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Table B10. Number of floors, number of buildings and floorspace, 2012

Released: May 2016

Number of buildings (thousand) Total floorspace (million square feet)
  All
buildings		 One floor Two floors Three floors Four to nine floors Ten or more floors All
buildings		 One floor Two floors Three floors Four to nine floors Ten or more floors
All buildings 5,557 3,836 1,158 374 177 13 87,093 39,809 20,206 8,140 13,535 5,404
Building floorspace (square feet)                        
1,001 to 5,000 2,777 2,195 423 137 Q N 8,041 6,244 1,315 416 Q N
5,001 to 10,000 1,229 836 301 74 Q N 8,900 6,044 2,181 536 Q N
10,001 to 25,000 884 519 254 78 32 N 14,105 8,129 4,162 1,234 581 N
25,001 to 50,000 332 161 100 46 24 Q 11,917 5,761 3,584 1,655 906 Q
50,001 to 100,000 199 81 54 24 39 Q 13,918 5,643 3,882 1,624 2,708 Q
100,001 to 200,000 90 32 18 12 26 3 12,415 4,355 2,538 1,537 3,552 433
200,001 to 500,000 38 10 7 3 12 6 10,724 2,630 1,915 918 3,466 1,795
Over 500,000 8 1 1 Q 2 3 7,074 1,004 630 Q 2,116 3,104
Principal building activity                        
Education 389 266 66 36 19 Q 12,239 4,419 3,765 1,967 1,987 Q
Food sales 177 140 23 Q N N 1,252 949 223 Q N N
Food service 380 284 60 29 Q N 1,819 1,205 388 162 Q N
Health care 157 92 48 10 7 1 4,155 740 662 400 1,780 574
Inpatient 10 Q Q 1 4 1 2,374 Q Q 104 1,486 534
Outpatient 147 89 46 Q 2 Q 1,781 627 523 Q 294 Q
Lodging 158 49 53 23 30 3 5,826 697 912 817 2,194 1,206
Mercantile 602 441 116 32 Q Q 11,330 8,616 1,986 349 Q Q
Retail (other than mall) 438 303 91 32 Q Q 5,439 3,951 991 279 Q Q
Enclosed and strip malls 164 138 26 Q Q Q 5,890 4,665 995 Q Q Q
Office 1,012 554 277 118 56 7 15,952 3,644 3,577 1,877 3,949 2,904
Public assembly 352 223 87 24 18 Q 5,559 2,097 1,209 594 1,605 Q
Public order and safety 84 59 17 Q Q Q 1,440 509 293 Q Q Q
Religious worship 412 261 125 21 Q N 4,557 1,916 2,030 426 Q N
Service 619 495 94 24 Q Q 4,630 2,996 1,157 236 Q Q
Warehouse and storage 796 661 114 15 Q N 13,077 9,153 2,925 683 Q N
Other 125 94 24 Q Q Q 2,002 1,086 407 Q Q Q
Vacant 296 217 50 Q 8 Q 3,256 1,782 672 Q 544 Q
Year constructed                        
Before 1920 362 77 126 106 51 Q 3,983 530 856 902 1,552 Q
1920 to 1945 488 240 125 91 29 2 6,025 1,550 860 1,244 1,527 845
1946 to 1959 599 419 130 32 18 1 7,381 3,194 1,926 642 1,404 215
1960 to 1969 639 423 170 27 18 2 10,362 3,969 3,192 1,070 1,364 767
1970 to 1979 684 515 136 20 11 2 10,846 4,970 3,000 700 1,332 844
1980 to 1989 915 699 171 27 15 3 15,230 7,897 3,135 996 1,899 1,303
1990 to 1999 845 690 109 31 13 1 13,803 7,756 2,866 827 1,708 646
2000 to 2003 375 280 76 14 5 Q 7,215 3,517 1,734 656 1,150 Q
2004 to 2007 347 258 74 10 5 Q 6,524 3,505 1,500 436 729 Q
2008 to 2012 303 235 41 15 11 Q 5,723 2,921 1,137 667 871 Q
Census region                        
Northeast 805 360 236 147 60 4 15,534 3,865 4,098 2,421 3,409 1,742
Midwest 1,237 785 296 121 33 2 18,919 7,652 4,867 2,607 2,915 879
South 2,247 1,737 377 63 64 5 34,279 18,532 6,972 2,028 5,013 1,734
West 1,267 954 248 43 21 2 18,360 9,760 4,269 1,083 2,198 1,049
Climate region1                        
Very cold/Cold 2,031 1,200 523 227 76 4 31,898 12,175 8,343 4,460 5,340 1,580
Mixed-humid 1,743 1,222 339 106 70 6 27,873 12,382 6,124 2,292 4,616 2,459
Mixed-dry/Hot-dry 837 664 134 23 16 1 12,037 6,815 2,492 697 1,577 455
Hot-humid 799 646 128 11 12 2 12,831 7,485 2,556 527 1,581 682
Marine 147 103 34 Q 3 Q 2,454 952 690 Q 420 Q
Elevators and escalators
(more than one may apply)		                        
Any elevators 405 N 167 105 121 13 32,120 N 8,548 5,654 12,514 5,404
Number of elevators                        
One 272 N 144 75 53 Q 11,158 N 6,069 2,771 2,305 Q
Two to five 118 N 22 29 61 5 12,817 N 2,335 2,579 7,010 893
Six or more 16 N Q 1 7 8 8,145 N Q 304 3,199 4,498
Any escalators 10 N Q Q 4 2 3,654 N 333 Q 1,372 1,813
Number of workers (main shift)                        
Fewer than 5 2,892 2,191 494 164 42 Q 17,751 11,548 3,555 1,547 1,002 Q
5 to 9 1,085 767 220 77 21 Q 8,973 5,638 2,234 715 379 Q
10 to 19 731 475 197 42 16 Q 9,623 5,709 2,560 710 597 Q
20 to 49 513 282 152 55 24 Q 14,514 6,907 4,279 1,764 1,442 Q
50 to 99 206 87 65 21 31 1 13,476 5,841 3,670 1,372 2,290 303
100 to 249 93 31 24 11 27 2 10,941 3,289 2,711 1,240 3,289 412
250 or more 37 3 6 4 15 8 11,815 876 1,196 792 4,535 4,415
Weekly operating hours                        
Fewer than 40 1,149 846 229 58 16 Q 8,220 4,998 1,974 587 617 Q
40 to 48 1,346 933 284 95 34 Q 15,828 8,264 4,018 1,479 1,836 Q
49 to 60 1,244 830 295 69 45 4 20,529 9,541 5,074 1,806 2,783 1,326
61 to 84 764 510 160 67 26 2 15,867 7,516 4,016 1,669 1,711 955
85 to 167 479 355 80 33 11 Q 9,395 4,788 2,281 970 1,296 Q
Open continuously 575 363 110 52 45 6 17,253 4,702 2,844 1,629 5,291 2,788
Ownership and occupancy                        
Nongovernment owned 4,781 3,290 1,010 328 142 11 67,550 32,751 15,005 5,929 9,454 4,410
Owner occupied 2,466 1,651 552 191 70 2 30,637 13,707 7,954 3,564 4,439 973
Leased to tenant(s) 1,745 1,288 321 84 46 5 26,115 14,937 4,864 1,284 2,830 2,199
Owner occupied and leased 349 183 98 42 23 3 8,873 2,885 1,805 975 2,015 1,193
Unoccupied 221 169 38 Q Q Q 1,925 1,221 382 Q Q Q
Government owned 776 546 148 46 35 2 19,543 7,058 5,201 2,210 4,081 993
Federal 33 21 Q Q 1 1 1,573 323 Q Q 469 496
State 185 112 48 10 14 1 5,539 1,530 1,682 655 1,473 199
Local 558 413 90 35 20 Q 12,431 5,205 3,336 1,454 2,139 Q
Party responsible for operation
and maintenance of energy
systems		                        
Building owner 4,715 3,223 992 329 159 12 73,702 31,061 17,556 7,461 12,524 5,099
Business owner or tenant 724 537 137 38 12 Q 11,309 7,944 2,193 507 612 Q
Property management 54 41 8 Q Q Q 1,250 438 176 Q Q Q
Other 64 35 Q Q Q Q 832 366 Q Q Q Q
Provider of direct input on energy-related equipment purchases                        
Building owner 4,876 3,347 1,013 343 161 12 76,271 32,776 18,070 7,744 12,529 5,151
Business owner or tenant 540 394 114 22 10 Q 8,256 5,688 1,655 250 610 Q
Property management 35 26 Q Q Q Q 880 378 Q Q Q Q
Other 106 70 26 Q Q Q 1,686 967 360 Q Q Q
Number of establishments                        
One 4,205 2,997 833 259 112 4 54,994 25,686 14,210 5,591 7,895 1,613
2 to 5 862 510 224 87 39 3 17,756 7,605 3,755 1,810 3,323 1,263
6 to 10 147 87 38 10 10 1 4,425 2,016 891 254 746 518
11 to 20 68 39 16 Q 6 2 3,704 1,851 467 Q 532 638
More than 20 27 17 2 Q 4 3 3,821 1,183 439 Q 720 1,327
Currently unoccupied 248 186 45 Q Q Q 2,393 1,470 444 Q Q Q
Campus or complex activity                        
Not part of a campus or complex 3,683 2,470 817 272 116 8 52,275 24,692 13,112 4,929 6,580 2,961
Primary or secondary school 237 196 31 8 Q N 4,616 2,284 1,374 553 Q N
College or university 84 25 18 17 23 Q 4,068 359 640 653 2,125 Q
Office complex 154 82 53 12 6 1 3,456 830 745 347 809 725
Retail complex 258 208 40 Q Q Q 5,159 4,061 889 Q Q Q
Storage complex 314 288 20 Q Q N 3,212 2,468 404 Q Q N
Religious campus or complex 197 119 61 13 Q Q 1,932 749 831 239 Q Q
Health care complex 52 28 11 5 8 1 3,362 319 Q 341 1,727 556
Lodging or resort complex 65 36 24 Q Q Q 1,295 210 334 Q Q Q
Transportation complex 35 27 Q Q Q Q 554 275 Q Q Q Q
Government complex 104 71 23 Q 3 Q 2,107 523 461 Q 476 Q
Other 371 287 58 19 8 Q 5,057 3,040 893 360 682 Q
Predominant exterior wall material                        
Brick, stone, or stucco 2,312 1,438 542 211 117 5 40,463 15,139 9,534 5,280 8,553 1,957
Concrete (block or poured) 1,121 812 244 39 24 3 20,726 10,766 5,215 1,280 2,263 1,202
Concrete panels 210 148 40 9 10 3 8,693 3,781 1,753 423 1,563 1,173
Siding or shingles 905 570 215 97 22 Q 5,750 2,938 1,610 708 400 Q
Metal panels 933 824 98 Q Q Q 8,673 6,511 1,696 Q Q Q
Window glass 17 Q Q Q 2 1 1,340 Q Q Q 396 590
Other 37 26 Q Q Q Q 856 353 Q Q Q Q
No one major type 21 Q Q Q Q Q 592 Q Q Q Q Q
Predominant roof material                        
Metal surfacing 1,672 1,377 249 36 10 Q 15,916 11,145 3,198 560 757 Q
Synthetic or rubber 911 516 235 103 51 5 25,817 9,289 6,314 3,137 4,914 2,163
Built-up 836 576 159 47 49 5 21,835 8,821 4,922 1,783 4,230 2,078
Slate or tile shingles 406 261 92 33 20 Q 4,306 1,361 1,140 479 1,284 Q
Wooden materials (including
shingles)		 157 122 21 Q Q N 1,139 742 216 Q Q N
Asphalt, fiberglass, or
other shingles		 1,483 931 381 134 36 1 15,104 7,404 3,882 1,888 1,386 544
Concrete 51 34 Q Q 5 1 1,642 530 Q Q 461 278
Other 24 Q Q Q Q Q 678 Q Q Q Q Q
No one major type 18 Q Q Q Q Q 657 Q Q Q Q Q
Roof characteristics                        
Roof tilt                        
Flat 1,960 1,298 415 137 99 11 49,623 18,851 11,361 4,942 9,767 4,702
Shallow pitch 2,148 1,653 383 83 28 Q 23,853 14,813 5,271 1,295 2,000 Q
Steeper pitch 1,449 885 359 154 50 Q 13,617 6,145 3,574 1,903 1,767 Q
Cool roof 740 505 154 48 29 4 19,630 8,205 4,406 1,560 3,563 1,897
Renovations in buildings
constructed before 2008
(more than one may apply)		                        
Any type of renovation 2,094 1,250 552 195 88 9 42,216 15,663 10,408 4,547 7,555 4,043
Addition or annex 444 241 145 34 23 1 13,022 4,081 3,879 1,423 2,755 885
Reduction in floorspace 71 43 20 Q 1 1 1,753 589 512 Q 303 212
Roof replacement 987 574 267 100 42 5 20,917 6,744 5,453 2,494 3,900 2,325
Exterior wall replacement 194 111 48 28 7 1 4,230 1,196 1,285 617 684 448
Interior wall reconfiguration 889 506 245 86 48 5 21,340 6,684 4,805 2,416 4,831 2,605
Window replacement 560 271 162 88 37 3 12,265 3,516 2,927 1,554 2,823 1,444
HVAC equipment upgrade 1,101 594 322 118 60 6 26,779 8,828 6,588 2,933 5,258 3,173
Lighting upgrade 982 530 282 112 52 6 25,503 8,495 5,544 2,885 5,359 3,219
Electrical upgrade 747 392 222 86 43 4 16,160 5,230 3,764 1,741 3,553 1,872
Plumbing system upgrade 644 329 197 77 38 4 13,828 4,059 3,336 1,585 2,862 1,987
Insulation upgrade 382 188 110 60 22 1 7,607 2,404 1,840 996 1,620 748
Fire, safety, or security upgrade 616 289 198 78 45 6 17,196 4,263 4,022 2,060 4,297 2,554
Structural upgrade 152 65 47 30 8 1 3,913 1,041 966 525 809 573
Other 39 Q Q Q Q Q 848 Q Q Q Q Q
No renovations 3,160 2,351 564 164 78 4 39,154 21,225 8,661 2,926 5,109 1,233
Buildings constructed 2008 or later 303 235 41 15 11 Q 5,723 2,921 1,137 667 871 Q
Energy sources
(more than one may apply)		                        
Electricity 5,234 3,555 1,128 365 175 12 84,869 38,053 19,928 8,102 13,417 5,368
Natural gas 2,933 1,832 723 245 124 8 58,725 24,497 14,665 6,084 9,764 3,715
Fuel oil 467 256 105 58 38 9 20,200 4,139 3,375 2,091 6,246 4,349
District heat 48 Q 11 10 18 3 5,964 Q Q 544 2,830 1,900
District chilled water 54 17 13 8 15 1 4,608 219 578 404 2,523 883
Propane 510 351 110 38 11 Q 7,706 3,938 2,000 642 801 Q
Other 172 96 46 25 4 Q 3,826 1,364 1,217 463 600 Q
Energy end uses
(more than one may apply)		                        
Buildings with space heating 4,722 3,113 1,072 355 170 12 80,078 34,513 19,411 7,896 12,992 5,265
Buildings with cooling 4,461 2,954 994 338 163 12 79,294 34,156 19,012 7,734 13,036 5,356
Buildings with water heating 4,423 2,862 1,039 344 166 12 79,015 33,591 19,088 7,932 13,141 5,264
Buildings with cooking 1,589 977 385 137 82 8 38,546 13,994 9,154 3,816 7,519 4,064
Buildings with manufacturing 259 168 64 19 7 Q 5,078 2,825 1,409 433 298 Q
Buildings with electricity
generation		 410 216 100 45 40 9 25,642 6,187 5,134 2,584 7,344 4,393
Percent of floorspace heated                        
Not heated 835 723 86 Q 6 Q 7,015 5,296 795 Q 543 Q
1 to 50 697 489 151 42 15 Q 10,130 5,882 2,788 583 690 Q
51 to 99 727 418 170 93 42 4 14,650 5,845 2,862 1,500 2,606 1,836
100 3,298 2,206 750 220 114 8 55,298 22,786 13,761 5,812 9,697 3,242
Percent of floorspace cooled                        
Not cooled 1,096 882 164 36 14 Q 7,799 5,653 1,194 405 499 Q
1 to 50 1,173 782 275 85 30 Q 18,891 10,371 5,511 1,378 1,426 Q
51 to 99 897 482 227 121 61 6 22,728 7,750 4,834 2,590 4,713 2,840
100 2,391 1,690 492 132 72 5 37,676 16,035 8,666 3,766 6,896 2,313
Percent lit when open                        
Zero 70 64 Q Q Q N 322 288 Q Q Q N
1 to 50 1,099 647 301 110 41 Q 12,628 5,680 3,641 1,600 1,571 Q
51 to 99 1,666 1,042 399 144 74 7 34,814 14,604 7,751 3,465 6,414 2,579
100 2,222 1,675 386 99 56 5 35,726 16,711 8,271 2,918 5,181 2,644
Building never open/electricity
not used		 501 408 68 Q Q Q 3,603 2,526 537 Q Q Q
Percent lit during off hours                        
Zero 2,489 1,794 512 145 37 1 24,746 14,152 6,327 2,230 1,788 249
1 to 50 2,441 1,545 565 201 121 9 50,753 20,673 12,052 5,255 9,034 3,740
51 to 100 202 131 41 15 13 2 6,926 1,848 1,234 518 2,118 1,208
Building always open with
no "off hours"		 102 85 10 Q 3 (*) 2,443 1,380 316 Q 477 171
Electricity not used 323 282 30 Q Q Q 2,225 1,756 278 Q Q Q
Heating equipment
(more than one may apply)		                        
Heat pumps 628 415 146 37 28 3 11,846 4,642 2,844 1,229 2,089 1,041
Furnaces 755 471 203 61 21 Q 8,654 4,356 2,518 857 826 Q
Individual space heaters 1,247 818 274 106 46 3 20,766 8,857 4,987 2,150 3,398 1,374
District heat 48 Q 11 10 18 3 5,925 Q Q 544 2,791 1,900
Boilers 544 184 164 119 71 6 22,443 4,257 5,762 3,667 6,521 2,236
Packaged heating units 2,802 1,904 655 168 71 4 49,188 24,999 13,422 3,918 5,180 1,669
Other 62 42 14 Q Q Q 1,574 1,127 297 Q Q Q
Cooling equipment
(more than one may apply)		                        
Residential-type central air conditioners 1,546 1,027 370 120 29 Q 14,765 8,638 4,035 1,185 816 Q
Heat pumps 692 465 162 35 29 2 12,538 5,319 3,056 1,155 2,029 979
Individual air conditioners 709 394 163 105 44 3 12,420 3,436 3,034 1,960 2,851 1,138
District chilled water 54 17 13 8 15 1 4,608 219 578 404 2,523 883
Central chillers 163 48 40 27 39 8 17,041 2,072 3,075 2,116 5,873 3,905
Packaged air conditioning units 1,909 1,301 419 115 69 6 45,153 21,523 11,281 3,795 6,087 2,466
Swamp coolers 109 89 13 Q Q Q 1,918 1,161 357 Q Q Q
Other Q Q Q Q Q Q 328 Q Q Q Q Q
Water-heating equipment                        
Centralized system 3,348 2,179 786 259 118 6 47,534 20,177 11,762 5,148 7,998 2,450
Distributed system 690 451 156 58 23 2 12,688 6,094 3,133 1,181 1,646 635
Combination of centralized and distributed system 385 231 97 26 26 5 18,793 7,321 4,194 1,602 3,497 2,179
Lighting equipment types
(more than one may apply)		                        
Incandescent 1,826 1,071 474 171 104 7 38,406 13,966 9,208 3,886 7,842 3,504
Standard fluorescent 4,649 3,120 1,022 329 166 12 80,081 34,818 19,068 7,767 13,083 5,344
Compact fluorescent 2,302 1,372 577 210 132 12 53,816 18,664 12,629 5,761 11,610 5,152
High-intensity discharge 525 326 130 37 28 5 23,396 8,474 5,326 2,239 4,469 2,888
Halogen 905 506 245 85 62 7 28,059 9,952 5,781 2,789 6,053 3,484
LED 473 261 113 48 45 7 22,071 6,930 3,905 1,950 5,642 3,645
Other 10 Q Q Q Q Q 446 Q Q Q Q Q
Refrigeration equipment
(more than one may apply)		                        
Any refrigeration 3,984 2,602 915 301 154 12 73,645 31,001 17,915 7,152 12,368 5,209
Walk-in units 811 553 151 59 43 6 28,361 10,649 6,100 2,393 5,897 3,322
Cases or cabinets 915 605 182 77 44 7 28,719 10,961 5,918 2,625 5,730 3,485
Large cold storage areas 78 50 20 Q 4 (*) 4,171 1,931 942 Q 751 348
Commercial ice makers 846 541 183 60 54 7 32,734 11,581 6,986 2,980 7,380 3,807
Residential-type or compact units 3,388 2,176 800 267 135 10 62,381 25,926 15,363 6,139 10,708 4,245
Vending machines 960 563 235 78 75 10 43,936 15,933 9,519 4,288 9,715 4,481
No refrigeration 1,573 1,234 242 73 23 Q 13,448 8,809 2,290 988 1,167 Q
Food preparation or serving areas
in non-food service buildings
(more than one may apply)		                        
Snack bar or concession stand 153 99 34 10 8 2 9,884 2,655 2,051 1,080 2,379 1,719
Fast food or small restaurant 173 123 33 4 9 4 9,787 4,502 1,133 308 1,803 2,041
Cafeteria or large restaurant 130 56 35 14 22 3 15,222 3,435 3,686 1,563 4,054 2,483
Commercial kitchen/
food preparation area		 282 149 75 31 24 3 16,150 4,853 3,907 1,638 3,890 1,862
Small kitchen area 736 401 214 76 41 3 14,054 4,414 3,629 1,621 2,942 1,448
Window and interior lighting
features (more than one may
apply)		                        
Multipaned windows 3,012 1,914 720 250 119 9 60,362 25,811 14,300 6,199 10,016 4,036
Tinted window glass 1,875 1,284 400 116 67 8 45,025 19,777 10,137 4,063 7,385 3,663
Reflective window glass 549 344 144 32 26 4 15,908 5,890 3,716 1,461 2,919 1,922
External overhangs or awnings 1,867 1,283 419 113 49 4 32,188 16,607 7,423 2,367 3,976 1,815
Skylights or atriums 591 338 175 42 33 3 22,261 8,545 5,864 1,980 4,066 1,805
Light scheduling 918 598 211 59 43 7 30,263 12,166 6,418 2,568 5,639 3,473
Occupancy sensors 813 467 185 84 67 9 35,871 11,946 7,593 3,829 8,000 4,502
Multi-level lighting or dimming 349 199 84 34 28 4 14,534 5,358 2,657 1,381 3,136 2,002
Daylight harvesting 125 79 23 15 6 1 6,114 2,552 1,041 547 1,221 754
Demand responsive lighting 176 120 42 Q 3 1 4,738 2,723 1,069 Q 468 274
Building automation system (BAS) for lighting2 208 148 38 8 12 3 12,068 5,368 2,428 602 2,276 1,394
 
1These climate regions were created by the Building America program, sponsored by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE).
2In earlier CBECS publications, BAS was referred to as Energy Management and Control System (EMCS).
Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 20 buildings were sampled.
N = No cases in reporting sample.
(*) = Value rounds to zero in the units displayed.
Notes:• Because of rounding, data may not sum to totals. • See Guide to the 2012 CBECS Detailed Tables or 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.