership  43 559 549 7.6 1,000 60 26
Other retail  59 376 328 3.8 1,098 56 38
Enclosed and strip malls 164 5,890 5,094 13.6 920 70 28
Strip shopping center  163 5,087 4,470 13.5 909 70 28
Enclosed mall  1 803 624 600.0 1,600 72 34
Office  1,012 15,952 33,756 5.0 600 47 33
Administrative or professional 558 8,937 19,634 5.0 561 45 38
Bank or other financial  91 920 1,891 4.1 510 49 30
Government  113 2,655 5,434 6.0 600 45 33
Medical (non-diagnostic)  50 302 429 3.4 622 45 21
Mixed-use  125 2,656 5,166 7.5 720 50 31
Other office  74 482 1,202 4.4 692 48 28
Public assembly  352 5,559 3,108 5.4 1,800 50 41
Library  24 761 477 11.6 1,300 53 34
Entertainment or culture 51 1,266 593 5.4 1,800 48 76
Recreation  100 1,898 702 11.2 2,694 69 29
Social or meeting  135 948 665 4.4 1,600 40 42
Other assembly  41 685 670 5.7 1,776 60 47
Public order and safety  84 1,440 1,854 6.1 750 168 23
Fire or police station  69 572 788 6.0 918 168 23
Courthouse or probation office 6 436 741 32.0 319 45 47
Other public order  9 432 326 15.0 750 168 12
Religious worship  412 4,557 1,940 6.0 2,700 20 41
Service  619 4,630 4,031 4.0 1,200 50 35
Post office or postal center  30 446 553 3.2 600 63 46
Repair shop  84 535 502 5.0 1,500 50 39
Vehicle service or repair  214 1,653 1,514 5.0 1,200 50 33
Vehicle storage or maintenance 176 1,311 904 3.8 1,200 45 27
Other service  114 685 558 3.0 1,200 50 47
Warehouse and storage  796 13,077 6,362 5.5 1,500 50 26
Nonrefrigerated 787 12,635 6,108 5.4 1,500 50 26
Warehouse 427 5,377 3,018 5.5 1,333 44 32
Distribution or shipping center 151 5,688 2,991 11.6 1,667 50 24
Self storage units  209 1,571 99 3.6 2,592 105 16
Refrigerated  8 443 254 18.0 1,250 66 27
Other  125 2,002 1,611 6.0 1,500 50 28
Laboratory  16 467 713 10.1 533 50 25
Other  109 1,535 898 4.8 1,500 48 28
Vacant  296 3,256 236 4.3 4,800 0 50
 
     1Buildings with zero workers are excluded from this column. 
2Includes Convenience stores and Convenience stores with gas stations.
Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 20 buildings were sampled.
Notes:  • Because of rounding, data may not sum to totals.  • See Guide to the 2012 CBECS Detailed Tables CBECS Terminology
for definition of terms used in these tables and/or comparison of differences with prior CBECS tables. Both references can be accessed from http://www.eia.gov/consumption/commercial/data/2012/
Source: U.S. Energy Information Administration, Office of Energy Consumption and Efficiency Statistics, Form EIA-871A of the 2012 Commercial Buildings Energy Consumption Survey.